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RedGrittyBrick
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2 votes
2 answers
189 views

Unwanted ghosting with charlieplexed LEDs

1 vote
2 answers
85 views

Level shifter with diode - not pulling to zero

1 vote
2 answers
1k views

Using Keyboard library for ISO-UK layout

0 votes
1 answer
453 views

Using the LED pin for input

0 votes
1 answer
250 views

How does supply voltage affect `analogRead()` on AVR-based microcontrollers?