NodeMCU

2 devices
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LOLIN D1 Mini V3

Dev Board
LOLIN D1 Mini V3

Compact WiFi development board based on the ESP8266-12F module. Features 4 MB flash, 11 digital I/O pins, Micro-USB, and a rich shield ecosystem. One of the most popular boards for IoT projects.

ESP826664 KB4MB11 GPIOWiFi WiFi 4 (2.4 GHz)
IoTHome AutomationWireless Sensor NetworksPrototyping
~$4View

Wemos D1 Mini (ESP8266)

Dev Board
Wemos D1 Mini (ESP8266)

Compact ESP8266-based WiFi development board with 4MB flash, 11 digital I/O pins, micro-USB, and a rich shield ecosystem. The most popular board for Tasmota and ESPHome DIY home automation projects.

ESP8266EX80KB SRAM4MB11 digital + 1 analog GPIOWiFi 802.11 b/g/nBLE none
Home AutomationIot Sensor NodeMqtt BridgeSmart Lighting
~$4View

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Development Board4MB Flash