CSC
July 21, 2016, 11:00am
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I built a simple remote as per the post below and integrate with SmartThings. Now my Samsung tv also 2015 model controllable from SmartThings & Amazon echo
Using the NodeMCU with the Arduino IDE we can have a simple infrared device in SmartThings. I am using TSAL6100 and TSAL6400 high quality LEDs. The NodeMCU can have either 2 or 3 IR LEDs connected to it in series.
If using 2 IR LEDs, feel free to use the IRremoteESP8266 code sample . In that folder, you will also find wiring pictures for reference. For longer distance like 11-12 feet, I had to remove even the lowest resistor I had which was 27ohms. So no resistor for this wiring technique otherwise the IR distance goes down to 9-10 feet.
For wiring 3 IR LEDs for higher output and using 5 volts. As of IRremoteESP8266 version 2.0 (around July 1st of 2017), the authors of the library granted my feature request and now the signal can be REVERSED and the ground signal will be sent to the pin r…