Number | symbol | name | Description |
1 | ANT | Antenna pin | RF signal output, directly connected to the antenna |
2 | GND | Power ground pin | Power ground, can be connected to the antenna housing shield |
3 | DO | Data output pin | When the module receives the carrier of the corresponding frequency, the pin outputs a high level; |
4 | DO | Data output pin | When the module does not receive the carrier of the corresponding frequency, this pin outputs a non-standard square wave. |
5 | GND | Power ground pin | Power ground |