April 2018
Beginner
552 pages
13h 58m
English
book
Raspberry Pi 3 Cookbook for Python Programmers - Third Edition
by Steven Lawrence Fernandes, Tim Cox
Content preview from Raspberry Pi 3 Cookbook for Python Programmers - Third Edition
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How to do it...
- The i2cdetect command is used to detect the I2C devices (the --y option skips any warnings about possible interference with other hardware that could be connected to the I2C bus). The following commands are used to scan both the buses:
sudo i2cdetect -y 0 sudo i2cdetect -y 1
- Depending on your Raspberry Pi board revision, the address of the device should be listed on bus 0 (for Model B Rev1 boards) or bus 1 (for Raspberry Pi 2 and 3, and Raspberry Pi 1 Model A and Model B Revision 2). By default, the PCF8591 address is 0x48:
|
I2C bus number to use |
Bus 00 |
Bus 11 |
|
Raspberry Pi 2 and 3 |
HAT ID (I2C_VC) |
GPIO (I2C_ARM) |
|
Model A and Model B Revision 2 |
P5 |
GPIO |
|
Model B Revision 1 |
GPIO |
N/A |
- The following ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.