#TwoMinuteTeardown: Wozniak WPX-0001 Qi Tester
Qi wireless power tester
The Qi standard for transmitting power is ~ 15 years old and has been ubiquitous for at least a decade now. And yet, I have only recently seen any testing equipment for it.
The Wozniak WPX-0001A is a simple tester that can measure the output level and protocol of Qi chargers.
'standard tools create wonderful things' ❤️.
Please ignore the super shiny reflections...
In the box you get a basic NTC probe, a USB-C cable and the tester itself.
The printed paper “manual” is just a QR code that points to user.ee-lab.cn.
Yep, more reflections/glare. Sorry!
The unit is made up of two circular PCBs screwed together. The screws are hiding behind the decal face plate.
Take your time here and use a heat gun to soften the adhesive… or you risk breaking the plastic cover.
Three of the four screws can be seen here. The remaining screw is hiding beneath the remaining decal shard.
The LCD is also glued in place. The ribbon cable is just long enough; putting it back together is a bit of a pain.
The non-covered gold-plated traces and black silkscreen pop. Unfortunately, most ICs are either too small for me to read or the marking have been laser etched off.
The business-end of the tester is a Qi receiver coil. It’s two coils of magnet wire and some magnets. Nothing special here.
The snaking black cable is the NTC probe.