9/26/2023 0 Comments Virtual wire library arduinoattained distances of 20 meters through walls which is a good distance with cheap hardware. Are there even better protocols out there? This is an interesting experiment which shows that the protocol used on the media, in this case simple continuous wave RF, has a large effect on the transmission of data. He maxed out at a throughput of around 800 bytes per second. He found that sending 1200 bps from a USART just worked under good conditions - resulting in 83 bytes per second.Ĭhanging up to a long-short, pulse-period protocol, where a 1 and 0 are sent for 150 and 100 usec respectively, got him much better results. At higher frequencies the RX couldn’t maintain the 50% carrier on. first used 50% duty cycle square waves to characterize how well the RX followed the TX. All the TX does is turn the carrier on and off and the RX output reports the carrier status. These modules have pins for power and antenna, transmit input (TX) for the transmitter, and receiver output (RX) for the receiver.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |