Tagged Questions

3
votes
2answers
435 views

Establishing a proper TWI/I2C communication between a pair of Atmega32

I am a mechanical engineer with the desire of learning electronics stuff. I am working on these days at learning the TWI(I2C) communication in Atmega32. With a lot of internet search I have managed ...
1
vote
3answers
357 views

Two wire vs. three wire serial interface for RTC

I'm looking to choose an RTC for a project I have in mind. I have the following options (linked to datasheet): DS1307 DS1302 The main difference seems to be the communication protocol. The DS1307 ...
1
vote
1answer
156 views

Multiple masters for i2c device

I have a DS1307 RTC chip that I want to interface with multiple masters. One, an ATMega chip, will only ever really need to pull time data from the chip and the other (probably just an ATTiny) will ...
4
votes
1answer
810 views

Using MLX90614 OR is I2C and SMBus compatible?

I am trying to use a Melexis MLX90614 with Atmega8. I have failed in all my attempts till now. I tried sending this sequence ...