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WS2813 buffer
DIY Oct 26,2022
WS2813 bufferThis is a versatile buffer for WS2813 LED strip. It is a LED with strong SN74LVC2T45DCTR buffer for the serial output that allows to send serial I/O data up to few meters; it is designed for mid range serial LED strip communication.It has the same dimension of a WS2813 LED strip (16,5 x 10 mm), and it can be configured as LED pixel with strong buffer or as a simple buffer to send data.Buffer with LED configuration: JP1 solderedBuffer only configuration: JP2 and JP3 soldered
ESP32 LED 5th PCB Design Contest-Free Theme
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WS281x LED RS485 transceiver
DIY Oct 26,2022
WS281x 485This is a versatile and cofigurable RS485 TX-RX transceiver for long range serial LED strip communication.If you need to send your data to a remote LED strip, you can use one PCB as TX and one as RX, it's easy!They can also be powered from 5V to 12V so all different kind of LED strips are supported.The PCB can be configured as RX or TX by soldering the jumpers and using the right resistor:RX configuration: R2 and JP3TX configuration: R1 and JP2 soldered
5th PCB Design Contest-Free Theme LED RGB
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ESP32C3 DWIN 7 inch Display Weather Station
Useful Electronics Oct 25,2022
https://youtu.be/vfW4ydkPVy8In this video,a DIY weather station is built using ESP32C3 that is connected over WiFi through a TCP socket to OpenWeather API. ESP32C3 sends HTTP GET request every one minuet to get the current weather related information in JSON format after that the obtained data is parsed and sent the DWIN display over UART to show the obtained data on the screen.CJSON library is used for parsing JSON file that is obtained from the OpenWeather API. FreeRTOS queue is used to let th...
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Battery powered and compact design ESP32 temperature and humidity sensor
Mirko Brentari Oct 23,2022
A compact board that in the footprint of a 18650 battery cell embeds an esp8266-12, battery charger and what is needed to read a temperature and humidity sensor, in this case an DHT22, and publish them over wifi
DIY ESP8266 Home Automation
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Picoclick C3 - most advanced IOT-Button
König Oct 21,2022
The Picoclick is a tiny device which can be used as an IOT-Button. It is a one-button-device which let's you control different stuff in your smart home or the internet of things. A basic example is to toggle a light bulb by a button press. Moreover the Picoclick-C3 can be used as a mini development board, because it comes with an FPC extension port where other hardware can be connected to - even I2C is possible.The Picoclick is an ultra low power device, it only consumes 2μA of current in idle s...
5th PCB Design Contest-Next Generation Hardware ESP32 Home Automation
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ESP32 IoT Relay Control
ELECTRONOOBS Oct 20,2022
This PCB here that I call NOOBIX gives you full IOT control for anything. A lamp, a fan, your stereo speakers, your printer, anything you want. With a simple online push of a button from anywhere in the world, you can turn ON or OFF any device that works at 220V AC. This project is based on a previous tutorial where I show you how to use the ESP32 and the HTTP library in Arduino IDE. The PCB has its own voltage regulator from 220V AC to 12V, 5V and 3.3V DC, it has a solid state relay to control ...
5th PCB Design Contest-Next Generation Hardware DIY ESP32
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ESP32 BLE Macro Keyboard
ElectroPoint4u Oct 18,2022
This is a wireless macro keyboard consist of 10 cherry MX key swathes with individual backlight. It also has a rotary encoder, a 0.91" OLED display and battery management circuit. so it is also portable. Based on ESP32 microcontroller, it can communicates to a desktop or android smartphone over bluetooth. The USB type-c port can be used to program the microcontroller as well as charging the battery. Tutorial video :
IOT ESP32 Keyboard
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Home Utilities Consumption Optimizer
Electrofrank Oct 17,2022
The world is going through a period of great turmoil:Geopolitical crises, such as the Russian-Ukrainian war that is impacting everyday life to a greater or lesser degree.But also environmental crises, with the effects of global warming becoming increasingly evident in the form of destructive weather events.Macroscopic indicators of this situation are trends in Energy prices, but also the level of CO2 emissions.Never before has it become necessary to combat waste, both to reduce consumption and t...
5th PCB Design Contest-Earth Friendly Home Automation ESP32
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How to make RMS to DC Converter using IC AD736
electronicguru0007 Oct 17,2022
A True-RMS or TRMS is a type of converter which converts RMS value to equivalent DC value. Here in this tutorial, we will learn about true RMS to DC converter, how it works and how measurement methods can affect displayed results.The IC AD736 has few functional subsections like the input amplifier, full-wave rectifier (FWR), RMS core, output amplifier, and bias section. The Input amplifier is constructed with MOSFETs, so it is responsible for the high impedance of this IC.After the input am...
Arduino ESP8266 Hydrogen
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ESP32-S Development Board, in "Arduino Uno" form factor
MakerIoT2020 Oct 16,2022
UPDATE 24/06/2023:This board now has a Hardware Revision 2.0 available. It is the same board but with additional components, namely a DC barrel connector, as well as an auto reset/flash circuit - on a 6-way programming header... Routing has been optimised, to provide better temperature control on the main ESP32 Chip. See more details >> HERE <<ESP32-S in Arduino Form FactorThe ESP32-S is, at least in my opinion, one of the most versatile microcontrollers available to the Maker at thi...
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With many Samsung zFlip phones hitting the unfortunate fate of a broken folding screen, I took it as an opportunity to build my own silly phone. Taking only the minimum parts required for the phone to...
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