When MCU and 3.3V device module is connected 5V or 3.3V TTL level mutual transfer is very convenient compatible with the bread plate. Can be directly used and put on the bread board.
Specifications:
- Power input: 3.3V or 5V DC.
- Pins: GND, VCC, SCL, SDA.
- Width: 12 mm.
- Length: 15 mm.
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