| ??? 09/04/12 05:26 Read: times |
#188221 - Are You Willing.... Responding to: ???'s previous message |
Are you willing to drop the HT12E and HT12D parts from your design?
It is possible to simply drive the 433MHz transmitter with a port pin that is modulated by MCU code and then decode the output from the 433MHz receiver that is connected in such manner to generate two interrupts to the target MCU. One interrupt generates off the rising edges of the received signal and the other interrupt generates off the falling edge of the received signal. A successful transfer scheme like this should have the transmitted signal encoded with a Manchester pattern so that the average signal level has no net DC bias. With the typical low cost 433MHz transmitter and receivers that I have used there has been good success of sending data at rates of 500 bps over respectible distances of up to 150 feet or more. Michael Karas |
| Topic | Author | Date |
| sample source code 433Mhz rf remote C soure code | 01/01/70 00:00 | |
| Which RF module are you using? ... provide a link, please | 01/01/70 00:00 | |
| Eh?? | 01/01/70 00:00 | |
| RF remote | 01/01/70 00:00 | |
| Are You Willing.... | 01/01/70 00:00 | |
| A Manchester Modulation Scheme | 01/01/70 00:00 | |
| Manchester RF Receiver | 01/01/70 00:00 | |
| Manchester RF Transmitter | 01/01/70 00:00 | |
| How effective is the 433MHz | 01/01/70 00:00 | |
| Half Duplex | 01/01/70 00:00 | |
| Where's the link to the datasheet? | 01/01/70 00:00 | |
| please fined teh atatched zip | 01/01/70 00:00 | |
| Please provide access to your C: drive | 01/01/70 00:00 | |
Hacking activated | 01/01/70 00:00 |