# Pimoroni PA1010D GPS Breakout not visible as I2C device **URL:** \ **Category:** Support\ **Created:** [July 8, 2021, 5:53pm UTC](https://forums.pimoroni.com/t/pimoroni-pa1010d-gps-breakout-not-visible-as-i2c-device/17459 "2021-07-08T17:53:11Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![sfbence](https://avatars.discourse-cdn.com/v4/letter/s/df788c/32.png) [@sfbence](https://forums.pimoroni.com/u/sfbence)\ **Post date:** [July 8, 2021, 5:53pm UTC](https://forums.pimoroni.com/t/pimoroni-pa1010d-gps-breakout-not-visible-as-i2c-device/17459/1 "2021-07-08T17:53:11Z")
Hi, - connected to a RPi 4 - I2C enabled - connected as on the photos: ![IMG-0203](https://us1.discourse-cdn.com/flex016/uploads/pimoroni/original/2X/2/26f6066ff0ec8d1a71b3a8ab9f27bf25094dbbe5.jpeg) Problem: pi@raspberrypi4: ~ $ i2cdetect -y 1 0 1 2 3 4 5 6 7 8 9 a b c d e f 00: – – – – – – – – – – – – – 10: – – – – – – – – – – – – – – – – 20: – – – – – – – – – – – – – – – – 30: – – – – – – – – – – – – – – – – 40: – – – – – – – – – – – – – – – – 50: – – – – – – – – – – – – – – – – 60: – – – – – – – – – – – – – – – – 70: – – – – – – – – the device is not visible as a I2C device, no activity LED is visible. If I try other I2C devices, they are functionning. What am I doing wrong??? it is not soldered, but should function though… Thanks! ---
**Author:** ![Shoe](https://avatars.discourse-cdn.com/v4/letter/s/e36b37/32.png) [@Shoe](https://forums.pimoroni.com/u/Shoe)\ **Post date:** [July 8, 2021, 6:06pm UTC](https://forums.pimoroni.com/t/pimoroni-pa1010d-gps-breakout-not-visible-as-i2c-device/17459/2 "2021-07-08T18:06:41Z")
It’s hard to tell from the perspective, but do you have the black wire in the lane marked with a circle with a line through it? If so, the Ground wire needs connected to the GND pin. > it is not soldered, but should function though… I’d not want to guarantee that, it might sometimes but it wn’t other times. ---
**Author:** ![sfbence](https://avatars.discourse-cdn.com/v4/letter/s/df788c/32.png) [@sfbence](https://forums.pimoroni.com/u/sfbence)\ **Post date:** [July 8, 2021, 6:11pm UTC](https://forums.pimoroni.com/t/pimoroni-pa1010d-gps-breakout-not-visible-as-i2c-device/17459/3 "2021-07-08T18:11:04Z")
The connections are: - blue SDA1 → SDA - white SCL1 → SCL - red 5V → 3-5V - black GND → GND ---
**Author:** ![Shoe](https://avatars.discourse-cdn.com/v4/letter/s/e36b37/32.png) [@Shoe](https://forums.pimoroni.com/u/Shoe)\ **Post date:** [July 8, 2021, 6:19pm UTC](https://forums.pimoroni.com/t/pimoroni-pa1010d-gps-breakout-not-visible-as-i2c-device/17459/4 "2021-07-08T18:19:08Z")
The only other suggestions I’d have are: - Make sure you’ve got i2c enabled in `sudo raspi-config`, though if you’re getting i2cdetect output I’d be surprised it that’s the problem. - Try `sudo i2c detect -y 1` - Make sure the breadboard breakout you’re using is the right way around, these are notorious for being connected to the Pi in different orientations. - Try applying some pressure to the GPS breakout to make sure it is fully pressed against the pin header. - Put the pin header under the breakout to make sure it is getting a good connection to the breadboard rails. ---
**Author:** ![alphanumeric](https://sea2.discourse-cdn.com/flex016/user_avatar/forums.pimoroni.com/alphanumeric/32/2729_2.png) [@alphanumeric](https://forums.pimoroni.com/u/alphanumeric)\ **Post date:** [July 8, 2021, 6:34pm UTC](https://forums.pimoroni.com/t/pimoroni-pa1010d-gps-breakout-not-visible-as-i2c-device/17459/5 "2021-07-08T18:34:14Z")
I’d tilt the breakout with your hand while running i2cdetect. Really needs to be soldered by the way, or your just going to have a reoccurring issue. The black wire looks like its plugged into the wrong pin to me? It looks like its it plugged into the do not enter / not used pin. ---
**Author:** ![sfbence](https://avatars.discourse-cdn.com/v4/letter/s/df788c/32.png) [@sfbence](https://forums.pimoroni.com/u/sfbence)\ **Post date:** [July 8, 2021, 9:24pm UTC](https://forums.pimoroni.com/t/pimoroni-pa1010d-gps-breakout-not-visible-as-i2c-device/17459/6 "2021-07-08T21:24:12Z")
The hint with tilting helped, it could indeed detect the device. Since then also soldered, and works fine. Any hints for reaching with the above configuration the 10Hz refresh rate?