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kriswiner / ESP32

Arduino sketches for the ESP32
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What is the best value for pull up resistance on SDA and SCL for MPU9250 when used with ESP32 #22

Open shomedas opened 5 years ago

shomedas commented 5 years ago

There are two values of pull up resistance(4.7k and 10k) which I have come across in all the issues in your github. I would like to know which is the correct value of pullup reistance on each of SDA, SCL lines when an MPU9250 is connected to ESP32. Also I would like to know if the value of pull up can be a cause of delay/lag in the response of estimated yaw, pitch, roll values.

kriswiner commented 5 years ago

If you only have one or two I2C devices on the bus, then I would use 4K7.

" if the value of pull up can be a cause of delay/lag in the response of estimated yaw, pitch, roll values." No

But the I2C API can....

On Wed, Oct 16, 2019 at 1:19 PM shomedas notifications@github.com wrote:

There are two values of pull up resistance(4.7k and 10k) which I have come across in all the issues in your github. I would like to know which is the correct value of pullup reistance on each of SDA, SCL lines when an MPU9250 is connected to ESP32. Also I would like to know if the value of pull up can be a cause of delay/lag in the response of estimated yaw, pitch, roll values.

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