Switching power with the Arduino over a I2C connected PCF8574: Unterschied zwischen den Versionen
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| − | + | == Goal == | |
| + | |||
| + | This little project wants do demonstrate how it is possible to switch a great number of lines with one single Arduino controller. It uses the PCF8574P chip. It is actually a reimplementation of this project: | ||
| + | |||
| + | * http://circuitsforbeginners.blogspot.com/2009/11/project-rolling-dice-expanding-arduino.html | ||
| + | |||
| + | == References == | ||
| + | |||
| + | * http://www.arduino.cc/en/Reference/Wire The WIRING "Wire" library | ||
| + | * http://www.neufeld.newton.ks.us/electronics/?p=241 A project in which the workings of the I2C protocol are well described | ||
| + | * www.nxp.com/documents/data_sheet/PCF8574.pdf The Datasheet for the PCF8574 | ||
| + | |||
| + | == The Scheme == | ||
| + | |||
| + | [[Image:pcf8574_i2c.jpg|400px]] | ||
Version vom 16. Juli 2010, 22:15 Uhr
1 Goal
This little project wants do demonstrate how it is possible to switch a great number of lines with one single Arduino controller. It uses the PCF8574P chip. It is actually a reimplementation of this project:
2 References
- http://www.arduino.cc/en/Reference/Wire The WIRING "Wire" library
- http://www.neufeld.newton.ks.us/electronics/?p=241 A project in which the workings of the I2C protocol are well described
- www.nxp.com/documents/data_sheet/PCF8574.pdf The Datasheet for the PCF8574
3 The Scheme
