Mr RB
Well-Known Member
Hi, these crude carrier-only type RF modules can be bought very cheaply now from a number of online suppliers. (usually 433 MHz and 315 MHz modules).
I did some testing of the modules and show how to use them for simple USART comms between micro-micro or micro-PC USB.
I also tested the burst times and recover times etc, and tested transmitting a low frequency for people who might want to use these modules without microcontrollers.
**broken link removed**
This kind of thing comes up from time to time on the forum, and although there are quite a few online projects using these modules those projects are usually pretty sketchy, usually just a schematic and some code.
I've tested the modules a little bit more indepth, and hopefully this may be of use to others.
Also I show a simple new data protocol to get much higher speed data transfer (and more data reliability). Source code is provided for that in C.
The project can be seen here;
https://www.romanblack.com/RF/cheapRFmodules.htm
I did some testing of the modules and show how to use them for simple USART comms between micro-micro or micro-PC USB.
I also tested the burst times and recover times etc, and tested transmitting a low frequency for people who might want to use these modules without microcontrollers.
**broken link removed**
This kind of thing comes up from time to time on the forum, and although there are quite a few online projects using these modules those projects are usually pretty sketchy, usually just a schematic and some code.
I've tested the modules a little bit more indepth, and hopefully this may be of use to others.
Also I show a simple new data protocol to get much higher speed data transfer (and more data reliability). Source code is provided for that in C.
The project can be seen here;
https://www.romanblack.com/RF/cheapRFmodules.htm