gordonthree/pca9633

Arduino library for control of NXP 9633 (and 9632) four channel PWM led driver chips.

pca9633's Issues

Schematics

Schematic and experience

HI,
really nice project!
do you have the schematic and would share it for your driver? What was your experience with EMI driving directly the mosfet?

I2C addresses and basic setup

Hi,

I have a PCA9633
https://datasheet.lcsc.com/lcsc/2304140030_NXP-Semicon-PCA9633DP1-118_C88381.pdf
https://www.lcsc.com/product-detail/LED-Drivers_NXP-Semicon-PCA9633DP1-118_C88381.html

It is an 8-pin TSSOP8 device. When I scan the I2C addresses, I get 3 of them:
0x03
0x62
0x70

How to address this chip? Tried rgbw.begin(0x70); and changed all three but no luck. I have an LED with a resistor connected to a pin 4. It is lit all the time (some 50% or so).

Any suggestion what to try?

error: 'pcaAddr' was not declared in this scope

pca9633.cpp:96:3: error: 'pcaAddr' was not declared in this scope

There is:
pcaAddr = devAddr;
but should be:
_pcaAddr = devAddr;

set frequency

Hello
first : thanks for the lib !
second : I'm very new to github, I really don't know if it's the correct way to ask you this ...

Is it possible to set the frequency of the pwm output of the pca9633 ?
I see a : " #define GRPFREQ (0x07) // group frequency " in 9633.h but no mentions of it else where.

I'm trying to control a CN5711 led driver and it works with pwm directly from the esp32 at 1khz but not with the pca (1.6khz)

Example

would it be possible for you to make an Arduino example code? just a basic one. I'm trying to use it to control RGBW strip and was wondering you could just make an example sketch so i can control the 4 channels with the standard 0 -255 values

thank you

Publish the library

Hi!

Will you publish the library?
HowTos:

• Platformio: https://docs.platformio.org/en/latest/userguide/lib/cmd_register.html#cmd-lib-register
• Arduino: https://github.com/arduino/Arduino/wiki/Library-Manager-FAQ#how-can-i-publish-a-new-release-once-my-library-is-in-the-list

Or should I do it?

Have fun! WBR,
Ag