Train Station Clocks

The clocks in the space. See also Nottingham Hackspace's wiki:

https://wiki.nottinghack.org.uk/wiki/BigClocks

Screen size

96 × 26

Arduino pins used

pin	for
5V	power
3V3	power
GND	GND
13	SPI CLOCK
11	SPI DATA
6	mysterious square wave
4	latch/strobe between panels
2	board select

Programming the Arduino

Using Arduino or Platform IO, compile the files in ./src/.

# upload Arduino code
pio run -e checkerboard -t upload
pio run -e movingwords -t upload

Components for control

same as https://github.com/alifeee/bus-signs, see that.

The microcontroller within is DCcEle DCcduino UNO (basically an Arduino Uno)

Proto shield

See layout.ods.

See BigClock.h and Adafruit_GFX.h libraries for specific functions that can be used.

Libraries

Library	Version used
Adafruit_BusIO	da6809b582f1b64eeafe44d58df8a90a2fa9b47c
Adafruit-GFX-Library	223f914d0e092cc24723182a2e3273e61c4b22ea
BigClockSnake	997af0f0490c7a7ea11e199de90a76a7f8f5caab
TimerOne	ce0fa0b7965f189925d8b7dbba49d562f7c0a4b3

The BigClock library has been patched here.