Examples won't compile on ESP32 ?

[CRprog]

I'am using an ESP32 and want to use the setChannelsPWM to set 6 Servos at one I2C-write.
But the BatchingExample producing compile-errors:
no matching function for call to 'PCA9685::setChannelsPWM(int, int, word [12])'
and also other examples fail:
S:\arduino-1.8.10_ESP32\portable\sketchbook\libraries\PCA9685-Arduino\PCA9685.cpp:208:45: error: 'BUFFER_LENGTH' was not declared in this scope
int maxChannels = min(numChannels, (BUFFER_LENGTH - 1) / 4);
Any Idea ?

Edit:
By replacing "word pwms[12];" --> "uint16_t pwms[12];" in example the 1st error is gone :-)
Only the missing BUFFER_LENGTH remains in moment.

[NachtRaveVL]

I left this as a comment around its usage:

// In avr/libraries/Wire.h and avr/libraries/utility/twi.h, BUFFER_LENGTH controls
// how many channels can be written at once.

Since you're not using the AVR libraries (you're using ESP32) you'll probably have to self-define this.

Still may be worth coding in a default to use in any case.

[CRprog]

Thank you for the hint, For me, I've added the marked (#) lines here in PCA9685.h
.....
#define PCA9685_MIN_CHANNEL 0
#define PCA9685_MAX_CHANNEL 15
#define PCA9685_CHANNEL_COUNT 16
#ifndef BUFFER_LENGTH (#)
#define BUFFER_LENGTH 32 (#)
#endif (#)
.....
Now it compiles. But maybe there's a better solution at another place ....
Btw.: If you maybe update sometime, think about adding a keywords.txt (?)

[NachtRaveVL]

Fixed on version 1.2.11. Pushed to master. No worries =). It was a good catch for an odd side case. Let me know if the new version helps or not. =)

[CRprog]

Runs fine now 'out of the box' also in the ESP32 environment. Good job and have a nice day.