Hello.After autumn, the new year and Christmas will come, and I decided to design a Christmas tree. Usually such Christmas trees are made on microcontrollers and LEDs. But in our difficult time, in the conditions of a worldwide pandemic, the prices of microcontrollers have risen sharply and many radio amateurs can not afford to buy them. I decided to make a Christmas decoration without using a microcontroller at all.At the heart of the Christmas tree, in addition to Christmas snowflakes and all sorts of such things, RGB LEDs with a built-in control circuit, you just need to supply power and they will shimmer in different colors, and how exactly depends on the diodes themselves. The fact is that there are LEDs with a slow overflow, and there are also fast ones, you can buy them in ChinaSo, these LEDs are operational from about 2.5 V to 4.5 V, I decided to put a penny stabilizer at 3.3 V and thus it became possible to power the Christmas tree from USB 5V.In the 1st photo, the Top Layer is presented - it is also the front view, the soldering mask for this layer is not used at all, and in the 2nd photo, the Bottom Layer will have a green soldering mask on it, but there will be small rectangular indents in them where there will be LEDs, there will also be no soldering mask.Why exactly is this so? I spied the idea on one of the foreign sites. The LEDs will be soldered on the contrary, that is, from the reverse side they will shine on the lumen of the textolite to the front side. The LEDs themselves are very bright and dazzle the eyes, and I decided to do just that. In any case, they can be soldered as shown in this publication, in general, there is a field for experiments.PCBWay always supports electronic engineers with creative projects, so I ask for sponsorship for the implementation of this project.

The Candy Machine is smart Skittles (or other candy) dispensor.It's a project we decided to do for school, but we wanted to do something we also could use at home and share with others. With this project we want to increas our skills in every accent.On the display you could set the amount of candy you want and with the rfid card you can pay your candy.After sucessful payment the candy is falling out.In the new version 2.0 we want to fix some bugs from the first version. In addition we want to add some new features which are the following:WiFi ConnectionUsermanegement on the cloudNew payment methods like google pay / apple pay usw.New display with a better guiNew cpu with more processing powerThis video shows our first version and how it works: https://www.youtube.com/watch?v=MM5qW0tC1BI

This project is a machine that enables you to control and of your electronic gadget using your mobile phone and google assistant. It can turn on and off anything that is connected to it. Material Required:Nodemcu (ESP 32 or ESP 8266) - 1830 point solderless breadboard - 2 or 1 PCBRelay Module - 1Jumper Wires - 5Rechargeable Battery - 1Micro USB Cable - 1I decided to make it because, I like making new different projects that are useful for the people.It works on the Wi-Fi which enables it to receive signals from the mobile phone.If I have connected by Home Light to this system and the Nodemcu is connected to the Wi-Fi, then I can turn it on and off from anywhere in the world unless the mobile phone is connected to some type of internet connection so that it is able to connected to the cloud and send signals.I want sponsorship for my projects so that I get encouragement and move ahead and make many more projects.If I get sponsored by PCBWay then I would recommend all my friends and classmates to by some or the other thing from your company.Thanks and Regards Saksham Khurana

Hello guys welcome to my blog, my name is Maria Ramirez, today I bring a great project for those fans of clean energy, in this case I bring an MPPT solar charge controller based on arduino.This charger has an efficiency close to 98% since it has a synchronous source controlled by means of the arduino, this charger is ideal for applications where it is required to feed large powers and it could even be implemented to charge the batteries of electric cars.I designed this charger since in many parts of the world, unfortunately they do not have electricity in their homes, so I thought that this charger could be of great help since it could be used to power lights, computers and even refrigerators, if you have enough batteries, but nevertheless design this charger since today the world demands a change towards that the energies we use must be clean energies to help the planet, and of course, to learn from them since they are the future.Initially this charger is designed to operate solar panels with a power of 300 watts each for a total of 1200 watts Although something that I must highlight is that the charger has a maximum input voltage of 80 volts and a maximum output current of 25 A, This charger is designed to work with various battery voltages, it can work with 12 V - 24 V - 36 V - 48 V batteries, in addition, if the charging algorithm for each type of battery is taken into account, this charger can charge batteries of all.I decided to design a synchronous BUCK type converter since they offer us a very high efficiency Therefore we will waste less energy and at the same time our charger will be more efficient and smaller, this Source will have a switching speed of 60 khz and will be controlled by means of Our arduino which by means of a resistive divider at the output of the Source and a current sensor, will analyze the power delivered to our batteries and modify the PWM always in order to find the highest possible power.This design is very versatile since it is possible to increase the power in a very easy way, we will only have to change mosfet for much more powerful ones depending on the power we want to obtain, in the same way we must take into account the LC output filter of the Source since we do modify the input voltages We will have to recalculate the filter, speaking of the filter I want to highlight the importance of quality What must these components have to obtain the calculated power, since the inductor must be able to withstand the maximum current of the source without get to saturate, since if it saturates this it will modify its value also modifying the cutoff frequencies of the filter and directly affecting our quality of energy that we obtain from the charger, in the same way the capacitor must be of very good quality to ensure the least possible ripple at the source outlet.Thinking about the future, it would be a very good idea to design a system to analyze the monthly energy production, and in this way have more control in our system, a charge controller could also be implemented for the batteries that need it. How is the case of lithium batteries, and in this way always keep the batteries balanced and be aware of the entire system in general, the efficiency of this charger will depend directly on the quality of the mosfet and the coil used.This charger implements several protection systems, for over temperature, for short circuit and for overload, in all cases, turning off the DC - DC converter directly, in this type of sources it is of utmost importance to have a good system on and off the mosfets Jackie this way we will avoid the accidental on or off of any of the mosfets causing a short circuit in this case, we must also take into account the dead time of the mosfets in the Source to guarantee the correct operation of the source and avoid heating in vacuum of the mosfet.When we talk about high-power converters, it is essential to take into account the correct design of the PCB since a bad design of this could cause significant losses in the source and its malfunction, therefore it is important to take into account the correct dimensions of the tracks depending on the intensity of current that circulates through them, that is why in my PCB design I left some tracks without antisolder to reinforce with tin, since a significant amount of current will circulate, it is also of utmost importance to ensure correct cooling for the mosfets, since depending on the temperatures of these, we will have more or less limitation regarding the amount of current that they can switch, in addition to the impact that this has on the useful life of semiconductors.Without more to say I say goodbye and I hope you enjoy this project as much as I do, any questions or suggestions in the comments, thank you very much for your attention guys.:)

PCBWay, hello.I want to make a project of a beautiful and original Christmas tree. The outline of the Christmas tree consists of 5 patterned parts. The basis of the Christmas tree is 16 address RGB LEDs WS2812B. An 8-bit STM8S103F3P6 microcontroller will control them and create a variety of effects. There is a button in the project, it can be used for various purposes, for example, you can switch effects or change the speed of effects or other functions.Structurally, the Christmas tree is made on a 2-layer printed circuit board.This is top layer:This is bottom layer:The dimensions of the Christmas tree do not exceed 10x10 centimeters. The Christmas tree has graphic elements on the theme of Christmas and new year. Also, for an additional pattern, asterisks are used on the same line with LEDs, this gives a special charm to the project.Thanks to the use of RGB LEDs, you can get practically all shades of colors, including transfusion from one color to another, as well as rainbow effects. It should look great.For example, a charger from a cell phone with 5V and a load current of 1A is suitable for power supply. As an alternative power source, you can use the computer's USB port or portable power bank.Such a project is perfect for both home use, and for work in the office or other areas of application, for example, it can decorate the interior in a restaurant or cafe. In addition, everyone will be able to repeat this simple and inexpensive project and order excellent quality printed circuit boards from PCBWay. In the conditions of a crisis and a worldwide pandemic, we electronics engineers and home-made people will be able to make our world a little brighter with the help of LEDs and a soldering iron.But, for the implementation of the Xmas Tree project, i need your sponsorship. Sincerely, Ivan.

The D1R05C FMCW Automotive Radar utilizes the Ka-band (26GHz) for detecting Doppler frequency shifts and phase offsets in FM ramps to sense the speed and range of an object in aperture. This antenna-on-package board boasts a robust architecture, including automatic gain control and superheterodyne receiver, all in a miniaturized form factor (6cm x 6cm).Key Features Overview:27.5 dBm peak output power80 m/s top detection speedWeather and fog resilienceLow phase noise and jitterMinimized spectral thermal floorNon-zero IF basebandSPI-compatible interfaceBy using the Ka-band against the typical E-band for automotive applications, this radar provides readings even in foggy or non-nominal weather conditions. Phase locking allows for low phase jitter and noise, meaning more accurate range detection. Non-zero IF baseband allows for better spectral characteristics and ease of use for DSP. The usage of discrete elements atop the board is to aid in reduced cost. In addition to the aforementioned, isolation barriers, isolative directional coupling, and MS-CPW bordering transitions help to reduce spectral noise and thus increase performance reliability.I was inspired to make this project to address the need for reliable radar under abnormal weather conditions and a wide thermal range, all whilst keeping a small and manageable form factor for use in automotive and robotics applications. A second, unfinished board will include the low-noise power supplies, FPGA for DSP, and ADC/DAC's. It will also support SPI communication for implementation into almost any system without having to account for the hiccups with I2C systems. To me, this project was a testament to both my analog and digital skills, proving quite a challenge.Because a board of this magnitude can be quite expensive, the entire board (in parts and whole) have been tested using various 2.5D and 3D simulators, including CST, Microwave Office, and Sonnet Suite.Fabrication Requirements:Rogers 4350B Substrate0.254 Substrate Thickness/heightENIG finishImpedance Control0.1mm track/trace spacingFront and back SMD assemblyAbide strictly to the documented reflow soldering profileAs a high school student, I have no funding available to manufacture and fabricate this board. Sponsorship is greatly appreciated. This board is Copyrighted (C) by Ryan Wans under "Wans Research" 2021. Contact ryan@ryanwans.com for more info.

IntroductionLedBox V2 is a fully contained, sound reactive, ESP32 based module for controlling 5-12V addressable LED strips (WS2812, SK6812, etc.), supporting both 3-(VDD,DAT,GND) and 4-(VDD,DAT,CLK,GND) pin configuration.The module has a dedicated step-down converter, digital MEMS microphone, side button, 32kHz IR receiver, 10A safety resettable fuse, 1000µF buffer capacitor, 3.3V/5V level converter for both Data and Clock lines, together with an impedance matching resistor.These features ensure maximum functionality, safety, and led strip compatibility, all in a small (54x32x18mm) 3D printable enclosure.It is fully compatible with WLED and sound reactive WLED fork.SpecificationThe 5.5x2.1mm, center-positive DC barrel jack allows MAX 17V input voltage (VDD_IN), determined by TPS62163DSG step-down converter. However, since VDD_IN is directly connected to LED strip's power supply (VDD) through a resettable fuse (PPTC), be very careful, and connect only voltage that is rated for your LED strip (usually 5V or 12V). Also, make sure that the power capabilities of your supply meets (or preferable exceeds) the expected power requirement of the LED strip.The LED strip is connected through a safety resettable fuse (PPTC) which will trip if the current draw exceeds 10A. This feature can be bypassed by closing the JP2 solder bridge on the back side of the board, but it is not recommended due to safety reasons. The main function of the fuse is to protect the module in scenarios like short circuit on the strip side. I strongly advise against running the module close to 10A. Keep in mind that even the JST SM connector, that addressable LED strips use, is officially rated only for max 3A. If you really need to power strips with higher current consumption, a safer way is to branch out the power line (VDD, GND) before the module using thicker cables, and connect them directly to the strip (power injection).When using long strips, you might experience a color shift towards the end, due to the voltage drop caused by strip's resistance.This can be solved by injecting power to the strip repeatedly every few meters (e.g. every 5m for WS2812 or every 2.5m for WS2813, SK9822, SK6812).Always make sure that you know and understand what you are doing, especially when dealing with large current. You are doing this at your own risk.edBox comes with a standard 3-wire JST SM connector soldered on VDD, DAT, and GND, for seamless connection of 3-pin addressable LED strips. To use 4-wire strips, additional CLK pin can be easily soldered. DAT has a 470Ω series resistor, and both DAT and CLK are bi-directionally level-shifted from 3.3V to 5V by TXS0102DCU, to meet recommended operating conditions for most strips.Layout

Hephaestus is the first Italian school rocketry team.Our mission is to create a functioning rocket in all its parts and to do it in the most analogous way to those that are the traditional methods for real commercial rockets.This implies that there are ground recovery, stabilization and communication systems on board.Hephaestus was created to be a scalable, replicable and modular project: in the future we hope to be able to grow and attract the attention of the public by doing things bigger and bigger.To date, the aerospace sector is still a niche and not much discussed by the general public.We want to help in our small way to give a voice to this sector and above all to young people like us who are trying to emerge.We currently do not have the funds or the capabilities necessary to carry out this project in the way we think it deserves.To date these are some examples of what we have designed and produced so far:Andromeda is an avionics computer for thrust vectoring control rockets.The teensy it mounts is able to run up to 600 MHz, ensuring great computing power for all avionics.On board it is equipped with an accelerometer and a barometer sensor, so that it can simultaneously determine which position data to send to the servos that control the direction of the motor and store important flight data on the integrated SD card and on the flash card as a backup.These data are very important because they allow debugging and troubleshooting to always improve software and hardware at each launch.It is powered by 12V, but works with just 5V. In any case, there are four different 12V outputs to power fireworks or other possible future features. I personally use these exits for parachute ejection which slow down the descent by landing the rocket safely after launch.Summing up, the card is equipped with two outputs for servomotors, an RGB LED and a buzzer that operate as status indicators and additional i2c, SPI, UART and simple 5V/GND outputs, two data saving systems (flash chip and SDcard) as well as to what I have already described.Our latest advancement is a brand new board whose purpose will be to control all security systems, launch procedures and the collection of sensitive and important data.This, based on the computing power of an Arduino Mega, exploits almost all of the available I / O to ensure that launch is within everyone's reach. In fact, we ideally plan to make all our designs public and consequently we design them also in view of the user experience of those who will have to replicate them.

My name is Sandipratama, i'm a keyboardist who interest in music producing and tech.This PCB project called "DAKON" in javanese it's mean traditional children's game. In this project i build mechanical keyboard with ortholinier or grid layout as normal keyboard and midi controller software because with the grid layout it's much more convenient for making beat like 4x4 drumpad, MIDI CC sender, macro shortcut, or just ordinary keyboard with grid layout.This design decide because the popularity of mechanical keyboard enthusiast has been increased about few years ago. I using Arduino Promicro 32u4 in this project which is capable enough to handle what i need of course and programming flexibility with ArduinoIDE or QMKfirmware builder if it's just for programing keyboard. But nowdays most of mechanical keyboard enthusiast identified mechanical keyboard just a hardware with fancy features that can be modified with pricey parts like switch, case and keycaps just for their prestige without knowing the actual capability.This design used basic 4x12 matrix keyboard wiring, and my plan using ArduinoIDE as base programmer. At the first plan i want to add Hardware Serial port with TX pinout via 3.5mm audio jack for for external midi controller purpose but i run out arduino pinout, so i just add some fancy features like RGB underglow and piezo buzzer breakout.I also had prototype with similliar purpose but just mini version with so much features like MIDI OUT port, RGB led, potentiometer support and encoder support.Thx to PCBway this mini version has been realized and work so fine for midi controller purpose and macropad.Now it's the right time to expand the mini version with bigger one !So many thank's to PCBWay for supporting hobbyist all over the world !

The goal of this project is miniature 2D LIDAR sensor featuring the EPC611 ToF image sensor. The RP2040 acts as a controller for the ToF sensor as well as for a DC motor which rotates a mirror for the ToF sensor, allowing 360 degree vision. The board has a 6 axis acclerometer + magnetometer IMU as well as 6 PWM breakouts for if someone were to want to use this as a sort of standalone robotics platform. I am considering adding an SBUS breakout as well. The board can be interfaced to a USB host (such as a raspberry PI) through a full-speed USB connection with a USB Micro B connector. Schematic The schematic consists of 5 sections: the connectors, the Voltage Regulators, the RP2040, the IMU, and the LIDAR sensor itself. ConnectorsThere are 5 connectors to the board - A SWD port, a breakout for the motor and optical encoder for the LIDAR, a SPI breakout for debugging the SPI connection between the RPI and the ToF sensor, a PWM breakout for controlling up to 6 ESCs, servos, DC Motor controllers, etc, and a USB OTG Full Speed connector with a Micro B Port. Voltage RegulatorsThere are 3 Voltage Regulators on the board, divided into two stages. The first stage takes an input voltage from the USB or from the PWM breakout and converts it to +3.3V. The second stage takes the +3.3V line and converts it to +8.5V and -10V which are used by the ToF sensor. Most of the board operates on the +3.3V line. The current consumption is variable based on the activity of the ToF sensor, but should peak at around 600-700mA and average around 400-500mA on the +3.3V line. RP2040The central processor of the device is an RP2040. It is clocked by an external 12MHz crystal oscillator and is connected to 4MB of Flash via QSPI. It is connected to the ToF sensor via SPI, connected to the IMU via I2C, has a breakout for the LIDAR motor and encoder, and 6 PWM breakouts for various motor controls. It has a USB connection which is how it can communicate to another device as well as be programmed. It can also be programmed and debugged via SWD. 6-Axis IMUThe IMU is a 6-Axis Accelerometer+Magnetometer. It is connected via I2C and sends orientation data to the RP2040, for the LIDAR to determine how it is oriented in 3D space in case it is being used on a flying robot or another robot that does not operate on just a 2D plane. LIDAR SensorThe LIDAR Sensor consists of the EPC611 ToF camera which collects depth data either as an 8x8 camera or as a single binned pixel. It is clocked via a 4MHz MEMS oscillator and sends modulated pulses to two IR LEDs which it uses to generate the pulsed IR light it uses for ToF sensing. It is connected to the RP2040 via SPI. Preliminary PCB Design The PCB is packed very tight, with all non-connector components laid out on the top side of the board for single-side assembly. There are 8 mounting holes. The large 4 are for mounting the PCB. The small 4 are for mounting the optics for the ToF sensor and LEDs.The board is a 4 layer board, with the top inner layer being the ground plane and the bottom inner layer being the 3.3V power plane. The board itself is 40mmx43mm. As a university student, I work on this project alone in my spare time. I have very little capacity for funding or manufacturing so any assistance on this project is greatly appreciated.

Who We Are We are a group of engineers designing Satellites for a very popular international competition TEKNOFEST for 2 years. We are one of the everyone's favourite team in the competition and representing Karadeniz Technical University. You can see our work in LinkedIn page. System Concept Our satellite designed to take launch in a rocket to be separated in any king of atmosphere of a planet that is investigated. The system after separation, will descend at constant speed (12 m/s) using its versatile parachute in protective shield (satellite capsule) and at predetermined altitude, the payload will also be separated from its protective capsule (container). After that, it runs the brushless engines for smooth descending and during that, it samples various scientific datas (21) from the target planet's atmosphere.Below there, you can see our whole design for competition: It has several brushless motorts to descend slowly from the altitude separated from a mid-range rocket. Our satellite has a barometer to measure altitude and temperature, a GNSS system for location, IMU sensor for inertial measurement, live-video stream capability for recording the surface of the target planet and long range communication module for telemetry transfer.Satellite Control Hardware To prove our engineering concepts and solution aspects, our team needs an evaluation board. We have designed an evaluation board before our main "Satellite Control Hardware", under PCBWay sponsorsip. The picture below illustrates us our test PCB : The evaluation board is consists of all Through-Hole components. It will be very flexible to replacing the components in case of any failure. So that, our embedded developers will be able to work on the complete board without worrying about burning them. HürSAT Satellite Team again thanks very much PCBWay for supporting our project. Here below our main Satellite Control Hardware is on the production lines of PCBWay for SMD version of the evaluation board which will take much longer time to deliver.Satellite Hardware Specs:240MHz dual-core MCU (32-bit)8mb SRAM capacity802.11.b/g/n WiFi capabilityBluetooth interface capabilityUSB interfaceMicro SD Card interface (SPI)GNSS module with hot-startAdvanced IMU sensor (4ms latency)High accuracy barometer for altitude measurements14-bit 4 channel ADC4 channel PWM output terminalsServo motor control terminal5A load switch circuit driven by D-Latch3.3VDC and 5VDC outputsBuzzer for human interfaceHere are the GERBER files of the project. So, everyone can reach and build what we have done! Enjoygithub link

I created this project Inspired by Turkish brother Emre Konca's project, Turkduino Uno. I designed AZduino-Uno as a development board for young developers. It is designed for school and university students to improve their skills. This is actually also an Arduino Uno. 20% of Azerbaijan's territory has been occupied for about 30 years. We liberated these lands in 44 days. It was a great chance to celebrate this victory and to make our students love electronics.My Youtube Channel: https://www.youtube.com/NizamiKalbaliyevMy Instagram Profile: https://www.instagram.com/Nizami.KalbaliyevThe components we use are suitable for every student, as they are both easy-to-find and inexpensive materials.I added a DFplayer to AZduino Uno. I connected DFplayer's Tx Rx pins to AZduino Uno pins 10, 11 respectively and added a 1k resistor betweenpin pin11 and Rx(DFplayer) as requested in DFplayer's manual. You can use the DFplayer by connecting an 8ohm1w speaker to the SJ1 on the AZduino Uno.I added cuttable jumpers between the pins of DFplayer and Atmega328p. If you want to disconnect Atmega328p with DFplayer, you can cut these jumpers.We would like to thank PcbWay for its unwavering support for this project!!!

Hello everyone, my name is Johan, in this document I want to present my project, which is a class D amplifier with only N channel mosfets, scalable from 25Wrms (or less) to 1250Wrms) ...! - This time, we are taking advantage of the fact that at least, here in Argentina, the IR2110 is being obtained at a good price, and that makes it possible not to go crazy with discrete mosfet drivers, and to use only N-channel mosfets ... step, the amp goes at one!Let's clarify that this is a proof of concept in which many of the desirable characteristics in high power amplifiers have been omitted, such as protections and fuses that will be left to the reader. The main objective of this project is to bring a Class D amplifier closer to those who do not have experience with this type of circuitry and one of the most important rules in its design was to simplify it as much as possible and use only common components, low cost and easy to install. get for everyone.I have specified IRFP250 as mosfets ... They are not the only possible ones ... For lower powers, much cheaper N-channel mosfets could be used. For example, if the supply voltage will never exceed +/- 20 volts, you could use the IRFZ44, or for 200Wrms over 4/8 ohms, the IRF640 ... Simply, smaller mosfets will heat more.In relation to the heatsink, really, you have to put it ... And the reason is very simple: Although this amplifier has a theoretical efficiency of 97%, at 1250Wrms, that implies 37W of dissipation in the mosfets, so they require a heatsink. However, for example, for 200Wrms output, the power dissipated in the mosfets will be 6W in each one, so a few simple clips could work well. Simply, place an aluminum foil as a heatsink ... And remember that this time, both mosfets have to be isolated from the heatsink with micas and insulating washers ... But the TIP MUST NOT be isolated, because that transistor puts the heatsink to ground to suppress noise emissionThe last issue I have left to name is the output inductor issue: It must be able to withstand the peak output current of the amplifier without saturating or burning out. Personally, I use 1mm² of section for every 4 ampere of current (that is, for 8A, I use a wire with 2mm² of section) ... Preferably, instead of using a single wire, use 2 or 3 in parallel whose section added give the required wire section. This will improve the performance of the inductor (I would use, to obtain an equivalent section of 2mm², 3 wires of 0.66mm² section put in parallel)PD1: For those who want to improve the sound even more, I recommend lowering the gate resistors as much as possible, but ... carefully ... Because if they are too low, the mosfets can start to heat up or directly burn. You have to lower the values ​​of both resistors slowly, and test if it heats up or not, using a current-limited source, and with the amplifier without load and without an audio signal.PD2: If possible, I would like to make this song a "Featured" ... There are very few super high fidelity class D amplifiers posted, and I really think this project could be a very good one for posterity, and you don't get lost in the midst of the huge number of songs that are opening up from standard class AB amplifiers or onboard, with the TDA series, which although they are really useful for beginners, do not add anything to the design technique or have nothing innovative ... Anyway, I hope it happens!: rolleyes.PD3: Thank you very much to all the people who have been talking to me lately about this topic of the class D amplifier ... Many of the things discussed were taken into account for this design ... I especially name ricardodeni, who was one of the first in trying the combination IR2110 + LM311 !! --- And there are very many more people, who to a greater or lesser extent, have collaborated .. Sorry if I do not name you all, but thank you for all the collaboration that you have selflessly given!PD4: Yes, technically, changing the mosfets for ones that are even more powerful, and with more voltage, it would be possible to easily exceed 1250Wrms. The limit of the IR2110, is +/- 250 power supply, and even, using an IR2113 (compatible pin to pin), it could be taken to + -300v. Of course, it would be necessary to change the 2n5401 transistors for mpsa92, and recalculate the resistors that dissipate power so that they do not burn out. Neither the plate nor the diagram itself would vary. Thus, as a curiosity, with that voltage of +/- 300v, over 4 ohms, 11250Wrms could be obtained ... Of course, I assume that anyone who starts to modify the values ​​to obtain such a high power knows what he is getting into, And do not ask me for advice to reach those values, because I consider them too dangerous for someone amateur to start playing with it, not to mention the source of power that would be needed!without more to say, I say goodbye, thank you very much for your attention.

Temperature and humidity using the DHT11 sensor and LCD display 1602 with an I2C module and a relevant code.Here I am going to display the temperature and humidity using the DHT11 sensor and LCD display 1602 with an I2C module and a relevant code.Now I have been struggling with this project for like hours now. But at the end I find out I did not have the correct knowledge. So people it is very important to know what you are making. In this case I recommend you to go through the page and not just copy and paste the code.Now, this project uses a DHT11 temperature and humidity sensor with the three pin but you can also use any other sensor the changes in the code should be as per the model. I have used Arduino UNO for this project.

Hello guys, my name is Dayana and I am an electronic engineer, this time I would like to share with you a project that is about a high power DC-DC buck source controlled by arduino.I decided to develop this DC - DC converter since there are many fake high power converters on the market that promise to handle many amps but at the moment they are very fragile and inconvenient.So I developed this very robust and versatile DC - DC source, to be used in any project, where it is required to handle large powers and currents that a common source would not handle, the design of this source is initially intended to be used in non-current currents. greater than 45 amps, and an input voltage of 100 V, (depending on the mosfets and diodes used).Although the idea by itself sounds very crazy, this source works at a frequency of approximately 60 kHz, which is a very considerable frequency for its dimensions, I decided to use this frequency since we can reach efficiency values ??greater than 90% very easily, we will only have to calculate the components correctly to use and put the source to work.Thanks to the current sensor incorporated in the PCB, we will be able to have complete control over the current that circulates through the output of the source, in this way we will vary the duty cycle of the source and by magic we will have a high DC - DC source. Power with current limit ideal for charging lithium batteries or any other type.Finally, I would like to give some guidelines for operation and calculations to take into account for the start-up of this source, first take into account the maximum input voltage and the maximum output current, since based on these data we will have to choose between a mosfet or another for our source, I have to say that in this source the inductor is of vital importance so as not to have a very strong ripple at the output of the source, therefore I recommend using an inductor that easily supports the maximum current output and we will prevent it from saturating and altering the values ??of the calculations made, thanks to all

It was designed as a development board for young developers.And it is designed for high school and middle school students to improve their skills.This is actually also a keychain. Football is a very popular sport in our country, and this symbol is the emblem of a very popular club in the Turkish league, this club name ise Beşiktaş. Our aim here is to make our students love electronics by taking advantage of the popularity of football. The components we use are suitable for every student, as they are both easy-to-find and inexpensive materials.On our circuit, there are leds that light up one by one, respectively, and there are two bright leds that act as flashlights in the dark.It can work for a long time only with a small battery attached to it.This company has always supported us, so thank you very much.I am waiting for your support. Thanks pcbway :)