I2C not working wit...
 
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[Solved] I2C not working with Leonardo

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(@pablo1b)
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Joined: 3 years ago
Posts: 1
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Hi everyone!

I'm trying to connect the 16x2 I2C LCD to Simhub. However, after the connecting the same as on the provided scheme, it doeasn't work (see https://imgur.com/a/E21rial). The problem is that after connecting I2C, i2c_scanner doesn't detect it. But if I reconnect the SCL and SCA from I2C to the same SCL and SCA on the Arduino Leonardo, the i2c_scanner gives me the adresses, but still i don't get anything on the screen. Here's the photo of the prototype https://imgur.com/a/AUNawub

I have also tried adding the button, that moves to the next screen in case, the first one was blank or something. Still didn't get any responce on LCD. 

Thanks in advance!

Edit:

I found the solution, for leonardo SDA and SCL have to be connected to the 2nd and 3rd pin, then I2C scanner can read adresses. The schame on simhub does not show that, but in the caption below enabling the I2C LCD is the information.

This topic was modified 3 years ago by pablo1b

   
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