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WeMos D1 R32 Uno ESP32 CH340 WiFi Development Board compatible with Arduino NodeMCU
D1 R32 features WiFi and Bluetooth BLE compatible with Arduino IDE and several UNO shields. It offers higher performance than the ESP8266 processor on NodeMCU boards.
Working voltage: 5V-12V DC.
Current: 250mA (maximum).
Minimum operating current (without WiFi): 20mA.
WiFi 802.11 b/g/n/e/i (802.11n up to 150 Mbps).
Micro USB port with CH340 serial driver.
4MB flash memory.
Clock speed: 240MHz .
Dimensions: 68mm x 53mm.
20 digital inputs/outputs (3.3V).
6 analog inputs.
KY-025 4pin Reed Switch Magnetic Sensor Module
