By connecting capacitors and inductors in series or in parallel, the tolerance and reactance of the transmission line can be changed, the impedance matching device can affect the power level, and devi
The BM1021 small package is pin-compatible with BM77 and BM78, and software compatible. It complies with the Bluetooth 4.1 protocol standard. It also supports Bluetooth 3.0 mode (BR/EDR, SPP protocol)
[i=s]This post was last edited by dcexpert on 2015-7-2 10:07[/i] I saw it on my way to work. If it hadn't been disassembled due to a malfunction, it would have looked like a water tank or solar water