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rpi-rotary-encoder-and-button-lib

https://github.com/daniel-falk/rpi-rotary-encoder-and-button-lib.git

Raspberry Pi interface panel object

Python library to make a simple and effective interface for a control panel built with push buttons and rotary encoders. Designed for the Raspberry Pi and uses pigpio daemon.

Generic setup

Its easy to get going

  • Create an InterfacePanel object
  • Add buttons and rotary encoders using add_button and add_rotary_encoder methods
  • Sit back and relax, when a user interacts you will get a callback

See example.py

Powerfull with features

  • Uses interrupts to listen to gpio's
  • Listen to only push-downs or also duration (dual callback)
  • Dual resolution counting of rotary encoder (counts on rising and falling edge of both outputs)
  • Configurable for ground->io or 5v->io buttons and encoders
  • Configurable for normally open (NC) or normally closed (NC) buttons
  • Uses built in pull-ups and pull-downs in Raspberry Pi

How to connect

Connect the switch between ground and a io. This is the default way, using io_gnd = True and normally_closed assuming your switch opens on click.

--------+
        |
        |
R       |-+
A   I/0 | |------+
S       |-+      |
P       |        |
B       |        o
E       |         \
R       |        --\---| Switch
R       |           \
Y       |        o   \
        |-+      |
P   GND | |------+
I       |-+
        |
        |
--------+