Hi,
I have code posted on pastebin: https://pastebin.com/jpsBRS4d
I used arduino sketch to test if matrix works, it works. But i'd like to use espidf instead arduino. My problem is that I can read only first two rows, third, fourth acts like they werent available or something...
Using basic 4x4 keypad from ebay:
If I switch row with cols I can read "1, 4", "3" acts like "A", "6" acts like "B". Dunno whats going on.. Probably mistakes with pull-ups.
I had Windows IoT demo working, when coppied code and rewritten to espidf it dont work.. Im newbie in espidf.
Thank for help.
Matrix keypad 4x4, can read only half
Re: Matrix keypad 4x4, can read only half
Try adding gpio_pad_select_gpio to your gpio init
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