WeMos D1 R32 ESP32 4Mb Development Board WiFi Bluetooth Dual Core Arduino Uno R3 format (OT108-B64)

An ESP32 in an Arduino Uno R3 format. Ideal if you want to use existing shields on the ESP32 D1 R32. The ESP32 development board is ideal for IoT (Internet Of Things) projects because, unlike an Arduino Uno R3, it has on board WiFi and Bluetooth. Simply programmable via the Arduino IDE. Watch the Youtube video above for the installation of that board in the Arduino IDE. (This works the same way as the smaller ESP32 boards). Connection is micro USB. This ESP32 board has: 18 Analog-to-Digital Converter (ADC) channels 3 SPI interfaces 3 UART interfaces 2 I2C interfaces 16 PWM output channels 2 Digital-to-Analog Converters (DAC) 2 I2S interfaces 10 Capacitive sensing GPIOs The nice thing about this board is that you can use it in several ways with regard to WiFi communication. As a mini access point As a WiFi client As a web server Peer-to-peer with ESP Now We would like to explain the latter. ESP NOW is a technology that makes it possible to have the modules communicate directly with each other via their MAC address. In addition, there is also a message back whether the data has been received, which allows for a good check to be carried out whether messages arrive and you can validate this. With ESP Now you can work very modularly and it is also extremely fast. This way you can run your program on one ESP32 while the other ESP32 boards only respond and act as an extension of your GPIO pins.1 ESP32 can communicate with up to 20 other boards.A good explanation of ESP NOW by Andreas Spiess can be found here: https://www.youtube.com/watchv=6NsBN42B80QDimensionsLength: 6.83cmWidth: 5.33cmHeight: 1.5cm