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Forum Index : Microcontroller and PC projects : PCF8574 I2C LCD
| Author | Message | ||||
jman Guru  Joined: 12/06/2011 Location: New ZealandPosts: 711 |
Hi So in the current trend of I/O saving I decided to buy one of these PCF8574 8 bit I2C I/O boards from Ebay Ebay PCF8574 
This simple code flash's a LED connected to any of the I/O pins I2caddr = &h20 ' PCF8574 I2C address
I2CEN 100,100 ' Enable I2C Test: I2CSEND i2caddr, 0, 1, &B00000000 Pause 500 I2CSEND i2caddr, 0, 1, &B11111111 pause 500 GoTo Test A real good use for this device is to drive a Character LCD like this 
Many thanks to http://letsmakerobots.com/node/4240 for the PixAxe code Code attached 2012-03-28_161915_I2CLCD.zip |
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