| ??? 09/04/12 09:14 Read: times |
#188225 - How effective is the 433MHz Responding to: ???'s previous message |
Those 433MHz modules are fairly cheap. The 2.4GHz NRF24L01+ modules are even cheaper.
In theory, 433MHz should give a better range. However any RF comms requires a lot or error detection / correction for a reliable link. So as well as the Manchester encoding, you need an extensive software layer. The NRF24L01+ (and the 8051 versions) handles the channel, pipe, CRC, ACK, power, ... In practical terms, which would be more reliable ? < 20m in a cluttered office < 20m in a cluttered factory floor. < 100m in a clear field. David. |
| 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 |