Enable SPI:
sudo raspi-config nonint do_spi 0
Install the library:
python3 -m pip install keybowYou may need to use sudo (or optionally python in lieu of python3)
git clone https://github.com/pimoroni/keybow-pythoncd keybow-pythonsudo ./install.sh
Decorator to attach a handler to a Keybow key. Your handler should accept an index and a state argument.
Handler callback params:
index: Integer - 0-based index of key to set the LED for, see #indexstate: Boolean -Trueon key down,Falseon release
@keybow.on()
def handle_key(index, state):
print("{}: Key {} has been {}".format(
time.time(),
index,
'pressed' if state else 'released'))Parameters:
r,g,b: Integer - amount of Red, Green and Blue (0-255)
keybow.set_all(0, 64, 128)
keybow.show()NOTE: Use
keybow.show()to update the LEDs actual state
Parameters:
index: Integer - 0-based index of key to set the LED for, see #indexr,g,b: Integer - amount of Red, Green and Blue (0-255)
for x in range(4):
keybow.set_led(x, 255, 0, 0)
for x in range(4):
keybow.set_led(x + 4, 0, 255, 0)
for x in range(4):
keybow.set_led(x + 8, 0, 0, 255)
keybow.show()NOTE: Use
keybow.show()to update the LEDs actual state
Turn off all LEDs
keybow.clear()
keybow.show()NOTE: Use
keybow.show()to update the LEDs actual state
Whenever setting LEDs use this to update the LED values. This needs to be used whenever you set any LED values
With GPIO on the left, the index is mapped out as following:
9 |
10 |
11 |
6 |
7 |
8 |
3 |
4 |
5 |
0 |
1 |
2 |