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I²C (Inter-Integrated Circuit) is a multi-drop serial bus invented by Philips (now NXP) for communication between ICs on the same PCB, i.e. short distance.

6
votes
3answers
I have an I2C sensor that has a some 89kΩ pull-up resistors on the SDA and SCL lines. The controller I'm using has 2.2kΩ internal resistors on these lines as well. I'm worried that the sensor won't …
asked Jun 1 '11 by Eric
4
votes
3answers
I'm thinking about getting a bunch of Maxbotix Ultrasonic rangefinders. I'd like to use as few pins on my controller as possible. Since I don't think you can have multiple devices on an RS232 serial c …
asked Mar 29 '11 by Eric