lcd + pcf8574 I2C adaptor

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mazdee
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Joined: Tue Jan 23, 2018 7:50 am

lcd + pcf8574 I2C adaptor

Post by mazdee »

hi there.

i am building my own customised setup and can now happily connect to cheap ebay stm32f407 "diy more" board.

I have found an I2C 20x4 lcd in my box of bits, and there is a pcf8574 option in TS. Are there particular outputs I should use for SCL/SDA?
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AndreyB
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Re: lcd + pcf8574 I2C adaptor

Post by AndreyB »

A contributor has made some progress on this a while back and I never have used this setup. I am unable to help with LCD+I2C, I can use your help documenting when you get this working :)
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AndreyB
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Re: lcd + pcf8574 I2C adaptor

Post by AndreyB »

PS: see lcd_HD44780.cpp - the code around i2cMasterTransmit is commented out :( looks like this requires code changes
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mazdee
Posts: 22
Joined: Tue Jan 23, 2018 7:50 am

Re: lcd + pcf8574 I2C adaptor

Post by mazdee »

cheers.

Ill have a look :)
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