# Schematic of Einviro pHAT **URL:** \ **Category:** Raspberry Pi\ **Created:** [September 1, 2016, 9:48am UTC](https://forums.pimoroni.com/t/schematic-of-einviro-phat/2951 "2016-09-01T09:48:42Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![ckuehnel](https://sea2.discourse-cdn.com/flex016/user_avatar/forums.pimoroni.com/ckuehnel/32/1575_2.png) [@ckuehnel](https://forums.pimoroni.com/u/ckuehnel)\ **Post date:** [September 1, 2016, 9:48am UTC](https://forums.pimoroni.com/t/schematic-of-einviro-phat/2951/1 "2016-09-01T09:48:42Z")
Is it possible to get the schematic of Enviro pHAT. I could not find it anywhere. ---
**Author:** ![sandyjmacdonald](https://sea2.discourse-cdn.com/flex016/user_avatar/forums.pimoroni.com/sandyjmacdonald/32/393_2.png) [@sandyjmacdonald](https://forums.pimoroni.com/u/sandyjmacdonald)\ **Post date:** [September 2, 2016, 9:29am UTC](https://forums.pimoroni.com/t/schematic-of-einviro-phat/2951/2 "2016-09-02T09:29:35Z")
We don’t usually make schematics available. For what purpose would you like it? ---
**Author:** ![sandyjmacdonald](https://sea2.discourse-cdn.com/flex016/user_avatar/forums.pimoroni.com/sandyjmacdonald/32/393_2.png) [@sandyjmacdonald](https://forums.pimoroni.com/u/sandyjmacdonald)\ **Post date:** [September 2, 2016, 9:39am UTC](https://forums.pimoroni.com/t/schematic-of-einviro-phat/2951/3 "2016-09-02T09:39:37Z")
There’s lots of detail about the various sensors used on Enviro pHAT in the blog post below. [http://blog.pimoroni.com/enviro-phat/](http://blog.pimoroni.com/enviro-phat/) And the pins used are detailed at pinout.xyz. > **[Enviro pHAT at Raspberry Pi GPIO Pinout](https://pinout.xyz/pinout/enviro_phat)** > > A package of environmental sensors for IoT projects ---
**Author:** ![bkorjonen](https://avatars.discourse-cdn.com/v4/letter/b/5daacb/32.png) [@bkorjonen](https://forums.pimoroni.com/u/bkorjonen)\ **Post date:** [January 27, 2017, 2:37pm UTC](https://forums.pimoroni.com/t/schematic-of-einviro-phat/2951/4 "2017-01-27T14:37:01Z")
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? ---
**Author:** ![RogueM](https://sea2.discourse-cdn.com/flex016/user_avatar/forums.pimoroni.com/roguem/32/311_2.png) [@RogueM](https://forums.pimoroni.com/u/RogueM)\ **Post date:** [January 27, 2017, 2:39pm UTC](https://forums.pimoroni.com/t/schematic-of-einviro-phat/2951/5 "2017-01-27T14:39:37Z")
as @sandyjmacdonald posted above, the pinout is available at: [http://pinout.xyz/pinout/enviro\_phat](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). ---
**Author:** ![vk5fang](https://avatars.discourse-cdn.com/v4/letter/v/b9bd4f/32.png) [@vk5fang](https://forums.pimoroni.com/u/vk5fang)\ **Post date:** [October 16, 2017, 12:25am UTC](https://forums.pimoroni.com/t/schematic-of-einviro-phat/2951/6 "2017-10-16T00:25:04Z")
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.