Bad IR range about 1m


Hi, I have noticed that I have about 1m range when I use IR nodemcu. I have tried different IR diodes and still the same. I have use setup based on openMqttGateway github page for IR receive and send. Any one else having issue with it?
Thank You


Hi, my range is around 3 meters, if you take a look to this thread here is another implementation example :


I easily get about 4 meters… I only use a 2N2222A without any resistor… Works just fine…


Is this on 5 volt or 3 volt or a combination of both ?


Its on 3.3 v only, simply connecting it to pin and power via transistor.


Thank you very much for the information.