e4a Bluetooth module sends data, receives data, and hardware recommends a full strategy.
Initial interface
Click to search for the BLE Bluetooth module
Send data via the test button and can receive 16 decimal data from the serial port.
BLE Bluetooth module and My Code, both tested well on BBK phones, Huawei phones, and Xiaomi phones, and the data transmission was normal. The received data length I tested 10009|3.75|9.25|6.45|1.55|1.25|21.65|1.26|1.26 sent data 0x23 normal
Note that the BLE Bluetooth module and the normal Bluetooth module are not the same thing. Please check before downloading. Check the price yourself.
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