The Whadda WPB107 NodeMcu is an open-source firmware and development kit that helps you to prototype your IoT product within a few Lua script lines. * Low-cost WiFi solution programmable with the Lua scripting language * On-board USB-serial adaptor * PCB antenna (no external antenna required) * 10 GPIO pins, each GPIO can be PWM, I2C, 1-wire * Breadboard compatible * Powered via microB USB * Chipset: ESP8266 * General purpose IO: GPIO 10 * Operating voltage: 5 VDC (via USB) * Dimensions: 5.8 x 3.2 x 1.2 cm * Weight: 12 g https://elecena.pl/product/27149360/whadda-wpb107-nodemcu-v2-lua-based-esp8266-development-board 2024-11-06 https://elecena.pl/product/27149360/whadda-wpb107-nodemcu-v2-lua-based-esp8266-development-board 2025-02-06