Skip to main content
ESPBoards

WEMOS D1 MINI ESP32 Development Board Pinout and Technical Specifications

Code name: D1_MINI32

WEMOS D1 MINI ESP32 development board is based on esp32 microcontroller and uses xtensa architecture. This development board has a maximum CPU frequency of 240 MHz and a flash size of 4MB.


Features

  • digital IO pins
  • external interrupt pins
  • analog input pins

Connectivity

  • WiFi: 802.11 b/g/n (2.4 GHz)
  • Bluetooth: 4.2
  • WiFi: 4.2

Technical specs

Clock Speed240 MHz
Flash size4MB
Microcontrolleresp32
Architecturextensa

WEMOS D1 MINI ESP32 Pins Mapping Arduino IDE

Below you can find the WEMOS D1 MINI ESP32 pinout. This development board provides digital IO pins, out of which can be used as an external interrupt pins and as analog input pins .

PinAnalogTouchPWMOther
1TXD
2LED_BUILTIN
3RXD
5
16
17
18
19
21
22
23
26
35_VBAT
Analog - Analog input pins
Touch - Touch pins
Function - Function pins
RX / TX - Receive (RX) / Transmit (TX)
LED_BUILTIN - Built-in LED
PWM - Pulse-Width Modulation

Default Tools

Bootloader toolesptool_py
Uploader toolesptool_py
Network uploader toolesp_ota
Bootloader address0x1000
Flash modedio
Boot modedio
PSRAM type
Maximum upload size
1280 Kb
(1310720 B)
Maximum data size
320 Kb
(327680 B)

The WEMOS D1 MINI ESP32 development board by default uses esptool_py uploader tool, esp_ota network uploader tool for Over-the-air (OTA) uploads and esptool_py bootloader tool. The bootloader starts at address "0x1000". Flash mode and boot mode for WEMOS D1 MINI ESP32 development board by default is dio and dio respectively. When using Arduino IDE, the maximum sketch upload size is 1280 Kb (1310720 B) and maximum data size for variables is 320 Kb (327680 B).