Receiver Specifications
| Detail | Specification |
|---|---|
| Product Model | XD-RF-5V |
| Operating voltage | 5V |
| Quiescent Current | 4 mA |
| Receiving frequency | 433.92MHZ |
| Receiver sensitivity | -105DB |
Transmitter Specifications
| Detail | Specification |
|---|---|
| Product Model | XD-FST |
| Launch distance | 20-200 meters (different voltage, different results) |
| Operating voltage | 3.5-12V |
| Operating mode | AM |
| Transfer rate | 4KB / S |
| Transmitting power | 10mW |
| Transmitting frequency | 433M |
| Pinout from left → right | DATA; VCC; GND |
Antenna
Length should be cut to a 1/2 to a 1/4 of the wavelength. Since our wavelength is 69.24 cm. A 1/4 of that would be 17.31 cm. The antenna can be coiled to make it shorter.
How does it work?
Our RF signal will use Amplitude Shift Keying.
A digital 1 turns the carrier on while a digital 0 turns tit off.
Reference
| Reference | URL |
|---|---|
| Spec Sheet | http://www.mantech.co.za/Datasheets/Products/433Mhz_RF-TX&RX.pdf |
| Complete Guide for RF 433MHz Transmitter/Receiver Module With Arduino | https://randomnerdtutorials.com/rf-433mhz-transmitter-receiver-module-with-arduino/ |
| Using Inexpensive 433 MHz RF Modules with Arduino | https://www.youtube.com/watch?v=b5C9SPVlU4U |
| Radio Head Library | http://www.airspayce.com/mikem/arduino/RadioHead/ |
| RF Sniffer | https://www.electroschematics.com/13682/433mhz-rf-sniffer/ |
| RC Switch Library | https://github.com/sui77/rc-switch |