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geekhack Community => Keyboards => Topic started by: zer09 on Sat, 26 August 2017, 06:11:00
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Hello I am existed, I will try to make my first custom keyboard :p. and I am sourcing for parts now.
I just want to ask if the Pro Microhttps://www.aliexpress.com/item/ATmega32U4-5V-16MHz-Module-New-Pro-Micro-for-arduino-with-2-row-pin-header-For-Leonardo/32708975582.html (https://www.aliexpress.com/item/ATmega32U4-5V-16MHz-Module-New-Pro-Micro-for-arduino-with-2-row-pin-header-For-Leonardo/32708975582.html) can handle 5 x 10 matrix? and also if it is possible to add some LED indicator? and can i use QMK for it?
That a quite a lot of question, but I will appreciate for any help will come.
Thank you.
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The pro micro has 18 usable pins. So it could handle the 5x10 matrix you would want since it will only use 15 pins. As for the LED indicator, i have no prior experience adding one. Try searching the forums for info on adding LED indicators. QMK will work fine with the pro micro.
Sent from my SM-G935F using Tapatalk
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and also if it is possible to add some LED indicator?
LED indicators usually require a dedicated pin.
and can i use QMK for it?
Being the Pro Micro an Atmel ATMega32u4 based board, you surely can use QMK.
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The LEDs are usually put on the PWM-capable pins on port B (PB5, PB6, PB7). PB7 is not available on the Pro Micro. You should also connect each LEDs in series with a resistor.
BTW. Arduino has a werd pin-numbering that does not correspond to the actual port and bit. Do check Deskthority Wiki page on Arduino Pro Micro (https://deskthority.net/wiki/Arduino_Pro_Micro) for a chart. There is some other useful info there as well.
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Thank you so much for the replies.