# Pan&Tilt bad i2c connection?

**URL:** https://forums.pimoroni.com/t/pan-tilt-bad-i2c-connection/10067
**Category:** Support
**Created:** [March 6, 2019, 9:00am UTC](https://forums.pimoroni.com/t/pan-tilt-bad-i2c-connection/10067 "2019-03-06T09:00:03Z")
**Posts on this page:** 5
**Page:** 1

<div class="post-metadata">

### Author: ![lastcaress](https://avatars.discourse-cdn.com/v4/letter/l/6de8d8/32.png) [@lastcaress](https://forums.pimoroni.com/u/lastcaress)
#### Post date: [March 6, 2019, 9:00am UTC](https://forums.pimoroni.com/t/pan-tilt-bad-i2c-connection/10067/1 "2019-03-06T09:00:03Z")

</div>

So I’ve finally gotten around to trying my pan&tilt hat and it’s not recognized (with i2cdetect) with several of my raspberry pies (3 B+ and A+) unless I apply a very specific angle in the connection with the gpio pins. I don’t think it’s shorting with the hdmi port or anything, it’s really at the level of the gpio pins. Anyone having similar experience? Any solutions? Do I have a faulty hat? Thank you.

---

<div class="post-metadata">

### Author: ![gadgetoid](https://sea2.discourse-cdn.com/flex016/user_avatar/forums.pimoroni.com/gadgetoid/32/13_2.png) [@gadgetoid](https://forums.pimoroni.com/u/gadgetoid)
#### Post date: [March 6, 2019, 9:31am UTC](https://forums.pimoroni.com/t/pan-tilt-bad-i2c-connection/10067/2 "2019-03-06T09:31:24Z")

</div>

Have you pushed the HAT firmly down on the GPIO header? Are you using soldered or solderless headers?

This isn’t something I’ve come across before- usually the contacts within the header are pretty robust… sometimes _too_ robust. We’ll figure it out, though!

---

<div class="post-metadata">

### Author: ![lastcaress](https://avatars.discourse-cdn.com/v4/letter/l/6de8d8/32.png) [@lastcaress](https://forums.pimoroni.com/u/lastcaress)
#### Post date: [March 6, 2019, 9:41am UTC](https://forums.pimoroni.com/t/pan-tilt-bad-i2c-connection/10067/3 "2019-03-06T09:41:26Z")

</div>

I’m using the a+ and b+ with pre-soldiered pins. When the hat is firmly pushed down it doesn’t work (with or without standoffs). In order to work I have to elevate the non gpio end a few cms. The difference between working and not working is a mere millimeters!

---

<div class="post-metadata">

### Author: ![gadgetoid](https://sea2.discourse-cdn.com/flex016/user_avatar/forums.pimoroni.com/gadgetoid/32/13_2.png) [@gadgetoid](https://forums.pimoroni.com/u/gadgetoid)
#### Post date: [March 6, 2019, 10:22am UTC](https://forums.pimoroni.com/t/pan-tilt-bad-i2c-connection/10067/4 "2019-03-06T10:22:58Z")

</div>

Sounds like a fault with the HAT, and something we need to take a look at! Would you mind returning it to us for testing? I’ll DM you details and prepare a replacement for you.

---

<div class="post-metadata">

### Author: ![lastcaress](https://avatars.discourse-cdn.com/v4/letter/l/6de8d8/32.png) [@lastcaress](https://forums.pimoroni.com/u/lastcaress)
#### Post date: [March 6, 2019, 12:40pm UTC](https://forums.pimoroni.com/t/pan-tilt-bad-i2c-connection/10067/5 "2019-03-06T12:40:10Z")

</div>

I will only get home late tonight but I will film the i2detect thinggie with the connection when I arrive! Thank you very much !!
