Wireless Transmitter Modules allow your Arduino to wirelessly comunicate with other arduinos, or with radio frequency (RF) controlled devices that operate in the same frequency (433Mhz in this case). They work in pairs, meaning you need both a receiver and a transmitter to comunicate with each other. The receiver has 4 pins, but we actually use 3 of them: GND (Ground), VCC (5V) and one DATA pin.
- Working voltage: 3V～12V
- Working current: max≤40mA (12V), min≤9mA(3V)
- Resonance mode: sound wave resonance (SAW)
- Modulation mode: ASK /OOK
- Working frequency: 433MHz, customized frequency is available.
- Transmission power: 25mW (315MHz at 12V)
- Frequency error: + 150kHz (max)
- Velocity: ≤10Kbps
- Self-owned codes: negative
- Size: 19mm x 19mm x 5mm
- How to Interface With RF Transmitter and Receiver(*Note that in the link attached, a RF transmitter type 315MHz is used instead of type 433MHz. However, no worries, the link attached above is applicable to both RF transmitter type 315MHz and 433Mhz)