Function introduction: 1.Power supply output: You can supply power to the microcontroller system through this module, which is convenient for debugging. 5V-500mA or 3. 3V- 100mA.(3.3V and +5V Compatible: This product supports 3.3V voltage.) 2.Overcurrent protection: The onboard resettable fuse will not damage the circuit board or computer even if the positive and negative poles are short-circuited. If there is a short circuit or the current exceeds 500mA, the fuse will automatically open. When the circuit returns to a non-short circuit state, the fuse will return to normal. 3.Transceiver indicator: When there is data on the sending line or the receiving line of the serial port, the transceiver indicator on the board will light up, which is convenient for debugging. 4.
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