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Access GPIO4 on LCD Pi Plate
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Access GPIO4 on LCD Pi Plate

by brennash on Fri May 14, 2021 3:46 pm

Hi, I'm looking to hook up a temperature sensor to the GPIO4 pin on a Raspberry Pi, but this pin is used (I think) as part of the header pins for the Adafruit Blue&White 16x2 LCD+Keypad Kit for Raspberry Pi. Anyone any idea how I can access the GPIO4 pin to add on another I2C component (sensor) to the bus?

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Re: Access GPIO4 on LCD Pi Plate

by adafruit_support_mike on Sat May 15, 2021 12:07 am

It will probably be easiest to use a Hat Hacker to get a second set of connections:

https://www.adafruit.com/product/3577

The PCB is thin enough that you can solder it directly to the RasPi's GPIO header and still make good contact to the LCD Plate, but you can also use stacking headers:

https://www.adafruit.com/product/2223

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Re: Access GPIO4 on LCD Pi Plate

by brennash on Sun May 16, 2021 1:36 am

Thanks Mike!

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Please be positive and constructive with your questions and comments.