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(pack of 3 )This D1 mini module is a mini WIFI board based on ESP-8266EX.
11XI / O pin;1XADC pin (input 0-3.3V);Support OTA on line
Onboard 5V 1A switching power supply (maximum input 24V)
Mini WIFI Development Board,4M bytes.
5V 1A switching power supply (switching power supply)onboard
Specification: Main Chip: ESP8266 CH340G. WIFI Development Board, 4M bytes. supported (except D0). Support OTA on line. 1 Micro USB connection. 1 analog input (3.3V max input). 5V 1A switching power supply onboard. 11 digital input/output pins, all pins have interrupt/pwm/I2C/one-wire and a micro-USB connection.Esp8266 D1 , it is a mini NodeMcu Lua WiFi board based on ESP-8266EX. 11 digital input/output pins, all pins have interrupt/pwm/I2C/one-wire. ESP8266 has I/O Pin. A great set of tools to develop ESP8266. Package: 3PCS ESP8266 ESP-12 ESP-12F NodeMcu D1 Module WeMos Lua 4M Bytes WLAN WiFi Internet Development