I2C pullup resistors on Netduino Mini
Posted 16 December 2010 - 07:33 PM
So does this mean that you do NOT need to provide external pullups (typically 4.7k, right?)
Just curious - I suppose I'll find out the first project I try to use I2C with a Mini...
Posted 16 December 2010 - 07:36 PM
Posted 16 December 2010 - 11:05 PM
Posted 12 June 2014 - 05:57 AM
Hello! I using Netduino mini and want to connect on I2C port one device - LIS 331 accellerometer. Please tell me how wright connect it? What nominal resistors place from SDL, SCA to VCC wire? And second - I planning power mini from +5.5V (USB port) but LIS 331 powered maximum 3.3 V can I use 1 LED for drop down power from 5.5 to 3.3? Or best offer will be using LM317L(with resistors defferential) current converter?
Posted 13 June 2014 - 08:11 AM
for the pullup resistors for SDA and SCL you can just try to use 4.7k ohm.
For powering the LIS 331 you should use a 3.3V regulator. THe LM317L will work just fine, but it would be easier to use something like MC33269DT-3.3G instead, since it doesn't require any external components.
Posted 13 June 2014 - 12:31 PM
Thank you Frode! You just save more time for me! Regards.
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