... ATC-863-S1wireless digital transmission RF module offers standard RS232 and UART/TTL level interfaces for direct connection with computers,ATC- ... upper layer protocols, which shall ensure that only one wireless module in the communication network is in the transmitting state ... 00~433.30MHzISM frequency range, need not apply for frequency pint 7,Micro-power transmission, maximum 100mW 8,Equipped with 50 ...