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  • yinon's Avatar
    12-14-2021, 01:34 PM
    Hi everyone, We have recently developed a kind of simple LEDs controller (just on/off - no PWM output) using PCA9655E, some MOSFETs, and teensy 3.2 as UART to i2c bridge. The unit works as expected most of the...
    1 replies | 159 view(s)
  • yinon's Avatar
    12-01-2021, 11:31 AM
    yes, of course. I am still dealing with the same issue. the external Pullup don't solve the problem ):
    8 replies | 604 view(s)
  • yinon's Avatar
    11-23-2021, 09:26 AM
    last update : A 5.1k external pull-up resistor had solved the problem :) thanks for you're help.
    8 replies | 604 view(s)
  • yinon's Avatar
    11-23-2021, 08:54 AM
    Hi Rcarr, thanks for the well-detailed answer. I do some extra tests and set the matrix with short wires and it worked well. so it's probably a wire length issue. I am trying to figure out if the solution is on the...
    8 replies | 604 view(s)
  • yinon's Avatar
    11-22-2021, 10:14 AM
    I wrote this code to scan 24 keys matrix, it's work great with Arduino Uno but on teensy 3.2 and 3.6 I got something like "double pulsing". when I press on the 7th' key I got 6 and 7 reading , allmost same when I...
    8 replies | 604 view(s)
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I2c gpio expander config problem 12-14-2021 01:34 PM
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