| 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 mandatory) |
433 MHz Module Specifications:
- Wireless (RF) Simplex Transmitter and Receiver
- Transmitter Operating Voltage: +5V only
- Transmitter Operating current: 9mA to 40mA
- Operating frequency: 433 MHz
- Transmission Distance: 3 meters (without antenna) to 100 meters (maximum)
- Modulating Technique: ASK (Amplitude shift keying)
- Data Transmission speed: 10Kbps
- Circuit type: Saw resonator
- Low cost and small package