Hello! We are high school students in South Korea.With not much time left until graduation, we proceeded with one project.Since we learned about diodes in the class of physics II, we decided to make a keyboard using them.We adopted keyboard-matrix because this allows us to implement keyboards while using fewer controllers.(example of keyboard-matrix)It is difficult to produce a pcb from scratch without professional knowledge, so we made a little modification of the pcb of the keyboard released as open source.But we have one problem.There is no cost left to manufacture the case because it is too expensive to manufacture the pcb.So we are writing to PCBway that we would like you to sponsor the case.These are rendered pictures of our keyboard.Thank you for reading, and have a nice day!

While i was in between houses, i was watching a lot of DIY nanoleaf projects but none of them really stood out.So i want to make a DIY Nanoleaf solution that everyone can afford (by doing it themselves) most important part is i want to make different versions for the different types of people in the world. the ones that can Solder, the ones that cannot, the ones that have the ability to program a ESP device and the ones that cannot. so in short everyone deserves beautiful lighting options in the game room, study or bedroom without the big pricetag but with the satisfaction of building it yourself.I am an starting YouTube creator with an IT background and love to keep my mind in shape by learning new things, i hope in achieving this by looking at products i like and make my DIY version of it.for this projects i have come up with some different pcb’s to make an awesome version of the Nanoleaf Triangle Mini:This part will be placed on three sides of the triangle to connect the LED’s in a closed loop and connect them to the other triangles.i used one in the DIY controller part to.This is the controller pcb i created for the persons that do not want to solder everything together with wires.You put a Wemos D1 Mini on here and flash it with arduino or WLED (i prefer WLED, it comes in a complete package.)if you want to do less soldering and hook all the leds up as one you can use this board, if you order this in white it also reflects the light better.now for the crème de la crème:If you do not want to solder the led’s or connections just use this board, led’s are placed in the corners with the connectors in the middle, the led’s are connected in a circle with an in and out signal. This can be ordered assembled by PCBWay.the 3D printer parts:I made different base parts because of the choices you can maken in pcb’s:the left is for the pcb with everything on board the right is for the connectors where you need to solder the leds on.this is the cover for the version where you solder the leds, the thicker part covers the leds so you do not see the leds but only the diffused light in the middle, the version for the onboard leds has a bigger output in the middle.controller box that you can just like the originals one attach to any side of the triangle.there is a different model for the pcb with everything on it.If you do not have a 3D printer PCBWay can hook you up with amazing printed parts ;)When i have al the parts, i will make a series on how to put them all together just like the other videos i linked below !! to give you an impression on what i made before:DIY Nanoleaf LinesDIY Nanoleaf Lines - Process from start to endDIY Nanoleaf (Hexaleaf)DIY Nanoleaf

This is my first PCB project, AstroLit is a fully open source ESP8266-based RGB led controller that you can use to make any Smart bulb, lighting fixtures, or neopixel strips.The board has 6x 2A PWM channels, 1x I2C connector, and a niopixel output with which you can bring your imaginations to make any kind of smart lighting product.I had this project in my mind for the past 2 months and finally, it's ready to rock.

About meI am a student from Poland. I study Computer Science at Warsaw University of Technology at the Faculty of Mathematics and Information Science. This year I completed my first degree studies and now I continue my education on the Master studies.I am particularly interested in IoT and embedded development on the software side. I am planning to work on these subjects in my Master thesis, which I will be writing during the upcoming academic year (in Poland it starts in October). Therefore, I started a project of an IoT device, which I intend to use for the purpose of my thesis.Project descript_ionThe device will be a smart lamp. It will be controlled via MQTT protocol over WiFi and also utilize BLE for setup purposes (setting WiFi and MQTT passes). It will be possible to remotely turn the light on and off, change its color and intensity and make it fade out during the specified period. Moreover, it will be possible to schedule each of these actions to happen in the future.The usage of MQTT protocol enables lots of possibilities. The device can be controlled by the client via a mobile app (which I also plan to implement). It will be possible to organize the devices into several groups and control the whole group with a single command (e.g. all lamps in one room). However, what is much bigger interest for me, it will also be possible to integrate the lamp with other devices. One simple possible usage is to use it together with a device equipped with a move sensor (e.g. a Raspberry Pi). When the movement is detected, the sensor device can publish an MQTT message and make the specified lamps turn on or react in any other possible way.The lamp will have ESP-WROOM-32E MCU and will be powered via USB type C. As a light source, it will use an RGB LED ring. It will also have a few signal LEDs to show its state. For development purposes I made the prototype using ESP32 dev board and connecting the components on a breadboard. Below I present a video showing how it can be controlled remotely via a Python script_.Words to PCBWayI would really like to turn my prototype into a proper PCB. That would allow me to use comfortably multiple devices, and of course, it would look much more professional. I could even make a cool case using 3D printer. As I stated at the beginning, I am rather a software developer and not really into electronics. However, I have managed to prepare the prototype and to design a PCB, which turned out to be quite exciting and also very educational. Nevertheless, I will not be able to solder the components myself and I would like to have my PCBs assembled by professionals. Unfortunately, my budget is rather low and I can't afford ordering the service for a full price. I am sure that with your help I can make this project truly amazing.Thanks in advance,Bartosz

Good day ,please take note that the upcoming prototype will work in malls shopping centers,stadiums hospitals with the size of 2 mm x 4 mm the app will be installed on the smart phone so that the kidnapper when he or she trying to exit the doors of the shopping mall or hospital with the toddler that toddler escape device will ring and and the ringing will reflect on the parent's smart phone alerting them that the kidnapper is exiting the shopping mall or hospital with the toddler and the bracelet of the size of 2 mm x 4 mm device that will be wrapped around on the wrist of the toddler while the parents are on shopping spree in malls or parking so that when the thief is trying to snatch and steal the toddler from the mall or parking the device will respond on the device that is attached on the toddler's parents. WHEN the toddler is distance 13 meter or more far from the parents in malls parking lot it is where the they actually steal the toddlers around the globe this will work only by distance certain meters apart from the child's parent from malls because sometimes you will find out that some toddlers they just turned to get lost from their parents in malls or parking this device will be called toddler escape i will upload it by tomorrow on page this will work only in malls around the world not at home and the will be an app that will be installed on the parents phone in order to switch it off when the toddler has been found around malls some, most of the children are being stolen in shopping malls and the nurse in hospitals will be carrying this toddler escape device when the kidnapper is trying to exit the doors of the hospital with the baby the toddler escape device will reflect on the device that will be carried by the nurse at that point in time.THE kidnapper will be unable to remove the toddler escape device from the baby or the toddler as it is none removable and it will be remove by the toddler's parents by unlocking the toddler escape device on the smart phone app.REGARDS.SINDILE.

About the Team Amador Valley Unmanned Aerial Vehicles (AmadorUAVs) is a high school robotics club based in Pleasanton, CA. Since 2018, we have been designing an autonomous octocopter drone to compete in the international AUVSI SUAS competition, a collegiate contest where each aircraft must perform a series of tasks including waypoint navigation, obstacle avoidance, computer vision, and payload drop. As one of only 4 high schools among 70 college teams, we recently won second place, beating many prestigious universities including Cornell, Duke, IIT Bombay, and others.(Our team at the competition grounds) The Drone Our main drone, named Boreas, is a large coaxial quadcopter design (2 motors * 4 arms) with a 1.4 meter arm span and a 2 meter propeller tip-to-tip span. It uses a Pixhawk 5X flight controller with PX4 autopilot. It also includes a Jetson Nano to run our image processing and autonomous detection. All of this is sandwiched in between two large carbon fiber plates, holding down the large carbon fiber arms. A smaller top plate holds our 6S 22Ah LiPo batteries, and a wooden plate on the bottom carries additional electronics, our ground vehicle, and our camera/gimbal. To see more about our drone, check out our website at https://www.amadoruavs.com/(Boreas is able to produce over 45kg of thrust and can hover for 45 minutes) Custom Boards Our team heavily utilizes custom PCB designs in order to pack powerful MEMS sensors and microcontrollers into small spaces, and in order to simplify our electronics onboard our vehicles. However, these board designs push against the limit of what we, as a small high school robotics team, are capable of assembling ourselves. Without access to expensive tools, it is very difficult to reliably assemble small pitch QFN components, BGA sensors, and 0402 passives. Rover Driver BoardOne of our tasks is to drop an autonomous ground rover from the drone. It needs to be as small and light as possible to fit on the bottom of the drone. Our new driver board controls the motors, payload winch, and power regulation of the rover. This will significantly reduce the overall weight and size of the rover. It also replaces delicate wires with more robust PCB traces, which will improve reliability.(A KiCAD render of the PCB) AHRS Board Many of our vehicles and devices, including the drone but also our camera gimbal and ground vehicle, require accurate angle and altitude estimation. For this purpose a compact, yet powerful solution is needed; our team has designed a custom, low-cost AHRS (Altitude and Heading Reference System) solution, which keeps our costs down while utilizing the latest MEMS technology. This type of technology is essential for our small form factor devices, such as our custom camera gimbal. Due to the small mobile sensor chips used on this compact board, it is especially difficult to manufacture ourselves. (A KiCAD render of the PCB) Power Monitoring Module Due to the high voltage and current consumption of our drone, it is very difficult to find off the shelf power modules that monitor current consumption (to calculate remaining flight time) and regulate lower voltage for our electronics. We designed a power module that includes a microcontroller and CAN for power monitoring. Microdrone One of our club’s most ambitious projects is to design an open source, small form factor, inexpensive drone for education and experimentation. By utilizing a custom, integrated flight controller to keep weight down and integrate state-of-the-art sensors into a tiny package, we hope to be able to bring low-cost access to high-quality open-source drone technology to our entire community. However, due to the complexity of the board (over 150 components per FC!) and the size of some of the sensors, hand assembly is unfeasible. Antenna Tracker ControllerTo communicate with our drone in flight, we use a Ubiquiti PowerBeam WiFi dish. Since it is a directional antenna, we designed a motorized antenna tracker to point it at the drone. We have created a Raspberry Pi HAT PCB with sensors and motor drivers to control the tracker. The problem we face in most of these designs is that they are just far too small to manufacture by hand. They have a number of small components that make it almost impossible for us to assemble by ourselves. Due to this, a lot of the boards shown are unable to work as they should, and we are left with insufficient products. Receiving support from PCBWay would allow us to further develop these boards as well as more, furthering our project and increasing our performance overall. Thank you for your support!

As the RONIN MST team, we participate in the model satellite competition under the name of TEKNOFEST, which is a national competition. Project; consists of electronics, mechanics, ground station, sensor science and electrical subsystems. Mechanical casing production and integration of the project has been completed. Electronic communication between subsystems has completed high altitude tests without any loss. Our team completed the preliminary design report stage with a degree of 97.5/100 points. Our team and project needs; to cover the PCB costs for the prototyped electronic system. We ask PCBWay to sponsor us for PCB production and shipping costs that exceed the team budget.You can reach out us via;Ronin MST - LinkedInRonin MST - InstagramSome of photos:

I'm AbelMathews from builderduino. I like to make electronic and robotic projects. I don't have money to buy Electronics and Robotics components for my new project. and i don't have money for paying fees for my studies. Dear viewers please donate minimum 1USD to my bank account. UPI: open.2001653339@iciciRobotic Arm.About the project.This is just a simple robot arm made out of readily available materials and instruments, such as micro servos, cardboard, and hot glue, designed for beginners. The code and circuit can be improved, so feel free to make changes and learn!Features.It can record and play five positions using potentiometers and buttons. (But you can add as many as you want).Demo.Arm Assembly.Pictures of the arm assembly can be found here:http://imgur.com/a/2zxi1Similar instructions can also be found at 0:18 in the Version 2 video below in the Update section Everything should be able to run off of a power supply from a computer via the USB, but adding an external power supply is also possible, just make sure the servo can take it.Schematic diagram.Code.#include <Servo.h> Servo servo1; //Servos Servo servo2; Servo servo3; const int LED1 = 2; //LEDs const int LED2 = 3; const int LED3 = 4; const int LED4 = 7; const int LED5 = 8; const int button1 = 12; //Buttons const int button2 = 13; int button1Presses = 0; //Button values boolean button2Pressed = false; const int pot1 = A0; //Potentimeters const int pot2 = A1; const int pot3 = A2; int pot1Val; //Potentimeter values int pot2Val; int pot3Val; int pot1Angle; int pot2Angle; int pot3Angle; int servo1PosSaves[] = {1,1,1,1,1}; //position saves int servo2PosSaves[] = {1,1,1,1,1}; int servo3PosSaves[] = {1,1,1,1,1}; void setup() { servo1.attach(5); // Set up everything and will run once; attach servos and define the pin modes servo2.attach(6); servo3.attach(9); pinMode(LED1, OUTPUT); pinMode(LED2, OUTPUT); pinMode(LED3, OUTPUT); pinMode(LED4, OUTPUT); pinMode(LED5, OUTPUT); pinMode(button1, INPUT); pinMode(button2, INPUT); Serial.begin(9600); } void loop() { // put your main code here, to run repeatedly: pot1Val = analogRead(pot1); // This will read the values from the potentimeters and store it... pot1Angle = map(pot1Val, 0, 1023, 0, 179); // ... and this will map the values from the potentiometers to values the servos can use and store it for later use pot2Val = analogRead(pot2); pot2Angle = map(pot2Val, 0, 1023, 0, 179); pot3Val = analogRead(pot3); pot3Angle = map(pot3Val, 0, 1023, 0, 179); servo1.write(pot1Angle); // These will make the servos move to the mapped angles servo2.write(pot2Angle); servo3.write(pot3Angle); if(digitalRead(button1) == HIGH){ // This will check how many times button1 is pressed and save the positions to an array depending on how many times it is pressed; switch/case works like a if statement button1Presses++; switch(button1Presses){ case 1: servo1PosSaves[0] = pot1Angle; servo2PosSaves[0] = pot2Angle; servo3PosSaves[0] = pot3Angle; digitalWrite(LED1, HIGH); Serial.println("Pos 1 Saved"); break; case 2: servo1PosSaves[1] = pot1Angle; servo2PosSaves[1] = pot2Angle; servo3PosSaves[1] = pot3Angle; digitalWrite(LED2, HIGH); Serial.println("Pos 2 Saved"); break; case 3: servo1PosSaves[2] = pot1Angle; servo2PosSaves[2] = pot2Angle; servo3PosSaves[2] = pot3Angle; digitalWrite(LED3, HIGH); Serial.println("Pos 3 Saved"); break; case 4: servo1PosSaves[3] = pot1Angle; servo2PosSaves[3] = pot2Angle; servo3PosSaves[3] = pot3Angle; digitalWrite(LED4, HIGH); Serial.println("Pos 4 Saved"); break; case 5: servo1PosSaves[4] = pot1Angle; servo2PosSaves[4] = pot2Angle; servo3PosSaves[4] = pot3Angle; digitalWrite(LED5, HIGH); Serial.println("Pos 5 Saved"); break; } } if(digitalRead(button2) == HIGH){ // Pretty self-explnatory here button2Pressed = true; } if(button2Pressed){ // if the boolean button2Press is true, then the servos will run though all their saved positions for(int i = 0; i < 5; i++){ servo1.write(servo1PosSaves[i]); servo2.write(servo2PosSaves[i]); servo3.write(servo3PosSaves[i]); Serial.println(" potentimeter Angles: "); Serial.println(servo1PosSaves[i]); Serial.println(servo2PosSaves[i]); Serial.println(servo3PosSaves[i]); delay(1050); } } delay(300); }

Among the most important electronic devices in the electronics laboratory is the voltage source. This source can be linear, switching, adjustable or not, but it is very useful for powering various electronic assemblies.The circuit below proposes a linear voltage source, adjustable, of medium power, being able to support loads up to 70W-80W in some cases.FunctionalityThis circuit is supplied from the primary side of a transformer with a secondary winding calculated to discharge 24 VAC at 3 A. The alternating voltage is rectified by the diode bridge B1 and then filtered with the filter composed of the capacitor C1 and the resistor R1.The schematic includes some original elements that make it quite different from other power supplies in its class. Instead of using a feedback loop to control the output voltage, this circuit uses a constant gain amplifier to obtain the reference voltage required for stable operation. The reference voltage is generated at the output of operational U1. The current passing through R8, the 5.6V Zener diode D8, R5 and R6 makes us obtain a very interesting voltage reference. The voltage of 5.6V appears on R5. Through R6, which has the same value as R5, passes the same current (the current at the input of the operational is negligible) so that the voltage collected from R5 and R6 at the output of the operational U1 will be 11.2V, ie twice the value of the reference voltage of the diode Zener.The next floor is an amplifier made with the U3 circuit that has a constant amplification of about 3 times, established with the relation A = (R11 + R12) / R11. This floor raises the reference voltage from 11.2V to 33V. Voltage limits are set with RV3 and R10. With R10 the offset is adjusted and the minimum voltage is set to 0V and with RV3 the voltage in the range 0-30V is varied.Another original element is the constant current generator converted from a constant voltage source. The voltage read from R7, the shunt current resistance, from which the load current is measured, is applied to the non-inverting input of the circuit U3 and the inverting input reads the output current to ground (potential 0V) through the resistance R21. The regulated potential from RV2 is also applied on the non-inverting input, potential set by the values ​​of the components at minimum 1V. As the load current increases, the voltage will remain constant thanks to the error amplifier U2. If the voltage on R7 increases above 1V, the circuit U3 switches to the constant current generator mode and through the diode D9 connected to the non-inverting input of U2 which controls the output voltage through the series regulator. This type of connection allows the accuracy of maintaining the output current at constant levels of up to 2mA. The capacitor C8 has the role of stabilizing the circuit at sudden variations. By exiting the operational U3, together with the control of U2 when the voltage decreases (increasing the current per load) the transistor Q3 will also be controlled, which, through the collector current, allows the LED to signal the exceeding of the regulated limit current in RV2. A negative voltage doubler scheme with C2, C3, D5 and D6 is used, using the pulsating voltage on the rectifier bridge, thus obtaining a negative voltage which is then limited by R3 of the Zener diode D7. This creates the negative voltage line that supplies U2, U3 and through R14 the command to block through Q1 the output voltage when the negative voltage drops (Q1 would enter the conduction, Q2, Q3 blocked). This method is a great advantage in the case of a shortcircuit, experimental laboratory test. In the vast majority of stabilizer schemes, when a voltage drops, the charged filter capacitors can still generate currents through the open regulators which can thus cause significant damage to the circuit.Calibrating the circuit- Potentiometers RV3 and RV2 are brought to a minimum;- Measure the voltage after rectification, on the filter capacitors (32-34V);- Check the negative voltage on the Zener diode D7 (5.6V);- Connect the voltmeter to the output on the 200V range;- Adjust the semi-adjustable RV1 to obtain the voltage of 0V at the output;- Connect a resistive load to the output (16-30Ω). The load can be a 30-60W resistor immersed in a container with water for cooling;Check the voltage setting in RV3 and the current limiting setting in RV2. By turning counterclockwise, the LED will light up and the current will go into limitation.

TeamKART is the official formula student team of IIT Kharagpur. We are a group of students who love to design, manufacture and test formula-student style prototype race cars.The group was founded in 2008 by a few enthusiastic members, who steered the team through its initial stages where we faced acute shortage of funds and lack of technical know-how. We persevered. As a result of which, TeamKART is currently the largest student project in IIT Kharagpur. Every year, we design, manufacture and test a new car and take it to the Formula Student competitions. The journey of each of our new cars begins with its design. This involves the application of all the classroom knowledge in actual engineering problems to achieve the set goals for the car and its different systems through modeling, simulation, and experimentation. The next challenge is to bring this design to reality by checking the feasibility of various designs, fabricating different parts of the car through various manufacturing processes, and assembling them to the final stage. The last phase involves testing and tuning the systems of the car to rectify problems and achieve set targets. Our website: https://teamkart.org/Our Facebook page: TeamKART Facebook pageVideo of our last project: The K5

For this project we have designed an in-house, multilayer_ed, U-Slot, circularly polarized patch antenna that will be integrated on the "AcubeSAT" nanosatellite. Our goal was to design a small, compact antenna that will allow data transmission to our ground station with high data rate. The data transmitted will be images of microorganisms that will be taken on the nanosatellite during a biological experiment and will allow us to study the effects of space conditions on them. In order to achieve the required antenna properties we have concluded on a square patch antenna with truncated corners. So far we have constructed prototypes of our model using photo-resistive copper-coated FR-4 and epoxy glue and we have tested its performance in an anechoic chamber. However, it is about time we move on to the manufacturing phase of the project and manufacture the Evaluation and Flight models. On the former, formal tests will be conducted and then our Flight model will be integrated on AcubeSAT and set in orbit in order to provide us with useful data that will expand our knowledge on how microorganisms grow in space. Since space is a demanding environment, the requirements for the final PCBs are strict. Our custom created PCBs cannot fulfill these requirements, air bubbles between the layers and other manufacturing mistakes can cost us degraded functionality. For that reason, professional work is needed for the manufacturing of these models, so that we can eventually launch them to space!

Transportino, the great robot for lazy people.I know that out there, some people will love having a robot that can bring you stuff without the need of actually using your legs to move. So just thank me and build your very own Transportino robot!But wait, what is a Transportino?Transportino is a car robot that can bring stuff to you just by talking with alexa. Yeah, my main plan is to build an alexa skill that will control this robot so you will just say to come to your room and then go somewhere else around the house.This robot as you might think, is composed of multiple parts such as the mechanical parts, the electrical parts and the software.In short terms, it is composed of two boards: the car controller one and the processing board (which is essentially a raspberry pi). The first board is controlled by a raspberry pi which runs ROS2, the robot operating system. The raspberry not only controls the robot, but it also processes data from sensors to elaborate an adequate path that Transportino will follow.Talking about the sensors as you can see, it has a Lidar module, an MPU-6050 for gyro and acceleration and two motor magnetic encoders.The car controller board is powered by an RP2040 directly embedded into the pcb.The pcb is entirely made from me using KiCadThis is my first actual serious robotics projects so any suggestion is appreciated.If you wanna build one yourself,the project with all of its details can be found on the github link below, so hope you will look at that.https://github.com/mattsays/transportinoSome Cool Images

PROJECT DESCRIPTIONAbout Us-IIT Roorkee Motorsports is the official Formula Student Electric team of IIT Roorkee which participates in the world’s largest Inter-Collegiate Engineering competition conducted by the Formula Student and FSAE by designing and fabricating an open-wheel formula-style electric race car. Our passion is not for cars alone - it is fuelled by our desire to use engineering and technology to change the mobility sector in India.The team has participated in Formula Student competitions every alternate year - Formula Student UK - 2013 with a Hybrid Car, FSAE Australasia in 2015 with our first fully Electric car, and Formula Green in 2017. The team participated in Formula Green 2020 at Coimbatore, and Formula Bharat 2020, which was conducted remotely due to the pandemic. Continuing the legacy, the team is now gearing up to participate in Formula Green 2023 strong>Formula Student UK 2023.Our recent achievements include:· 3rd position in the overall competition and in the Engineering Design event at Formula Green 2020.· Overall 6th position amongst 23 teams at Formula Bharat 2021 which was held online due to the pandemic.RMSE19 - Last manufactured carRMSE22- latestOur website and social media can be found here:IIT Roorkee MotorsportsIIT Roorkee Motorsports - Home | FacebookIIT Roorkee Motorsports: My Company | LinkedInOur Next Project- RMSE22Top Speed: 160 km/h0-100 km/h in 2.9 secWeight without Driver: 229 kgPeak Motor Power: 100 kWPeak Motor Torque: 230 NmBattery Capacity: 8.55 kWhPremiere inclusion of Aerodynamic Devices with considerably greater downforceRadical redesign of chassis with significant weight reductionImplementation of Telemetry data analysis for overall performance optimizationBMSWe design a Battery Management System in-house and solder the various components on the manufactured PCB. All of it is done by the team itself. It is a very crucial element in the vehicle because Li-ion batteries are sensitive and have to be managed properly to ensure the safety of the vehicle and the battery pack. We use bq76 IC by TI in our BMS. For our next project RMSE22, we are working on a 128S 6P battery pack design. We will have 8 PCBs and each PCB will monitor 16 cells.Brake System Plausibility Device (BSPD)The BSPD is used to detect hard braking. It receives signals from a pressure sensor (that checks whether the brake pressure is within the threshold limit of 30 bars) and from a current sensor that is used to check the power delivered to the motors. If an unwanted value is received from any of these sensors for more than 500 ms, the BSPD generates an error signal which opens the shutdown circuit for the next 10s. DischargeTo ensure proper braking and stop of a car we need to discharge the motor capacitor after the car has stopped. We have designed a PCB to implement the discharge functionality within 15 seconds. This PCB also contains a part of the pre-charge circuitry which charges up the motor capacitor approximately within 3 seconds using alternate paths depending on the charge of the capacitor. Moreover, additional functionalities like Tractive System Active Light are also implemented which is an indicator of different states and errors of the car.Power-Control CardThe Control Card receives signals from BMS, IMD, BSPD, APPS, few other PCBs, etc and generates the necessary response signals to control the shutdown circuit and communicate with other subsystems. It has a Nucleo as a central microcontroller through which additional functionalities and safety checks are implemented. Data Acquisition-Since our car consists of many sensors and actuators that need to be controlled periodically, we have designed a PCB for Data Acquisition it consists of various connectors to different sensors and processes them with an onboard Nucleo. It also has connectors to display data on the dashboard and we can wireless access the data using telemetry.HV-LVFor RMSE’22 we design an HV-LV PCB for calculating the state of charge of battery through sensing of voltage and current by using AMC1200 and its output is given to the ADS8354 which converts this output to digital, now this output of ADS8354 works as the input to NUCLEO board, which we program in a way that it gives the SOC(state of charge) of the battery remaining. Apart from these, there are various other components used in this PCB like relays, CAN transceivers, and ICs. The PCB is well soldered and tested to ensure that it's working properly and not causing any damage to the car.BCMSince our car’s battery is too high, we need to step down the voltage for components to work properly. We can directly convert high voltage 400-700 V to low voltage around 48 V with the help of the BCM4414 bus converter along with filter circuits and reverse polarity protection. Since we are dealing with high temperatures, we use a heat sink on the bus convertor. DCMThe output of bcm works as the input here and we use a DCM3623 dc-dc converter with input range of 16-50V and outputs a voltage of 24 V to form this PCB along with reverse polarity protection and filter circuits. Three PCBs are connected in parallel.

Hello!My name is Joshua McCoy, and I am a 16 year old, high school student, from the United States. I hope to one day become a PCB designer, or to work in cybersecurity. This is my first PCB that I have designed, and I'm hoping to give it out as a PCB badge at Defcon 30, in Las Vegas. I love learning more, and gaining more skills, such as PCB design. Backstory;Last year, I attended for my first time, Defcon in Las Vegas. I've wanted to attend for a long time, but last year was the first opportunity that I've had to attend. I really enjoyed it, and fell in love with the art of PCB "badges". (a battery powered PCB hanging from a lanyard.) I was given many of them, and decided that I wanted to learn, and to make my own. I decided to base mine off of a Defcon joke rule, "3, 2, 1 ! (It means, 3 hours of sleep, two meals, and 1 shower! lol)This is my first PCB that I have designed, so it is pretty simple overall, but I'm proud of the design, and hope to be able to give it out at Defcon, to anyone that wants one, in the way that a lot of people gave me theirs last year. I'm hoping to make around 50 or more of them, so that there is plenty for me to give out.Link to pick and place file download; https://mega.nz/file/elhwhD4S#fUBatDDUCCJFWu0sq6ce7U--qXfRccImPdzQrVDRiHALink to BOM download; https://mega.nz/file/npJWWQyC#r24Oh8j0xHpa7kjtkKh8tiqx373hB7ekY1MPWey7UEcNow, for the images of the PCB!This is the front, it has the text, and LEDS, and resistors. It will be powered by a CR2032 battery, which will be placed on the back.The back of the board, which will have the battery placed there.I hope to be able to distribute it, to anyone at Defcon that would like one, in the same way that many people gave me theirs last year. I also hope, to be able to learn more, after I make this badge, to be able to make more complicated, and cooler badges after this. I think that it will help me gain more experience, and learn PCBS more. Without a sponsorship, it may not be possible for me to afford making, and distributing the amount that I would like to, so it would mean a lot for your help.Thank you for considering, best regards!JoshuaTo PCBWAY:I am able to place your logo, and website information on the outside packaging of the PCB, to promote traffic to you all. I think that this could be a great opportunity for marketing for you all, as they will be given to people that are interested in PCB's, and would be interested in using your services in the future. I think this could be beneficial to both of us.Thank you for considering this, as it means a lot, to potentially be able to make my PCB badge.Thank you.Please contact me, and I can email Gerbers, Pick and Place, and BOM for the board. Thank you

Overflow robotics is a starting robotics company, that is a non-profit project that aims to develop the robotics niche our team was founded in August 2021 and we have participated in 2 competitions up till now, we participated in the mate rov regional competition and achieved a 2nd place as well as best pilot award and we have also participated in the ORCE competition and achieved a 1st place trophy. our team started because we wanted to develop in the underwater robotics niche, especially in ROVs. our first vehicle was a huge success (Arsenik). we would like to get sponsored by PCBway. we develop some ROVs and we are looking forward to developing more robotics projects to help the community.

Project ContextThe project was started out of my own interest and will now be finished in the context of my semester thesis at the Technical University of Munich - where I am studying Robotics. The project involves the development and construction of a six-axis robot. The development includes the layout/calculation, the design as well as the constructionand manufacturing of the mechanics and electronics of the robot. The design is developedfrom scratch.Descript_ionThe basic structure of the robot consists of an aluminum construction (all supporting components),which is enclosed with 3D printed covers. To achieve the necessary transmissionratio for the drives of the axes, two-stage synchronous belt drives are used. The axes aredriven by outrunner brushless DC motors. The servo control boards are of the shelf (for now). All motors are controlled by a central bus via a host controller,which provides central position control (absolute encoders on the axes) and safety features.The low-level control of each axis is implemented in the servo controllers.The production of all components is done with self-developed machines (CNC 3-axis millingmachine, lathe and 3D printer). After manufacturing the circuit boards are assembledand reflow soldered bymyself.ElectronicsThe custom PCBs include:inkremental encoder power distribution boardmain control boardThe main control board is still a work and progress and is illustrated in the following:MechanicsThe current status of the robot is shown in the cover photo. The overall design, including the 5th and 6th axis - can be seen in the following picture:To improve the structual integrity and payload capablility all the structual components are made from aluminium excluding the the 6th axis, since this part is to complex to be machined on my machines.First part of the video build seriesSupport from PCBway would be very helpful to realize the project, because it is solely done and financed by me and the skills of PCBway would allow me to improve and push the developments even further.