The board is made by ESP and belongs to the NodeMCU series, with Arduino as the core. OLED 128X64 0.96" IIC I2C SPI OLED Display Module SSD1306 Soldered Pins Arduino.
D1 Mini ESP8266 NodeMCU ESP-12F WiFi 4MB IOT Development Board wemos Geek gift
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ESP8266 D1 Mini Wemos — WiFi Dev Board (3.3V) — Arduino / ESPHome / IoT
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Case for ESP32 D1 Mini : 2 pack