I have tried different tutorials and forums where people had same/similar issues with i2c but still, I can't solve this problem.
I tried two different BMP180 Digital Barometric Pressure Sensor modules and even IIC/12C/TWI 1602 Serial LCD module
None of them showed up on the i2c detect -y 1
I have Raspberry PI 3 B and the following versions and Raspbian GNU/Linux 9 (stretch)
Did you enable i2c in the setup/preferences? It's disabled by default.
Check power on the sensor board itself with your multimeter. Then (assuming that's all OK at 3.3v) check the SCL and SDA wires - swap them over - it won't hurt anything, but it's easy to get these the wrong way round.
Try one device at a time too.
Gordon
It may also be that the necessary pull-up resistors are missing from SDA, SCL or both.
I played around with the multimeter already and also tried different cables (event swapping them around)
I also tried to add pull-up resistors from 3.3V
I played around with the multimeter already and also tried different cables (event swapping them around)
I also tried to add pull-up resistors from 3.3V
Il giorno domenica 18 febbraio 2018 22:12:39 UTC+1, Andrew ha scritto:
have you tried with i2cdetect -y 0 ?
the only other thing to try is to get an oscilloscope and check the signals...
Bye Jack
They are fitted to the Pi as standard.
Gordon
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