Introduction - If you have any usage issues, please Google them yourself
A7139 is based on A7139 wireless transceiver chip design, is a complete, compact, low power wireless transceiver module. A7139 is a ISM band wireless transceiver chip, the main set for the 315/433/470/868/915/MHzISM/SRD frequency band, the maximum output power up to 20dBm, the maximum transmission rate of 250Kbps. Users do not need in-depth understanding of RF circuit design, you can use