Hi.
Im controlling an Adafruit Neotrellis button/led board with Teensy.40
https://learn.adafruit.com/adafruit-neotrellis 2
I have a 4 x 8 boards grid soldered together.
I have an issue with the interrupt pin.
If I load only 1 board ( thou they are soldered together) it works fine. I messured the interrupt pin voltage and get
Not button pressed 3.26 v
Button pressed between 3.10 and 3.20 v and goes back to 3.26 v
If I load 32 boards and messure the interrupt pin voltage I get
Not button pressed 3.26 v
Button pressed between 2.40 and 3.13 (mostly below 2.80) and back to 3.26v
But from time to time in this case the voltage goes down to 0.80 and stays there until I press again a few time and goes back up to 3.26v
I try PULL_UP in the code with no luck...
Any Idea?
Im controlling an Adafruit Neotrellis button/led board with Teensy.40
https://learn.adafruit.com/adafruit-neotrellis 2
I have a 4 x 8 boards grid soldered together.
I have an issue with the interrupt pin.
If I load only 1 board ( thou they are soldered together) it works fine. I messured the interrupt pin voltage and get
Not button pressed 3.26 v
Button pressed between 3.10 and 3.20 v and goes back to 3.26 v
If I load 32 boards and messure the interrupt pin voltage I get
Not button pressed 3.26 v
Button pressed between 2.40 and 3.13 (mostly below 2.80) and back to 3.26v
But from time to time in this case the voltage goes down to 0.80 and stays there until I press again a few time and goes back up to 3.26v
I try PULL_UP in the code with no luck...
Any Idea?