| No: | Pin Name | Description |
| 1 | Vcc | Power supply (+5V only) |
| 2 | Data | Data to be transmitted is sent to this pin |
| 3 | Ground | Connected to the ground of the circuit |
| 4 | Antenna | Solder wire/antenna to improve range (not |
| No: | Pin Name | Description |
| 1 | Vcc | Power supply (+5V only) |
| 2 | Data | Data to be transmitted is sent to this pin |
| 3 | Ground | Connected to the ground of the circuit |
| 4 | Antenna | Solder wire/antenna to improve range (not |