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The Digispark => Digispark Pro Support => Topic started by: Miirek on April 14, 2015, 03:04:12 pm

Title: Interrupts, PWM and I2C
Post by: Miirek on April 14, 2015, 03:04:12 pm
Hi,
on Kickstarter, I've purchased BLE robot car kit. Works perfect. So I decided to enhance it. I've bought optical speed encoders, echolocation sensor for distance measurement and magnetometer/compass. Now I have some problems.
 
- how can I combine I2C communication and Motor shield attached to I2C ports?
- I'm trying to attach speed encoder triggers to pin 9 and 10 and via attachInterrupt call ISR to count ticks but no success

Can someone, please, point me to the right direction, where to look and/or what to read ... ?

arduino sketch is here .. https://github.com/Miirek/BLEBot/blob/master/arduino/bot_2/bot_2.ino

Thanks.
Mirek