With some extra programming, you should be able to make the master send a 'request' and the slave receiver to switch to master mode to send back the requested data. I now want to start a new thread in order to fix this issue: You can find more information on my project in my last post here The code for master and slave and the circuit is still the same. I could not use slave-addresses higher than 63 for whatever reason. The Wire library that is used to read and write bytes from and to the I2C port on the arduino doesnt work on the attiny. Transmitterįor some reason, I can use Master Send and Slave Receive with this wiring, but still not Slave Send and Master Receive. Hey I recently posted a problem I had with the I2C (slave) library TinyWireS.

Share this library with your friends on your favorite profile: Examples. The transmitter ATTiny85 collects the button information and sends it to the receiver ATTiny85, which turns on the LED based on if the button is pressed or not. I2C library for Trinket and Gemma, adapted from BroHogans code on Arduino Playground. This is the code I used for a basic test. I2C library for Trinket and Gemma, adapted from BroHogans code on Arduino Playground. It seems the master will function for one or two loop () cycles, however, it doesnt receive any data. Im trying to use an ATtiny45 as a slave device to read two infrared sensors in a line following application. Im running at 3.3 volts, and Im using 4.7k ohm pullup resistors.

It's called Manchester, and you can download it here. License: Unknown Library Type: Recommended Architectures: Any. Im having some problems with an ATtiny45, TinyWireS, and i2c. This isn't really an answer for the problem, but I've found another library that does what I want to achieve.

Tiny wire library