Schematic of Einviro pHAT


#1

Is it possible to get the schematic of Enviro pHAT. I could not find it anywhere.


#2

We don’t usually make schematics available. For what purpose would you like it?


#3

There’s lots of detail about the various sensors used on Enviro pHAT in the blog post below.

http://blog.pimoroni.com/enviro-phat/

And the pins used are detailed at pinout.xyz.


#4

Hi, I am having a similar request.
Actually I do not need all schematics and details. I am looking for what pins are used for the connection with the Pi.

As a lot of other people noticed the pHAT is not very accurate with the temperature. My idea is to connect the Pi and the pHAT with some jumper-cables. I do not have 40 and I do not want to just try and guess.

So far I did not learn a lot from all the documentation, or I just did not find the right one yet.

Any chance that you could point me/us in the right direction?


#5

as @sandyjmacdonald posted above, the pinout is available at: http://pinout.xyz/pinout/enviro_phat

… but basically all the sensors operate over I2C. You may skip BCM4 if you don’t need the LEDs. Your choice of ground does not matter (physical pin 6 makes sense due to its location).


#6

Hi,

Same as bkorjonen I am going to remotely attach the Enviro phat to my zero w in a window on my shed roof. Ie. detect whether the sky is blue/grey, temp, humidity etc. Replies and links have been informative. :) So far I have gathered the Pi/Enviro phat connections need wiring on pins BCM 2/3/4 and a ground hence requiring a 4 wire cable. Please correct me if I’m wrong.

In addition, would it be better to use a shielded 3 wire cable and use shield as ground to stop any spurious interference?

Cheers for helping a newbie, and to bkorjonen for asking.