# Cap1188 not detected by pi4

**URL:** <https://forums.pimoroni.com/t/cap1188-not-detected-by-pi4/11833>\
**Category:** Support\
**Created:** [October 6, 2019, 11:08am UTC](https://forums.pimoroni.com/t/cap1188-not-detected-by-pi4/11833 "2019-10-06T11:08:49Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![smarques](https://sea2.discourse-cdn.com/flex016/user_avatar/forums.pimoroni.com/smarques/32/5969_2.png) [@smarques](https://forums.pimoroni.com/u/smarques)\
**Post date:** [October 6, 2019, 11:08am UTC](https://forums.pimoroni.com/t/cap1188-not-detected-by-pi4/11833/1 "2019-10-06T11:08:49Z")

</div>

Hi,  
I am trying to connect a cap1188 ([https://shop.pimoroni.com/products/adafruit-8-key-capacitive-touch-sensor-breakout-i2c-or-spi](https://shop.pimoroni.com/products/adafruit-8-key-capacitive-touch-sensor-breakout-i2c-or-spi)) to the i2c bus of a pi4  
this is how I am wiring it

 ![image](https://us1.discourse-cdn.com/flex016/uploads/pimoroni/original/2X/f/ff91b8b99ad3a989d27e1a43b8f3927fb31610e8.jpeg)

i2c is enabled  
`lsmod | grep i2c_`  
returns  
i2c\_bcm2835 16384 0  
i2c\_dev 20480 0

but the device is not detected, ie when I run

`sudo i2cdetect -y 1`

I get all empty slots  
0 1 2 3 4 5 6 7 8 9 a b c d e f  
00: – -- – -- – -- – -- – -- – -- –  
10: – -- – -- – -- – -- – -- – -- – -- – --  
20: – -- – -- – -- – -- – -- – -- – -- – --  
30: – -- – -- – -- – -- – -- – -- – -- – --  
40: – -- – -- – -- – -- – -- – -- – -- – --  
50: – -- – -- – -- – -- – -- – -- – -- – --  
60: – -- – -- – -- – -- – -- – -- – -- – --  
70: – -- – -- – -- – --

Any hint on how to troubleshoot this?  
TIA