mirrors/qmk_firmware
1
0
Fork 1
mirror of https://github.com/qmk/qmk_firmware synced 2024-11-13 07:25:44 +00:00
Code Issues Projects Releases Packages Wiki Activity

Merge remote-tracking branch 'origin/master' into develop

Browse source
This commit is contained in:
QMK Bot 2021-05-06 18:17:55 +00:00
commit c820a5732c
1 changed files with 17 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

17
docs/feature_encoders.md
View file

@ -81,3 +81,20 @@ void encoder_update_user(uint8_t index, bool clockwise) {
## Hardware
The A an B lines of the encoders should be wired directly to the MCU, and the C/common lines should be wired to ground.
## Multiple Encoders
Multiple encoders may share pins so long as each encoder has a distinct pair of pins.
For example you can support two encoders using only 3 pins like this
```
#define ENCODERS_PAD_A { B1, B1 }
#define ENCODERS_PAD_B { B2, B3 }
```
You could even support three encoders using only three pins (one per encoder) however in this configuration, rotating two encoders which share pins simultaneously will often generate incorrect output. For example:
```
#define ENCODERS_PAD_A { B1, B1, B2 }
#define ENCODERS_PAD_B { B2, B3, B3 }
```
Here rotating Encoder 0 `B1 B2` and Encoder 1 `B1 B3` could be interpreted as rotating Encoder 2 `B2 B3` or `B3 B2` depending on the timing. This may still be a useful configuration depending on your use case