Timeline for 434 RF Transmitter and Receiver for distance measurement problem
Current License: CC BY-SA 3.0
6 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Dec 2, 2020 at 13:16 | comment | added | boomkin | I don't know why I haven't accepted this answer before. It was a very old project and I do remember that making a sensor using an RF receiver is not a good idea. The automatic gain controller (AGC) was a significant problem. You would want to use probably something else but that wasn't available for me back then in an university setting. | |
| Dec 2, 2020 at 13:14 | vote | accept | boomkin | ||
| Mar 11, 2016 at 20:55 | comment | added | Gee Bee | I found that delays are surprisingly precise. However, you have to have some mechanism to get the rising edge of your pulse first. For that, you either need a simple loop which checks for the pin state with digitalRead, and once a rising edge is found, you can start timing. But, aren't you planned to read the analog value on pin 3 of the module? | |
| Mar 11, 2016 at 20:09 | comment | added | boomkin | We got around the problem today by sending 2ms pulses and 100ms gaps. This seems to solve the problem on the scope level. The thing is that our Arduino delays seem to be not precise enough to read the 2ms pulse in the right time, but that's another problem. | |
| Mar 11, 2016 at 2:00 | review | First posts | |||
| Mar 11, 2016 at 16:49 | |||||
| Mar 11, 2016 at 1:56 | history | answered | Gee Bee | CC BY-SA 3.0 |