SoliForum - 3D Printing Community — Filament chip resetter - LEDs not behaving as expected

Re: Filament chip resetter - LEDs not behaving as expected

2014-08-19T19:38:42Z

Ok, I've finally got it working properly.
After studying the blink sketch and comparing it to the resetter sketch, I noticed this line of code in the blink sketch which isn't present in the resetter sketch .... pinMode(13, OUTPUT)
That line apparently initializes pin 13 as a digital output pin.
Not sure if this only applies to the Arduino UNO R3 but it certainly solved the problem with mine.

Re: Filament chip resetter - LEDs not behaving as expected

2014-08-18T18:52:20Z

Thanks for the reply.
I have the same problem either by powering with USB or with a battery.
The only way the green LED functions as it should during the sketch is when connected by USB and either I start the serial monitor in the Arduino software or if I upload the sketch again.
It's as if the sketch is not running from the start if I disconnect then reconnect the power to the UNO.

Edit : just noticed that the green LED flashes if I connect the Arduino to the laptop while in sleep mode then turn the laptop on, strange.
The Arduino is an UNO R3 in case that makes any difference.

Re: Filament chip resetter - LEDs not behaving as expected

2014-08-18T18:35:56Z

How are you powering the UNO when disconnected? If it works when plugged into USB, your power supply is likely the issue.

Filament chip resetter - LEDs not behaving as expected

2014-08-18T07:22:04Z

I made a resetter with an Arduino UNO and it does reset the chip but the LEDs don't behave as per the instructions.
Instead, I just get 2 solid red LEDs before and after resetting the chip so there is no way of knowing if it's reset successfully.
The first time the sketch runs after uploading, I get a flashing green LED (TX) which goes off once the chip is reset but after that I just get the 2 solid red LEDs, even after powering the UNO off and on again.
If I connect the UNO to my laptop and turn on the serial monitor, the greed LED flashes again and goes off once the chip resets.
I followed the instructions for the resetter to the letter but the LEDs just don't seem to work as advertised,
Hoping someone with more experience with Arduino can help.