I have created two projects, one with a Tiny RTC and another one with the BM180 sensor to read barometric pressure and temperature. Now I want to combine both.
I'm trying to connect both - the BM180 sensor and a TinyRTC clock module via. the I2C pins to my Arduino Uno (r3) and because I'm just a beginner I have some problems.
The BM180 works with 3.3V, but the TinyRTC is on 5V. Can I just connect all the SDA together and all the SCL together?