RPI I2C GPIO Extend Board SKU:EP-0013: Difference between revisions
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(Created page with "=RPI I2C GPIO Extend Board= ==Description== 此主板主芯片是PCF8574,可以提供8位GPIO,并且可以通过Jumper选择地址,以便级联最多8块这个样的主板.并...") |
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=RPI I2C GPIO Extend Board= | =RPI I2C GPIO Extend Board= | ||
==Description== | ==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. <br> | |||
It can be connected with 8 same board, and you have a change to select the voltage in 5V and 3V. <br> | |||
It can prevent high voltage caused GPIO damage problem.<br> | |||
'''Warnning'''<br> | |||
DO NOT USE IT IN Raspberry Pi 3 B, Because of unsupported by wiringPi library. | |||
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Revision as of 17:14, 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)扩展IO 2)支持5V 3V电平 3)I2C总线 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
