Here we have a microcontroller (PIC12F675) driven 433Mhz AM/ASK RF transmitter with “low” battery status indicator. The PIC microcontroller feeds/drives the RF transmitter with a Serial output signal which is then modulated (AM/ASK) and broadcast into the air. A matching 4333Mhz receiver module (another project coming soon) can then be used to receive and demodulate the Serial signal and feed it to another distant microcontroller, effectively creating a wireless communication channel between the two microcontrollers.
| Semiconductors | Resistors (0.5W, 1%) | Capacitors | Other |
|---|---|---|---|
| 1 x 1N4001 1 x 1N746 1 x LED (3mm) 1 x LM7805 1 x LM358 1 x PIC12F675 | 1 x 550 1 x 3.2k 1 x 3.9k 2 x 10k | 2 x 18pF (ceramic) 3 x 100nF (ceramic) | 1 x 9V Battery 1 x Push Button 1 x 3C88 433Mhz Transmitter 1 x RF Choke 1 x 16Mhz crystal |
More details coming soon!
