Set PCA9633 via I2C on Raspberry Pi. Includes installation for a backlight and PWM fan controller for Freeplay units. It should be noted that the PWM Fan control requires the Freeplay L2/R2 Addon board, with the pin 40 pad on the Addon board soldered to the large pad on the main PCB to the left of the CM3 connector.
sudo raspi-config #under interface options, enable I2C and reboot
git clone https://github.com/theFlav/setPCA9633
cd setPCA9633
make
./install.sh #if using with Freeplay unit with backlight/fan control| Argument Flag | Possible Values | Description |
|---|---|---|
a |
0xXX |
I2C Address of PCA9633 |
y |
0, 1 |
Use /dev/i2c-0 or /dev/i2c-1 (hint: see man i2cdetect) |
l |
ON, OFF, PWM, GRP |
Set led0 to ON, OFF, PWM, or GRP |
m |
ON, OFF, PWM, GRP |
Set led1 to ON, OFF, PWM, or GRP |
n |
ON, OFF, PWM, GRP |
Set led2 to ON, OFF, PWM, or GRP |
o |
ON, OFF, PWM, GRP |
Set led3 to ON, OFF, PWM, or GRP |
p |
0xXX |
Set pwm0 to 0xXX (Hexadecimal value, hence the 0x) |
q |
0xXX |
Set pwm1 to 0xXX |
r |
0xXX |
Set pwm2 to 0xXX |
s |
0xXX |
Set pwm3 to 0xXX |
g |
0xXX |
Set grppwm to 0xXX (Duty cycle, out of 0xFF or 255) |
h |
0xXX |
Set grpfreq to 0xXX (Smaller is for higher frequency, 0xFF is 10 second period) |
1 |
0xXX |
Set mode1 to 0xXX |
2 |
0xXX |
Set mode1 to 0xXX |
w |
WAKE, SLEEP |
WAKE or SLEEP (no output during SLEEP) |
i |
NO, YES |
Invert PWM? YES/NO |
d |
OFF, ON |
OUTDRV on? OFF/ON |
b |
OFF, ON |
DMBLNK on? OFF=dimming/ON=blinking |
v |
0,1,2 |
0=no output 1=only output exitcode 2=normal full output |
e |
0,1,2,3 |
Use current LEDn value as exitcode when done |
So, as an example:
./setPCA9633 -y 1 -a 0x62 -d ON -w WAKE -i YES -m GRP -h 0x08 -g 0x30 -b ON
# └──┬─┘└───┬─┘ └─┬─┘ └───┬──┘└─┬──┘ └───┬┘ └─┬──┘ └─┬───┘ └─┬─┘
# i2cbus 1 │ outdrv ON │ invert PWM │ GRP Freq │ Blinking mode
# i2c address 0x62┘ wake up chip┘ CH1 GRP mode┘ Duty Cycle┘