I love Raspberry Pi with the Qwiic connect system for playing with I2C devices. I've been using SparkFun Qwiic HAT for Raspberry Pi in a while and I have no issue. It is nice and easy. So this time I wanted to try SparkFun Qwiic SHIM for Raspberry Pi, but it was disappointedly unusable. I will talk about how I fixed it.
More than the low price (US$1), I was very curious about how the catalog described the product.
- a small
- easily removable
- allows you to plug directly to the Pi's I2C bus with no soldering required
- uses a unique friction-based connector that wedges itself onto the GPIO header for a secure, solderless connection
Particularly the word "friction-based" intriegued me and I was excited about using it.
But as soon as it arrived, I was disappointed. There is no friction at all. The connection is so flaky that it is almost unusable.
So I decided to fix it. I wanted to make the Qwiic SHIM as reliable as the Qwiic HAT. Thankfully it worked out. Here is what I did.
- Solder iron
- Solder wire
- STANLEY 10-499 Gray,Carbon Steel Utility Knife
- Sandpaper or nail file
- Cut the GPIO Header in a way one end has 6 pins.
- Clean the edge with a knife and a sandpaper
Now the connection is just as tight as Qwiic HAT!
It is pretty disappointing that the catalog description is misleading. If one really does not want to solder, s/he should get a Qwiic HAT in the first place. I am hoping this informs somebody.