RPI I2C GPIO Extend Board SKU:EP-0013: Difference between revisions
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==Feature== | ==Feature== | ||
1) | *1)Extend GPIO | ||
2) | *2)Support both 5V and 3V power supply | ||
3) | *3)Support I2C protocol | ||
4)Dimensions: 3.4cm × 4cm | *4)Dimensions: 3.4cm × 4cm | ||
---- | ---- | ||
Revision as of 17:15, 2 August 2016
RPI I2C GPIO Extend Board
Description
There is a PCF8574 chip as main chip in this I2C GPIO extend board, it can offer 8bit GPIO and can select address by plugging a small jumper.
It can be connected with 8 same board, and you have a change to select the voltage in 5V and 3V.
It can prevent high voltage caused GPIO damage problem.
Warnning
DO NOT USE IT IN Raspberry Pi 3 B, Because of unsupported by wiringPi library.
Feature
- 1)Extend GPIO
- 2)Support both 5V and 3V power supply
- 3)Support I2C protocol
- 4)Dimensions: 3.4cm × 4cm
Presentation
Package includes
- 1x RPI B+ to B GPIO Downgrade Board
How to use
http://wiringpi.com/extensions/i2c-pcf8574/ 此处是教程,转载过来吧. 这里也有哦.http://www.52pi.net/forum.php?mod=viewthread&tid=745
Purchase Links
