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I2C pull-up issue

A project log for I2C Encoder

Connect up to 16 encoders on Arduino or ESP8266 board on the I2C bus!

saimonSaimon 10/22/2017 at 09:380 Comments

Thanks to the community i found a problem on the i2c pull-up resistor.
When the P-UP jumper is open, the two resistors are in parallel to the SCL and SDA pins, which causes problem on the bus. 
The solution is simply remove them when pull-up resistors are not used.

My appreciations to the hackaday community!

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