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Dec 17, 2017 at 18:42 vote accept CommunityBot
Dec 17, 2017 at 18:42 comment added user61421 I've managed to get it working on both a pi 3 and a pi zero w. I've noticed there's a marginal delay on the zero and I was wondering if there's a way to speed it up. Is it calculating each waveform before it sends it out? Do you know of any ways I could optimize it for a pi zero?
Nov 27, 2017 at 16:08 comment added joan I meant that the pigpio record software needs to see the identical code several times in a row before accepting it as valid. That has already happened, otherwise the record software would have given an error. You could use piscope to compare the recorded and transmitted codes and visually check they look the same. The only other consideration is the transmit power. I think I used something like 100mA for the transmitter I built. Does it work if the Pi is really close to the receiving device?
Nov 27, 2017 at 15:21 comment added user61421 How many do you mean by several? I've now gone through the recording process for the same buttons 5 times. I've checked the LED with a camera, and it's working.
Nov 27, 2017 at 8:07 comment added joan To record properly the same code has to be received several times, so it seems like the codes are well-behaved. The obvious thing to go wrong on the transmit side is using the wrong GPIO for output. Do you see the IR LED you are using flash (look through a phone camera).
Nov 27, 2017 at 3:34 comment added user61421 I used the pigpio example you provided and I was able to successfully record codes (not sure if they were the correct codes, but it had them). When I try to transmit the codes I don't get an error but I also don't get any response. I've tested the circuit with LIRC and I've checked the pin number. Any idea what could be happening?
Nov 26, 2017 at 9:28 history answered joan CC BY-SA 3.0