A while back I bought a QI charger PCB off eBay for $3.55. I wanted to build a wooden phone dock with built in wireless charging. I still had some wood scraps my neighbor gave me a while back, which is why the project including all materials cost me < $5.
The QI charging PCB:
Continue reading “QI Charger”
After doing a video of an endurance hiking competition, where I did a lot of handheld footage walking with the hikers, I realized that I need some kind of camera stabilizer. The commercial units are unfortunately out of my hobby-filmmaker budget. I looked around for DIY solutions and came across this DIY build:
Continue reading “DIY Steadicam”
A while ago I came across a picture of a headphone amplifier in an Altoids tin. Even though I don’t have headphones that necessarily require an amp (Audio-Technica ATH-M50) I decided to go ahead with the build. It’s an easy enough project to build in a weekend. I followed this excellent tutorial with a few modifications. I built the single 9V battery version. I ordered all my components except the pot from DigiKey. I ordered the pot from Mouser. I still had a bunch of perfboards lying around from previous projects and used one of them. The total cost for the parts came to around $30. Unfortunately DigiKey doesn’t show you the shipping cost on checkout and to my surprise they charged me $30 for regular UPS ground shipping. I contacted their support and apparently there is a shipping cost calculator link somewhere during the checkout process. Seriously DigiKey, it’s 2015, update your website.
Continue reading “CMoy Headphone Amp”