3000 meters sx1278 low power consumption 900mhz---931mhz lora module for lora meters
rf-star rf-92uhup module is a lora spread spectrum module based on the semtech sx1278 chip. wireless serial port transmission module (uart), 3.3v ttl level output. working frequency band 900mhz---931mhz. compared with traditional radio frequency technology, lora spread spectrum technology has the characteristics of concentrated power density, strong anti-interference ability, strong confidentiality and longer transmission distance. it meets battery power requirements and suitable for applications with ultra-low power consumption.
| pin no | name | type | description |
| 1 | pb0 | i/o | hanging. |
| 2 | pb1 | i/o | hanging. |
| 3 | pb2 | i/o | hanging. |
| 4 | 3v3_mcu | i/o | power supply pin when the program loading, hanging. |
| 5 | swim_mcu | i/o | swim pin when the program loading, hanging. |
| 6 | gnd | p | ground. |
| 7 | res_mcu | i | reset pin, hanging. |
| 8 | gnd | p | power ground. |
| 9 | vcc | p | power supply, range from 3.3v to 5.2v. |
| 10 | en | o | the serial port is pulled high before sending data and pulled low when completed.
wake up the pin periodically, pull up when waking up.when the module sends data, it is
pulled high and pulled low when completed. |
| 11 | txd | o | uart tx signal. |
| 12 | rxd | i | uart rx signal. |
| 13 | s0 | i | cooperate with s1 to determine the module’s working mode.
(no hanging, if no ground is used.) |
| 14 | s1 | i | cooperate with s0 to determine the module’s working mode.
(no hanging, if no ground is used.) |
| 15 | ant | io | antenna port. |
| 16 | gnd | p | ground |
| 17 | gnd | p | ground |
| 18 | gnd | p | ground |
