Type-C Micro USB D1 Mini NodeMcu ESP8266 ESP-12F Mini NodeMCU Lua 4M Bytes WiFi Module Wireless WiFi Module for Arduino

Features & Compatibility

Technical setup notes

• ESP8266 D1 mini family with Type-C or Micro USB options. USB connector choice alone does not identify the PCB revision or its regulator/ADC divider.
• Use a known USB 5 V supply for the first test. GPIO is 3.3 V logic; do not apply 5 V to GPIO or infer a 24 V VIN rating.
• Install the ESP8266 Arduino core even if the ESP32 core is already installed. Use a board profile and pin mapping appropriate to the supplied ESP8266 board.

1. Based on ESP8266

2. Arduino compatible, programming with Arduino B IDE

3. 11 * I/0 pin

4. 1 analog input; the allowed board-pin voltage depends on the fitted ADC divider and PCB revision.

5. Support OTA online

6. Use a suitable USB 5 V supply for the initial test; a higher-voltage VIN rating has not been established for these board variants.

GPIO operates at 3.3 V logic; do not apply 5 V signals to the GPIO.

Except for D0, all I0s support interrupts, PWM, I2C, and 1-wire. The ESP8266 core must be installed separately from the ESP32 core. Select a D1 mini-compatible profile only after checking the actual PCB and upload configuration.