Warning!
Current Wemos PRO batch does not work when powered from 5V pin. As workaround You can replace protection diode with jumper, but do this only if You won’t be using USB and power via 5V pin.
If You plan to power it via USB - it will work perfectly OK.
Wemos D1 mini Pro - more powerful version of D1 mini
ESP8266 is a very popular WiFi enabled microcontroller. Thanks to very attractive price and huge possibilities quickly became a very popular choice - especially in domain of home automation. However bare ESP8266 is a bit tricky for beginners. It requires stable power supply, and sophisticated programming method. Wemos D1 mini solves all those inconveniences. Basically it’s very similar to NodeMCU module. The main difference is size.
Wemos D1 module it’s a small board with ESP8266EX chip. On board there is also USB-UART converter (popular CP2104). Because of that, all you need to start programming is simple USB cable.
Wemos D1 provides 9 GPIO ports with PWM, I2C, SPI and 1-Wire support. Thanks to 3.3V LDO module can be powered directly from USB port via microUSB power supply.
They are 3 basic methods to use Wemos. AT commands, LUA programming language with NodeMCU firmware and simplest and our favorite Arduino IDE.
Module version v1.1.0
Specification:
Module version v1.1.0
ESP8266EX chip
Ceramic 3dB antenna
U.FL (IPX) antenna socket
Flash: 16MB
Wi-Fi in standard 802.11 b/g/n
WiFi modes: AP (Access Point), STA (Standalone), AP+STA
