Stacking

Submitted by bantammenace on Fri, 08/12/2016 - 10:42

Forums:

Hello,
1. I can't seem to find an image of the ZeroBorg PinOuts anywhere/anymore ?

2. My Zeroborg is attached below my PiZero by the provided 6 pin header. This means that the first 6 pins (3 on each side) are no longer directly available to anything sat on top of my PiZero.
I am now trying to add my Redbear IoT pHAT (40 pin female header pre-soldered) to the top of the PiZero.
I have added a 34 pin male header to the top of the PiZero on top of which my 40 pin RedBear IoT pHAT sits. Unfortunately the IoT pHAT does not appear to want to turn on without access to the 6 pins already used by the ZeroBorg. I have not yet been able to discover whether the IoT pHAT can be configured to work without access to these pins.
Is it feasible for the ZeroBorg and the IoT pHAT to share the same 6 pins on the PiZero and if so how ?
a). Could I replace the 6 pin header with one with longer mail pins ?
b). Could I run wires from the 6 pins below the ZeroBorg to the 6 un-connected pins on the IoT pHAT ?

Here is the PinOut for the IoT pHAT https://pinout.xyz/pinout/iot_hat

Thanks in advance.

piborg's picture

piborg

Fri, 08/12/2016 - 11:18

The pin out for the ZeroBorg is fairly simple:

The ZeroBorg uses all six pins with the 5V regulator fitted, so they all need to be connected.

The IoT HAT almost certainly needs at least one of the first six pins to get its power.
This will likely be why you cannot get it to turn on without connecting them.

It should be perfectly fine to share these pins with both boards.
Using extended length pins would be the better option, but unsoldering the existing header may be difficult.

Running wires from the underside connector on the ZeroBorg to the six pins on the IoT HAT should work correctly.
Be careful to get the pins the correct way around, the ones on the underside of the ZeroBorg are mirrored:

bantammenace

Fri, 08/12/2016 - 16:20

Thanks for that, I've ordered an extra long female header and rather than try and de-solder or run wires I decided the most efficient thing would be to buy another PiZero.
I'll let you know how I get on.

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