MINI ProtoBoard 0.66" OLED 1CH Relay Node Mcu mini SD Battery Shield WeMos D1
&1. WeMos D1 ProtoBoard Shield formini double side perf board for Arduino &2. Screen Size: 64x48 pixels (0.66” Across) Operating Voltage: 3.3V Driver IC: SSD1306 Interface: IIC(I2C) IIC Address: 0x3C or 0x3D Warning: all I/O are designed to be 3.3V compliant only &3. You can use D1 mini without usb cable, it's really wireless now. Put D1 mini anywhere, using this battery shield and a lithium Battery. Boost, just connect lithium Battery to this shield, power supply for the entire D1 mini system. Charging, when the battery run out, you do not need to unplug the battery, just using usb port to charging. 1. Connect to lithium Battery (normal 3.3-4.2V) 2. Charging port (normal 5V) 3. Green LED, lights when charging is completed 4. Red LED, lights when charging &4. Brand Name: We.
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