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LOLIN(WEMOS) D1 R1

LOLIN(WEMOS) D1 R1

ESP8266 development board with an adruino UNO formfactor.
Product has been retired and replaced with WEMOS D1 R2.

Manufacturer(s) Lolin
Used chip ESP8266EX
Flash 4 (MB)
Total nr of pins 11
Programmable pins 11
Antenna PCB Antenna


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Other contributors (8)


Christiaan Broeders

2021-01-15 22:11:14
Updated text

Christiaan Broeders

2021-01-15 22:07:56
Updated img_org

Christiaan Broeders

2021-01-15 22:07:56
Updated img_th

Used chip


ESP8266EX

ESP8266EX
ESP8266EX has 17 GPIO pins which can be assigned to various functions by programming the appropriate registers. Each GPIO can be configured with internal pull-up or pull-down,...

Arduino board settings

Board name:
WeMos D1 R1

Flash size:
  • 4MB (32Mb)

Partition scheme:
  • 4MB (SPIFFS(FS) 2MB OTA:~1019KB)
  • 4MB (SPIFFS(FS) 3MB OTA:~512KB)
  • 4MB (SPIFFS(FS) 1MB OTA:~1019KB)