olio
Posts: 35
Joined: Tue Feb 02, 2016 8:55 am

gertbot and GPIO pins access from below

Fri Dec 06, 2019 12:32 pm

Hello,
I use two Gertbots to run 3 stepper motors and one DC motor. Additionally, I would like to install a 3.5 inch Adafruit TFT display (PiTFTplus). What would be the smartest way to access the GPIO pins below the Gertbot?
Is there a probably a stack-on connector with a flat cable comes out side-wards, that I can stack between Pi and Gertbot?
Greetings and thanks for any hint!
Oliver

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thagrol
Posts: 3553
Joined: Fri Jan 13, 2012 4:41 pm
Location: Darkest Somerset, UK
Contact: Website

Re: gertbot and GPIO pins access from below

Fri Dec 06, 2019 3:50 pm

You don't have to mount the gertbot directly on the Pi's gpio. See section 4.9 of the gerbot manual: https://www.gertbot.com/gbdownload/rev2 ... al_2.8.pdf

Assuming there is no pin conflict pick one of the many products that convert the Pi's single gpio header to multiple ones.

A few to get you started (other products and other suppliers exist):

https://www.ebay.co.uk/itm/Butterfly-Al ... wMcUBoncvg

https://shop.pimoroni.com/products/phat ... 8973360138

https://shop.pimoroni.com/products/pico-hat-hacker

https://shop.pimoroni.com/products/mini ... 9448026055
Arguing with strangers on the internet since 1993.

olio
Posts: 35
Joined: Tue Feb 02, 2016 8:55 am

Re: gertbot and GPIO pins access from below

Mon Dec 09, 2019 8:16 am

Hello thagrol,
many thanks for the hint...in fact I didn't look at this part and should have found the solution by myself;-( I appreciate also the links for the GPIO multiplier parts...I like the pico hat hacker.
Greetings and have a good day!
Oliver

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