![]() Be careful not to touch the live AC input while the system is plugged in. Removing the case will reveal the 220V AC power input, the 24V AC-DC converter, a Silicon Labs EFR32 board with low-side PWM driver, and a set of parallel LED outputs. Using the Torx driver, remove the four screws by turning them in a counter-clockwise direction. If it breaks, you get to keep both pieces. These modifications will void your warranty, so don't contact Ikea if you're confused about these steps. In order to do so, you will need a cross-head screw driver, a Torx driver, a soldering iron, an Arduino or Teensy, and some MicroPython experience. I like to take things apart, and recently I've been disassembling Ikea Tradfri/HomeSmart devices to see what is inside of them. This is a an expanded verison of a short talk that I gave at ThingsCon 2019 on installing MicroPython onto Ikea's HomeSmart devices. Some of them have accessible SWD programming headers allowing openocd to debug and modify the firmware. Ikea Tradfri LED power supplies with wireless receiver are cheap and easily modifiable.
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