Need to troubleshoot your sewn circuits? Find some solutions to common issues here. Many of the guides you’ll find online refer the Lilypad E-textiles kit, but the concepts are the same for any sewable microcontroller, like the Circuit Playground Express.
Oops! one of these LEDs is flipped in the parallel circuit! The polarity issue will need to be fixed in order for this to work.
In this photo, the maker took out the stitches to the second LED and is re-sewing it with the correct orientation.
Fixed! Here you can see the re-sewn circuit with the negative pad of one LED connecting to negative pad of the second LED, and positive sewn to positive.
Sparkfun’s guide to troubleshooting e-textiles Short Circuits
Watch out for short circuits! Check out Sparkfun’s e-sewing page for great tips
Be sure to tie your knots tight and clip the ends close so they don’t cross over other threads.
Sew Electric has many helpful e-textile tips on their website and in their book Conductive Materials for sewing
Learn about all the different types of conductive textiles available at Adafruit! Becky Stern provides a guided tour.