HXJZ-881 Micro Power Wireless Module User’s Manual
About HXJZ-881 HXJZ-881, the Micro power wireless module, is used as the wireless data transmission in short distance. With the small size, weight and power consumption and good stability and reliability, it has the function of bi-directional data sign transmission, test and control.
receiving/transmitting the data from the interface. HXJZ-881 will automatically complete the other operations, such as transmission/receiving conversion in the air, control, etc. 10. High reliability, small and light Single chip radio- frequency integrated circuit and single chip MCU are used for lessened peripheral circuits, high reliability, and low failure rate. 11.
2.HXJZ-881 interface definition 1) User’s interface HXJZ-881 have one interface of TTL. In standard interface, the plastic socket gap upward, from left to right,1-8 pin in turn, as follows; Definition of connecting pins and connection method: Item no PIN Description User’s terminal 1 VCC +5±0.
Parameters default: Channel： 1 Interface speed rate：9600BPS Interface verify：none Speed rate in air：9600BPS Channel and frequency list Channel Frequency Channel Frequency 1 487.5072MHZ 5 490.6942MHZ 2 488.4289MHZ 6 491.1580MHZ 3 489.2329MHZ 7 491.7360MHZ 4 489.9260MHZ 8 492.
Optional Antenna: Trouble and solve ways: NO. Trouble Trouble causes and solve ways 1 No shine of Indicator light a、Power Line badness touch . b、Power is bad. c、Power line meet in reverse, or 2 No transmit or No receive 3 Bit error High rate 4 Indicator twinkling light diode of polarity protect is bad. a、Radio is badness touch with PC/terminal. b、Radio with TTL/RS232/RS485 not match terminal. c、RX frequency and TX frequency is not same.
