I2C Raspberry Pi (master) with Arduino Mega devices and I2C LCD screens

@zander $3 here $1.50 there.

@scsiraidguru ???

@zander  Sparkfun was $2 to $4 for each component.  I did pick up some 3/4" standoffs and screws to mount the LCD better.  I might try them on the Arduino and RPI too.  I looked at those breadboards $10-$17.   These QWIIC connectors will be better for I2C connection over using bread boards.

Hi just go my raspberry pi 16 channel hat to work I just had to download in the terminal past the code from adafruit.

Once I put the example code in thonny and run it the servo going from position 0 to 180 I also had different code that  could edit from one code I add o press c control to stop and it worked I run I by accident a the pi restarted so make sore turn on your external power pack 6v .

I still haven't got the other 16channel pca9685  working with my arduino ?

I've wired it up properly I add the pca9685 from libaray but not working.

Any help to get  this working arduino uno pca9685 

Thanks 

@videogame95 Install the library shown in the attached pic, then experiemnt with the 4 provided sample sketches as shown in the 2nd pic. I suggest starting with servo first.

@zander Thanks for that good news. I just got my ESP32 WROOM to work with Bills demo programme it was so easy not sure what I did wrong before. I also managed to get my raspi hat 16 channel board to work with two different programmes. at the moment I'm trying get my raspi 3 B+ to control a toy car over bluetooth.

 thanks for your help 

@videogame95 That's great! Good luck with the BT, it can be really finicky.

Yesterday I was trying a bunch of different esp32 boards with the pin display tool and I could not get any of the newer boards to work. Some days it's just not in the cards.