i am trying to copy an IR signal from a remote for a project. I noticed that the data i am recieving from my TSOP38238 is different from the what the remote is transmitting. To show my problem here is a picture of a Oscilloscope.
The blue line is probed from the output pin of the TSOP38238 while the yellow line is probed from the positive LED pin of the remote.
If you noticed the one that i underlined in red, it would seems that TSOP was not able to detect these 4 burst. This does not happen consistently sometimes it would miss 1,2, or 3 times and i am getting a very low chance it getting the correct signal perfectly.
In the picture the circuit used is fairly straight forward. Using an arduino as a power supply:
- 5v -> TSOP Vcc
- GND -> TSOP GND
I had not connected the TSOP OUT pin to anything yet except for the oscilloscope probe. I have also calculated that the remote's burst is around 38 khz.
I will be doing this to a fair amount of buttons and it would be highly inefficient to keep repeating over and over until it gets it right. I also don't have 24/7 access to this oscilloscope to check.
So what should i do to reduce or completely remove these errors. What is causing it? Is the TSOP38238 just a bad reciever? Are there better IR Reciever module alternatives that are available?