woldes Posted April 6 Share Posted April 6 hI i just couldnt get i2c signal out of AD2! the i2c circuit is working fine, but AD2 just no signal, AD2 is powered up, black ground pin connected, anyone can help ? Link to comment Share on other sites More sharing options...
0 attila Posted April 8 Share Posted April 8 Hi @woldes The I2C should be read as logic high in idle. Do you have pull-ups on the SCL and SDA ? Link to comment Share on other sites More sharing options...
0 woldes Posted April 8 Author Share Posted April 8 no, no pull-up... but circuit is working Link to comment Share on other sites More sharing options...
0 woldes Posted April 8 Author Share Posted April 8 Link to comment Share on other sites More sharing options...
0 JColvin Posted April 9 Share Posted April 9 Hi @woldes, One of your hardware boards might already have pull-ups integrated into the PCB if I2C is working on the hardware end of things. The other thing to double check is that you are connecting the correct wires from the AD2 to your circuitry (looks like it should be DIO 2 and 3 from your screenshot). Thanks, JColvin Link to comment Share on other sites More sharing options...
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woldes
hI i just couldnt get i2c signal out of AD2! the i2c circuit is working fine, but AD2 just no signal, AD2 is powered up, black ground pin connected, anyone can help ?
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