I am Sedat a undergraduate electric-electronic engineer student. I recently started RC Airplane hobby and I purpose develop myself in this hobby step by step in systematic manner. Therefore, I ask PCBWay for sponsorship my BLDC & Servo Motor Tester project at very early stage of my hobby as it can be seen by simplicity of my project.One week ago I needed a PWM signal generator to test my new BLDC motor. My aim was to measure thrust data of my motor at different duty cycle values of PWM signal. I made a market search and I found very common servo and BLDC tester which has a potentiometer, input and output ports structure. As my aim was to measure thrust data at different duty cycles, I should know exactly at which duty cycle I am at. However, the products that I found in market does not contain any display. For this reason, I designed a circuit which includes a Arduino Nano, a 16x2 LCD display, 2 potentiometer (one for adjusting duty cycle and the other for LCD contrast setting). Then, I implemented circuit on a stripboard and I verifed it with tests. Right now, I want to conclude this BLDC and Servo Tester project by replacing stripboard with professional PCB because PCB will avoid loose cable contacts and other possible failure reasons when testing motor. Also, replacing stripboard with PCB will gain better and finished project appearence to circuit.I always see sponsorships of PCBWay with my favorite youtube channels on different countries from all around world and I hope PCBWay might be sponsor my project too generously.Best wishes,Sedat

Kind regards, my name is James and I am an electromechanical engineer, this time I would like to show you my PWM speed control for DC motors.This controller is designed to be used in motors of up to 1Kw of peak power, with a voltage of 10V to 70V and a maximum current determined by the mosfets to be used.This controller was developed mainly for the control of high power motors in factories, either for use on a conveyor belt or in any other mechanism that requires maintaining a high power variable voltage, for this project I used a PIC16F1824 as for its manufacturing and operating characteristics made it an ideal candidate for the project.Regarding programming, what I did was that I implemented a small PWM control in the PIC, which would act as an impeller to switch the input voltage through the mosfets at high frequency and achieve a variable voltage at the output of the fountain.So far I have only mentioned the first half of the work, the other half is based on the constant feedback of that output voltage to keep it stable at all times, this part is also done by our beloved PIC, which by means of a resistive divider measures the output voltage and converts it to a smaller voltage so that the pic can measure it but with the same relationship so that it can be interpreted in a proper way.With all the above mentioned, it would only remain to clarify the output filter that this source must have to obtain a decent quality of voltage at the source output, in this case I chose to use an LC filter that by means of a coil and a capacitor will smooth the pulses generated by the mosfets and allow us to obtain a voltage with a minimum ripple.without more to say I say goodbye and greetings to all.

In this bad time we are in, we should stay away from the coronavirus threat as much as possible. However, some of the people who were caught coronavirus and were quarantined in their homes, ignore this threat and escape from their homes and quarantine. Quarantined people pose a huge threat to other healthy people. We thought of many ways to minimize this threat and came up with this idea by combining our skills as electronic engineering students. We are planning to develop a wearable device to follow these people who escape from their homes during the quarantine process, to enable them to spend their quarantine processes in the most efficient way, and to provide them with instant reports to the authorities.I made the revision 2 of project. It include ATMEGA328P microcontroller, SIM808 GSM and GPS module, an SMD GPS Antenna (Linx), touch and proximity sensor, Li-Po charger and protection circuit, Nano Sim Card holder.

Hello, my name is Miguel Angel and I am an electronics student from Argentina, I want to show you today my project which is a 500 W RMS sound amplifier based on the International Rectifier's IRAUDAMP 1, I decided to design this amplifier since lately it was It has made it very difficult to get amplifiers of this class, of good quality and inexpensive, so I designed this amplifier that with very few components and easy to get we will get an amplifier with excellent performance and of very good quality.This amplifier will allow us to obtain versatile powers depending on the application, it will also allow the use of all types of speakers either for high medium or low frequencies with good power and sound quality.For a long time I have heard that class D sound amplifiers are of no use that they have a much lower quality than other classes of amplifiers commonly used, this amplifier was partly designed to show that this class of amplifiers have many advantages over those of more classes and that this class also offers my ciriterio a sound quality equal to that of any class AB amplifier.Regarding the efficiency of this amplifier, it is around 90% but it depends a lot on the components that are used, especially on the RDS (on) of the mosfets to be used, also on the resistance of the inductor that is used, for which I recommend the use of good quality inductors, since they will ensure a good sound and without distortion caused by saturation of the inductor, it is also recommended to use generous mosfets to withstand current peaks without suffering so much, I also recommend the use of mosfet with the lowest possible gate load, since this will limit the amplifier's working frequency.On the other hand, I would like to place a lot of emphasis on the power source that this amplifier must carry, since this class of amplifiers is not that they do not consume, but that what they consume very little is wasted by the amplifier, so if If you want to obtain a reliable and stable power in this amplifier, I recommend sizing the transformer by 10% to have a considerable range in the amplifier supply.Do not forget either the bank of good quality capacitors to avoid voltage drops produced by the current peaks consumed by the amplifier.

FESB Racing is a group of enthusiastic students dedicated to designing and building Formula Student race cars and MotoStudent race bikes. Goal of our association is to enrich students' knowledge through teamwork and professional work. As majority of our vehicles' components are designed in house, it is necessary to ensure that all our systems are properly supplied, monitored and safe from any unusual activities . This is why we decided to design our own Power Distribution Module. Power Distribution Module or PDM is a complex PCB board that replaces both fuses and relays and supplies all our devices in racing car with power. It is, so far, our biggest embedded hardware project.As already mentioned, PDM supplies voltage to all devices found in racing car. Not all devices operate at same voltage levels, therefore it was necessary to provide different voltage levels that will be needed in vehicle. There are several voltage regulators - buck converters, boost converters and linear converters for each loaded device to ensure required voltage is supplied to the device. With proper application of each we have 24V, 12V, 7V and 5V outputs. This covers all voltage ranges for other devices.Instead of using numerous fuses and relays, PDM is designed to control all systems with the use of smart switches that act as a replacement for all these fuses and relays. Smart switches measure current in every moment and based on default parameters turns the load ON/OFF. Along with current, PDM also has voltage and temperature monitoring. Biggest advantage of having smart switches is not having to change relays and fuses, but to simply detect problem and to rectify the fault. Major advantage is also self repair during driving. Instead of blown up fuses which would disqulify the car from the competition, PDM simply restarts and allows car to continue racing if the load is still undamaged.PDM is based around STM32 series of microconntrollers. Default parameters are programmed based on the load's specs and are important part of PDM functioning system. Measured values are compared to these parameters and if fault is present, channel turns OFF. Some of the faults are overcurrent, short circuit, short to VCC, overtemperature, overvoltage, undervoltage. All data is shown on our custom made display with a warning if FLT is present. The entire PCB is designed so that it complies with automotive power supply protection. To send and receive data, PDM has integrated CAN and connects to network to communicate with other devices in same network.

## DESCRIPTIONMy name is Parmesh Singh, from India. i have designed a PCB to driver a 16X2 or a 20X4 LCD using I2C port.you can program 8 different address that means you can driver up-to 8 LCD panel using only 4 wires i.e Data, Clock, Power and Ground.The best part is its small enough to hide behind the LCD panel but big enough to use a DIP-8 chip that is PCF8574.With this you can adjust the Contrast as well and also control the back-light using I2C port only. this module works on 5v and consumes less power.I'm also attaching the PCB layout and schematic.*Schematic*Top Layer*Bottom Layer*Both Layers

The Illinois Space Society from the University of Illinois at Urbana-Champaign is participating in the Intercollegiate Rocket Engineering Competition 2021 at Spaceport America, New Mexico. We’re developing the rocket’s avionics system with many capabilities in mind, such as sensor data acquisition, engine abort, active control using servo actuation, custom software, software and hardware redundancy, and power management. To have our avionics board be capable of all these features, we’ve put a lot of thought into our system architecture, component list, and overall PCB design. Commercial Off the Shelf (COTS) Sensors:Power System:Flight Computation Board (FCB):More Renders!:

The Team SwarmUS is a team of nine engineering students from the University of Sherbrooke at the end of their bachelor diploma whose graduation is scheduled for December 2021. SwarmUS has multidisciplinary expertise in engineering, since its members come from computer, electrical and robotics engineering.The Project The project aims to establish an open software and hardware platform (respectively Hivemind and Hiveboard) allowing the implementation of a robotic swarm doing simultaneous localization and mapping (SLAM)[1] from heterogeneous robots and Android smartphones. Android phones can be used as an augmented reality interface to view the shared map produced and as a control interface for the robotic swarm. This technological breakthrough is taking place during a major engineering design project and will be presented at the MegaGÉNIALE Expo 2021. The project is academic in nature and will be used by a client at 3IT[2] in the robotics research group IntRoLab[3].What is the MégaGÉNIALE Expo? The MégaGÉNIALE Expo is the largest exhibition of university engineering projects in Canada. It is a unique opportunity to come and discover the work of graduates in each of the fields of engineering, namely: building, civil, chemical, biotechnology, electrical, computer, mechanical and robotics. The event attracts approximately 4,000 people annually. For more information on the event and photos of the event from previous years, visit the following page: https://www.MégaGÉNIALEe.usherbrooke.ca/.[1] https://en.wikipedia.org/wiki/Simultaneous_localization_and_mapping[2] https://www.usherbrooke.ca/3it/en/[3] https://introlab.3it.usherbrooke.ca/mediawiki-introlab/index.php/Main_Page (French only)Robotics sectionPioneer 2DX robotsThe SwarmUS team was given the task to update two old Pioneer 2DX that was unused from its client’s lab (IntRoLab). These robots will not only be given back to the client, but they will also serve as bench tests to test our swarm platform. Since the electronics and the software of these robots were obsolete, a full upgrade of this robot was needed and only the chasiss and the motors were kept.PowerThe robots are powered by a 12V GOOLOO GP37-Plus LiPo battery. Theses batteries have some internal protections and an integrated charger, thus simplifying the design around the robot’s power source. However, an additional under voltage protection was needed to prevent the robot from draining the battery below the voltage limit of the LiPo cells. Under voltage lockout boardA custom PCB that contains an under-voltage lockout (UVLO) and a voltage monitoring circuits was then designed by the team. This solution emits a high pitch sound whenever the voltage drops below a selected threshold and opens the main power relay under another lower threshold. Power distributionThe power tree is divided in 3 main parts: the 12V main power, the 12V motors’ power and the 5V computer’s power. A main relay controlled by a toggle switch and the UVLO board connects the battery to the 12V main power which, in return, gives power to a 5V@5A regulator and to another relay that controls the motors’ power. The motors’ relay is controlled by a red mushroom button to easily cut off the 12V power to the motors in an emergency case. The 5V regulator powers the main computer and all the robot sensors. Sensors, computer and motor controllerThe robot brain is a Raspberry Pi 4 4GB that runs on Linux 20.04.1 LTS. To sense its environment, the robot is equipped with a RPLidar A2M8 to visualize obstacles all around it and is equipped with a Realsense D435i or a Realsense D455, depending on the robot, to have visual and depth information of the scene afront of it. In addition to the sensors, a RoboClaw 2x60A from BasicMicro is used as the motor controller since it has built-in protections, PID controls and quadrature encoder reading features. The motor controller and all the sensors are connected to the Rasberry Pi via USB. Furthermore, the Hiveboard and the BeeBoards are integrated into the robot and are connected though Ethernet to the Raspberry Pi to give the robots the necessary hardware to join a swarm.Mechanical modificationsThe electronic components and the computer are maintained by wooden plates built with laser cutting technology to have the perfect fit in the narrow interior of the robot. The sensors’ supports and side panels of the robot were 3D printed to give us more flexibility in the design process.Robot’s softwareThe Raspberry Pi runs all the robot’s software inside the ROS (Robot Operating System) middleware. With the help of sensors, a navigation stack and RTAB-Map, the robot can move in its environment while mapping it and localizing itself in it. Additional ROS packages were made by the team to connect the ROS environment to the HiveMind running on the HiveBoard to let the swarm behaviors control the robot.Map produced by one of our robot The Hardware sectionThe following section will present in detail the 3 PCBs of the SwarmUS project:· The HiveSight: Test platfrom for the Decawave Ultra-Wide Band (UWB) integrated circuit (IC) the DW1000· The Hiveboard : The central board of the last iteration· The BeeBoard : The UWB ‘’sensor’’The HiveSightAs mentioned, the HiveSight was a test platform for the team. It confirmed that the team could do a functioning PCB (from design to testing) with the facilities we had access to. It was also a test platform for the UWB technology. Let us go over the board:Protection: function as an over-voltage, over-current and polarity inversionUSB: The USB IC opens a COM port for debugging purpose. It is connected to the u-USB port3V3&1V8 Gen: On board 3v3 and 1v8 power rail generation. The 1.8V comes from the 3.3V rail. All the components on the board are using the 3.3V rail. Only the Decawave IC DW1000 is using the 1.8V power rail. IMU: Inertial measurement unitWROOM reset: Physical button of the ESP32-WROOM (which is on the bottom side of the PCB) The ESP32-WROOM is a Wi-Fi IC.Flash 32k: 32 Kb flash memory. Used by our custom solution of the ESP32.ESP32: custom implementation of the ESP32 (Wi-Fi IC). This implementation was used to make a comparison between our custom implementation and the WROOM IC.CLK Gen: Generate the 38.4MHz clock for the DW1000s. Also includes an synchronisation signal for both the DW1000.DW1000: Ultra-wide Band IC. Used to localize other HiveSight in distance and angle. Each DW100 has 4 LEDs for debugging purpose.Our implementation of the DW1000s is based off the white papers published by decawave (https://www.decawave.com/application-notes/) and is being tested by our team as I write theses lines. However, we did manage to catch some errors in our design.The 5V power rail can come from 2 different places: · From the green connector at the top left· From the u-USB connectorFurthermore, the 3.3V source can come from the 3V3 rail or be supplied by the Nucleo. The Hivesight can also supply 5V or 3.3V to a Nucleo. However, when testing our design, we noticed that when the Nucleo supplied the 3V3 voltage to the HveSight, it was flashing an over-current warning. We recommend using a separate (as in the green connector/u-USB connector) power supply for the HiveSight.The SPI communication between the HiveSight and the Nucleo is a bit deficient, as we did not treat the SPI lines correctly while routing (too much top to bottom changes) and the ground loop is not the smallest possible. We did not connect the ground of every connector of the HiveSight correctly which is slowing the SPI bus. The maximum speed of the bus we could do was 1Mbit/s of data.The USB line to the COM port IC has switched plus and minus data lines, resulting in an error in the COM port. We recommend to either change the design or putting the data line in the correct order by removing the ESD protection and solder some wire across. In our implementation, that is the approach we used and put hot glue on top to prevent accidental disconnection.Also, the IMU was never installed on our version because the footprint lacked the paste opening, therefore no solder was present, and the part was never connected to the board. This simple mistake will be fixed in the next implementation: The Hiveboard.The HiveSight was designed to be used with the STM32F429ZIT Nucleo (despite the silk screen mentioning STM32F426, another mistake from our part). All the files (schematic, BOM, PCB, Gerbers) are in the Github link. The HiveBoard & the BeeBoardThe HiveBoard is the next implementation of the project. It will consist of:· An central MCU (STM32H7) · 6 USB-C channels containingo An SPIo A Clock signal (38.4MHz)o A sync signalo Interrupt request (IRQ) (Receive)o Chip select (nCS) (sending)o Reset (sending)· A 38.4 MHz Crystal · A WROOM ESP32 for Wi-Fi communication· Redriving ICs for LVDS and LVCMOS signals· An FT4232 FTDI debug IC· A u-USB for debugging purpose.· An ethernet port to transfer the information to the Robot computer.· An IMUThe HiveBoard is the motherboard for distributing the clock to the 6 USB-C channels and Syncing all the clocks together. Also, it hoards the information sent by the BeeBoards. The Beeboard are 5x7 cm board hosting a single DW1000, an antenna, redriving circuits and switches in order to detect the USB-C polarity. Connected to a HiveBoard channel, the Beeboard sends an IRQ to the Hiveboard, meaning it has information. The Hiveboard then initiate the SPI transaction to retrieve this information and calculates the distance and the angle of the signal received. The HiveBoard and the Beeboard are both in the development stage. We do not have any 3D model now, but it will be updated in the next weeks. Stay tuned on the GitHub for the updates.The software sideAs for the software part of our project, the development is guided by the three fundamental requirements of swarm robotic, which are the following:· Agents in the swarm must have the ability to exchange data with each other, on 1 to 1 basis (unicast) as well as 1 to many (broadcast)· Agents in in the swarm must be able to locate other neighboring agents with reference to themselves.· Agents in the swarm are controlled by a shared intelligence which takes decisions for the swarm based on the information supplied by the agents constituting the swarm.The goal of our project is to deliver a platform that will be able to support those features and expose them for any system. To test this, we will be using our platform alongside an existing robot based on a Raspberry-Pi (See robotics section). The following figure present each component of our architecture, which will be detailed in the following sections:The HiveBoard and its firmware, the HiveMindThe HiveMind is the core of our system and therefore handles the three requirements of the swarm exposed earlier. It is based on a STM32 processor which runs a firmware that interfaces further hardware components (like the BeeBoard) as well as running the Swarm Intelligence. The HiveMind makes all the calculation to translate the data received from the BeeBoard into an actual position associated with a robot. As for the Swarm Intelligence, it is based on Buzz, a programming language dedicated to programming swarms of robots (https://the.swarming.buzz/wiki/doku.php?id=start ). This Buzz script is runs internally in a virtual machine in the firmware inside all HiveBoards, relying on the data exchanged on the network to takes decisions. Alongside the STM32, an ESP32 is connected via SPI and runs its own firmware, responsible of handling the Wi-Fi connectivity and data exchange across the network. Furthermore, this board exposes two choices of interface to communicate to the robot, either via ethernet or USB.The Host RobotThe host robot is a robot in which we connect a HiveBoard. The core system component that we develop is the bridge. It handles the command sent by the Swarm Intelligence to the robot, like executing a movement or internal sharing data. The rest of its feature is on a per use-case basis. In our case, the goal is to perform a mapping of the environment to share across the swarm, with the use of a camera, a lidar and RTAB-map, the mapping software. The goal of our development on the host robot is to show the potential of our platform and swarm robotics.The Augmented Reality Android AppAlongside the swarm of robots, we are also developing an android application to be able to monitor the state of the swarm and command it. To better visualize the state of the swarm and distinguish robots from one another, the app will feature Augmented Reality to add visual cues on robots as well as take commands, like setting a waypoint in the environment to get to. To interact with the robots and send commands, the Android device will be connected to an HiveBoard with a USB connection also delivering power to the board. However, the Android device will not be able to be located in space with our BeeBoards, as our architecture only supports 2D positioning on the Android device will be significantly higher from the ground, but it will be able to have an idea of the position of robots with the use of April Tags, which are specialized Qr codes to identify robots, and evaluate their relative position.For more details:https://github.com/SwarmUS Support from PCBWay would mean a lot to us. It would lightened the enormous financial pressure we are under. With the sudden rarity of electronic components, our BOM upped its cost, and we are afraid it might affect the functionality of the HiveBoard (ie, 3 channels instead of six) and force us to choose unfit component for our application. We would be proud to represent PCBWay as a major partner at the MÉGAGéniale Expo in December 2021!

This is a very cheap project, around 15$ for all the parts. You can use your T12 soldering iron tip like ts100 soldering iron.If you don't have a T12 soldering iron tip you can buy from the links down below.Below we have the schematic for this board. To supply it we use a type mini B USB connector. That is connected to the power MOSFET but also to some pads for the buck converter so we could get 5V for the other microchips. We have 2 push buttons to set the temperature and other settings, a vibration sensor for the sleep mode and the ATmega328p AU microcontroller.IMPORTANT!!! There are a few more pads for the UART connection so we could program the board. See that the board has no SPI connection, so the ATmega328 chip must have a bootloader, otherwise, we won't be able to burn one later.Parts List:1 x ATmega328pAU: LINK eBay1 x USB connector: LINK eBay1 x 16MHz crystal: LINK eBay2 x SS12 Schottky diode: LINK eBay1 x 2SC3356 NPN BJT: LINK eBay2 x 1k Resistor 0603: LINK eBay5 x 10k Resistor 0603: LINK eBay1 x 1M Resistor 0603: LINK eBay1 x 200k Resistor 0603: LINK eBay2 x 2k Resistor 0603: LINK eBay3 x 200 Resistor 0603: LINK eBay1 x 43k Resistor 0603: LINK eBay1 x 2.2nF 0603 Capacitor g: LINK eBay3 x 100nF 0603 Capacitor: LINK eBay3 x PCB clip for fuse: LINK eBay1 x LM358 8SOP OPAMP: LINK eBay2 x 90º Side push button: LINK eBay1 x Vibrate sensor: LINK eBay1 x i2c OLED 128x32: LINK eBay1 x IRF4905S MOSFET: LINK eBay1 x T12 tip: LINK eBayhttps://www.ebay.com/itm/New-ATMEGA328P-AU-MEGA328P-AU-ATMEGA328P-TQFP-32-SMD-IC-Chip-BBUS/202465635847?hash=item2f23e46e07:rk:1:pf:0&mkcid=1&mkrid=711-53200-19255-0&siteid=0&customid=link&campid=5338106513&toolid=20001&mkevt=1

About the team:UBC Unmanned Aircraft Systems is a Canadian Student design team focusing on innovating the unmanned aerospace industry. Students from diverse faculties such as Engineering, Arts, Science and Business all dedicate up to 30 hours a week to learning, designing, manufacturing and testing. Furthermore, we participate in a national competition, USC-STC Student UAS competition, and international competition, AUVSI SUAS.This year our team aims to design a new aircraft called “The Vulture”, and build package delivery systems to be used for the delivery of medical and commercial packages for our two competitions. Our software team also aims to develop ground control software services, dynamic obstacle avoidance, and image processing systems. Furthermore, we place second in Phase 1 of the USC-STC Student UAS 2021 competition for our design paper.Our Projects:VultureVulture is our flagship drone intended to fly completely autonomously at the AUVSI SUAS 2021 competition. The aircraft is capable of flying over waypoints, deploying the Wall-E rover, identifying objects on the ground and mapping a survey area. The multirotor can lift payloads up to 1.5kg and has a flight range of over 12 kilometres, with a top speed of 90km/h.WallEWallE is a two-wheeled autonomous rover intended to deliver a water bottle for the AUVSI SUAS Competition. The rover is dropped from our multirotor from a height of 100ft with a winch mechanism. ScorpionScorpion is a tread based rover intended to carry medical packages for the USC-STC Student UAS competition. The rover uses an fpv camera to scan QR codes to determine the correct packages to pick up and their respective destination. The rover integrates with a net on our multirotor and is flown from a depot (pick up point) to a clinic (delivery location).UAS PCB DesignVulture: Power Distribution Board (PDB)Our Power Distribution Board is an integral part of functionality for our drones. This year, we would like to shift from using a premade PDB to designing our own. It needs to convert power from a 12S - 2P LiPo battery to 5V/5A and 12V/5A outputs, in order to power numerous onboard systems such as Pixhawk flight controllers, sensors, microcontrollers and radio telemetry systems. Furthermore, we need to measure the voltage and current being supplied from the batteries and power electronic speed circuits for the motors. With our demanding requirements, we need to be able to pull up to 250A at 50V from our batteries through the board! Shown above is our completed PDB design. It has 6 layers in total. There will be 2oz copper on the outer layers and 6oz copper on the inner layers. We have ensured that our board is able to carry up to 250A by correctly choosing trace width/spacing.PCBWay has been very helpful in our design for this board. Earlier this year, we designed and ordered 2 prototype boards from PCBWay for testing. The online quote system is efficient and the website interface is intuitive. We were very happy with the end result and would like to order our final board from PCBWay as well. WallE Rover PCBThe WALL-E PCB was designed to be a central hub for the navigation and control systems of an autonomous waypoint finding rover. The PCB is designed to be a streamlined method for managing the rover's electrical requirements by replacing bulky external wires with carefully placed internal traces. Another benefit of the PCB is its modularity and ease of repair. In the case of a component becoming damaged, it can easily be replaced with a new one through basic desoldering and soldering techniques. Another benefit of the PCB is that it eliminates the risk of components becoming disconnected by securing them with solder flux. As the rover will be lowered by a winch from a drone and drives through rugged terrain, any unsecured electrical components are likely to disconnect which is an issue the PCB prevents. Overall, from controlling the motors to relaying GPS data, this PCB is an efficient and modular way of managing the electrical requirements of an autonomous rover.WallE Winch PCBThe main purpose of the Winch PCB is to control the descent of our AUVSI rover using a PID control loop. The PCB board takes in 12 and 5 V to power all the components. Indicator LEDs are incorporated to assist with debugging any power issues. An Arduino Nano is used to carry out the PID control with the required speed information collected by the encoder. To maintain a constant rover decent speed a linear actuator pulls a string wrapped around the winch shaft as instructed by the PID control. Friction in the system changes based on how tight the string is pulled which is how the shaft speed is controlled. The rover line is reeled back to the drone using an ESC controlled DC motor. A limit switch is used to stop the motor once the carabiner at the end of the line has reached the drone. Screw-in terminals are used to secure components onto the board because they offer the convenience of easily swapping out components during our competition.Scorpion Rover PCBThe PCB for Scorpion features a compact integration of all the components needed for Scorpion to function. Using the PCB Scorpion’s wiring becomes significantly more organized and we are able to cut the weight of the rover down considerably. It includes headers for the rover’s servo’s and a built in motor driver. The board also includes a voltage regulator to step down the 12V battery voltage to 5V for the onboard arduino nano and other 5V components. In return for any sponsorship you offer us, we can offer you brand exposure across our social media pages. We have over 1000 followers - all interested in engineering. Thank you for your time in considering our request. Any assistance PCBWay could provide us would be greatly appreciated.For more information about UBC UAS, please visit ubcuas.com or check our social media @UBC UAS https://www.unmannedsystems.ca/home/students/student-competition-details/

I work with Formula Kentucky. We are a university club that competes in the Formula Society of Automotive Engineer's racing series. Every year, we design, fabricate, test, and race a scaled down formula racecar. Our current car is FK04, which we have been working on for 2 years. With this car, we want to take a huge leap forward in our datalogging capabilities. Part of our new data logging package is this project, a Controller Area Network Hub that connects our sensor boards to the data logger while also powering them.While relatively simple in schematic, this board plays a vital role in allowing us to have multiple sensors sending data to the data logger. We need a board that can make connections while not taking up very much space. This board accomplishes both of those things by being about 1.5 inches by 1 inch. Being this size allows the board to be easily placed anywhere we need it on the car, allowing us to connect as many sensors as we want wherever they are on the car.

Hello, my name is arda. I'm doing Arduino projects for over 5 years. I designed this PCB because there are no shields made for Arduino Nano.Also if you're interested in NRF24 and Arduino it has a lot of issues.This PCB allows you to use Arduino shields and NRF24 radio modules on Arduino NANO without using jumper cables.

We are team SunrIde; the leading UK student-led University rocket team holding the National Altitude Record of UK amateur rocketry at 36,274ft since our latest launch. :)SunrIde consists of more than 50 hardworking engineering students ranging from Undergraduates to PhD from Sheffield Hallam University and the University of Sheffield. Founded in 2017, SunrIde has been expanding ever since, gaining international recognition, and maintaining four highly-engineered projects to achieve rocketry innovation through our research.Our primary goals are to push our limits to achieve innovation, and to provide rocketry enthusiasts with the opportunity to learn about and become involved in the space industry. Scheduled rocket launches for the Summer of 2021 are: - A starter-level mid-power solid (5000ft) for the National rocketry championship- A high-power solid to reach over 30,000ft for the Spaceport America Cup - A 12-dissertation level liquid fuel and high-power to reach over 10,000ftAs part of our endeavours, our Avionics Team has designed a modular board that will allow us to use the same PCB on all our rockets for 2021.We need to print eight PCB boards of dimensions approx 60mm*60mm. To simplify the purchase, there's no SMD components or need for assembly.Unfortunately this year our team has a very restricted budget. So we are asking for your support. https://www.youtube.com/watch?v=QAdy8fZ4ZLM

Board Name: USBee32-S2 Designer Organization: SRA VJTI - Society of Robotics and Automation , VJTI MumbaiTitle: An Open Source USB (Type A and Type C ) Breakout PCB board using ESP32-S2-WROOM Module designed in KiCADPurpose of the Project: Since many devices in day to day general life use a lot of different ports for being powered or controlled by any other device. To eliminate this problem of carrying multiple ports, jacks and cables, we came up with the idea of USBee32-S2. It performs support with devices having USB Type A or Type C Male Ports for exchange or control of data. Also since ESP32-S2 being a reprogrammable chip, various desired functionalities can be achieved. Extending this application, this proves to be useful in case of game controllers and similar peripheral devices.Description of the project: It uses Espressif's ESP32-S2 Microcontroller Chip.USB Breakouts for both USB Type A and Type C Ports are provided.Powering the Board can be achieved using either :USB A, USB C or (5V) Voltage Input Pin - Vin on the board.Custom GPIO PIN based debuggable LEDs are provided.Small form factor of 70mm x 27.9mmCan use it as a power/communicating device for a joystick/ game controller.Space efficient PCB with integrating majority components in SMD type.More details :Image Samples - https://imgur.com/a/x69NazMSource repository - https://github.com/dhairyashah1/pcb-design-ESP32-S2

Greetings colleagues, My name is Juan David and I am a student of electronic engineering at the central university of Nicaragua, I consider myself a passionate person for what I do and I really like PCB design, so today I present a project that I had been designing and testing for several weeks now, I present my 1000W class D amplifier.This amplifier is based on the already known IRS-D900 from the International Rectifer company, This amplifier is very versatile since it can be used to work the entire frequency range, in addition, simple changes in the circuit allow to adjust the power as required by the application.Basically the power of this amplifier is limited to the power supply that is used, among other things, the saturation current of the inductor that is used must also be taken into account since if it saturates early it will directly affect the quality of the inductor .amplifier sound.I personally recommend the T157-2 core for the output inductor of this amplifier, working at powers equal to or less than 600W, to obtain optimal sound quality at all times, if more power is required it is advisable to put together several cores in order to generate a larger ferrite area and get a more solid inductor preventing it from saturating.Another issue to take into account would be the use of mosfets with a low Qg since if it is very high it could limit the switching on and off of the mosfets at high frequency causing damage to the amplifier, I also recommend the use of mosfets with RDs (on) as low as possible since this resistance of the mosfet will directly influence the efficiency percentage of the amplifier.One thing that I would like to clarify about this amplifier topology is that, having an efficiency close to 93% does not mean that they do not consume, it only means that they do not waste, therefore if you really want to obtain high powers you should use a source of the same power or greater by 10% or 20% so that it works more rested, also good capacitors to keep the supply voltage as stable as possible and that will generate a reliable and stable amplifier.

In this bad time we are in, we should stay away from the coronavirus threat as much as possible. However, some of the people who were caught coronavirus and were quarantined in their homes, ignore this threat and escape from their homes and quarantine. Quarantined people pose a huge threat to other healthy people. We thought of many ways to minimize this threat and came up with this idea by combining our skills as electronic engineering students. We are planning to develop a wearable device to follow these people who escape from their homes during the quarantine process, to enable them to spend their quarantine processes in the most efficient way, and to provide them with instant reports to the authorities.