fruchti
19a78f2527
Use default 8 MHz clock, disable PLL
...
Reducing the frequency to one sixth increases flickering somewhat, but
it's not too bad. More importantly, the current draw (at 5 V) at the
lowest brightness settings (all LEDs white) is reduced from 13 mA to
about 3 mA.
2020-07-16 16:17:35 +02:00
fruchti
8c3bc4222c
Tune light sensor parameters
2020-07-16 16:14:43 +02:00
fruchti
8c3a471aba
Make brightness depend ~linearly on photocurrent
2020-07-15 22:47:55 +02:00
fruchti
fe246bfa6d
Use averaged brightness for limit calculation
2020-07-15 22:44:20 +02:00
fruchti
ccfdd7aeab
Clean up uniform brightness setting
2020-07-15 22:29:34 +02:00
fruchti
fc5f7caa14
Set matrix column output speed
2020-07-15 22:27:00 +02:00
fruchti
863a720749
Poll light sensor during startup delay
2020-07-15 15:07:03 +02:00
fruchti
d2557e969d
Reset row shift register immediately after reset
2020-07-15 15:05:09 +02:00
fruchti
75d280c8ea
Remove maximum/minimum brightness decay
2020-07-15 14:07:07 +02:00
fruchti
6d63b76a02
Add basic time-based light sensor code
2020-07-11 21:04:07 +02:00
fruchti
fff3b133c1
Add meaningful colour struct, double buffering
2019-12-22 22:52:01 +01:00
fruchti
bc062dac9b
Add LED matrix control (12×8)
2019-12-22 22:04:05 +01:00
fruchti
dc3ce3a777
Increase number of LEDs to 12
...
Caution: Disables SWD, makes flashing under reset necessary.
2019-12-22 19:42:18 +01:00
fruchti
8891670bb7
Invert LED outputs, set to open drain
2019-12-22 19:05:46 +01:00
fruchti
fe7a2f1869
Add basic 9-channel BCM output
2019-12-21 23:41:19 +01:00
fruchti
66381c3cb6
Add firmware wireframe
2019-12-10 23:19:01 +01:00
fruchti