davdev

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• analogWrite with frequency on NodeMCU / ESP8266

  @davdev started

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  @opichals replied
• analogWrite with frequency on NodeMCU / ESP8266

  in ESP8266 • 8 years, 3 months

  

  Thanks for the quick reply, although that's a bit of a letdown, your announcement sounds promising ;)
  I'll definitely give it a shot, since I really like the JS programming approach.

• analogWrite with frequency on NodeMCU / ESP8266

  in ESP8266 • 8 years, 3 months

  

  Hey folks,

  I have just received two NodeMCU boards and thanks to all the tutorials and great resources getting started with Espruino was a piece of cake - thank all of you for your efforts!

  I've managed to read IR codes sent out by various remotes using the IRReceiver module and I would like to replay them using the board and an IR LED.
  Unfortunately, however, (as it seems to me) I haven't been able to do so using analogWrite with a 38kHz frequency and digitalPulse. If I understand correctly, this is due to the lack of PWM support in Espruino for ESP8266, am I right? Although I've been using platforms like the Raspberry Pi etc. for several years, I'm quite new to the "low level stuff" and I'd just like to know, whether I got my head around this correctly.

  I guess due to Javascript's event loop nature and the required accuracy a pure JS implementation is not feasible, right?

  Possibly related (?): PWM? Anyone ever get it working? Even via peek/poke directly at control registers?

  Thanks in advance!