JDY-33 Dual Mode Bluetooth Serial Port SPP SPP-C Compatible with HC-05

Model: JDY-33. The general application of JDY-33 only needs to connect 4 pins of VCC, GND, RXD, TXD. In the unconnected state, it needs to be deep sleep to send AT+SLEEP\r \n, After deep sleep, you can wake up through the falling edge of the EN pin, or through serial data.

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