LOLIN(WEMOS) D1 mini (clone)
Popular clone of the D1 Mini ESP8266 board - budget-friendly and great for hobbyist Wi-Fi projects.
34.2 × 25.6 mm
ESP8266
MCU
160MHz
clock
4MB
flash
~80KB
SRAM
17· 1 ADC
GPIO
Wi-Fi
radio
Pinout
Getting started
flash your first firmware in ~2 minutes1
Connect over USB
Serial chip: CH340. Not detected? Hold BOOT while plugging in.
2
Flash with your tool
Arduino IDE, PlatformIO, ESPHome or esptool - copy the settings on the right.
3
Verify it runs
The blink example uses GPIO8 - swap for your board's LED pin if different.
Board: Esp8266 Wemos D1mini
Flash Size: 4 MB
Upload Speed: 921600
// blink
pinMode(8, OUTPUT);
digitalWrite(8, LOW); // on (often inverted)[env:d1_mini_clone]
platform = espressif32
board = esp32dev
framework = arduino
monitor_speed = 115200
upload_speed = 921600esp32:
board: esp32dev
variant: d1_mini
framework:
type: esp-idf
# blink - GPIO8
output:
- platform: gpio
pin: 8
id: led_out
light:
- platform: binary
name: "LED"
output: led_outesptool.py --chip esp8266 --port /dev/ttyACM0 \
write_flash 0x0 firmware.binSpecifications
ESP8266 · 34.2 × 25.6 mmCompute
MCU
ESP8266
Clock
160 MHz
SRAM · Flash
~80 KB · 4 MB
Radio
Wi-Fi
802.11 b/g/n
Bluetooth
-
Antenna
PCB
I/O
GPIO · ADC
17 · 1
UART · I²C · SPI
2 · 1 · 2
PWM
-
Power
USB
Micro-USB
Serial
CH340
Boot address
0x0000
Flashing
Upload · OTA
esptool · esp_ota
Flash · Boot mode
- · -
Sketch · Data
- · 80 KB
34.2 × 25.6 mm · pin pitch 2.54 mm
The LOLIN(WEMOS) D1 mini (clone) uses esptool for firmware uploads, esp_ota for over-the-air (OTA) updates.
About this board
The WeMos D1 mini clone (also written as D1 mini clone or LOLIN D1 mini clone) is a budget ESP8266 (ESP-8266EX) development board in the compact D1-mini form factor. Clones typically use a CH340 USB-to-serial chip with 4 MB of flash and expose around 11 digital IO plus 1 analog input, and work with standard D1 mini shields. Since these are third-party copies, the USB chip and build quality can vary between sellers, making it a cheap option for hobbyist Wi-Fi projects. In this guide, you'll find the WeMos D1 mini pinout, datasheet, technical specs, and setup instructions.
Resources
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