Teardowns

The Leikr Multi-Sport GPS Watch

The year was 2012 and I was using a Garmin Foretrex 401: The GPS market at the time was dominated by Garmin - with one or two exceptions. These were your choices in 2012: Timex Ironman Triathlon - surprisingly good for diving.Garmin Forerunner 205Garmin Forerunner 305 Needless to stay that most devices on the market...

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Xiaomi Precision Induction Cooker Teardown

Xiaomi Precision Induction Cooker Teardown
Just in case this is useful to someone, here are some photos of the inside of a Xiaomi Precision Induction Cooker. The device uses an ESP8266 WiFi Microcontroller as it's main controller, which is seemingly attached to a power supply board and thermal sensors via I²C. Xiaomi Precision Induction Cooker Top RemovedXiaomi Precision Induction Cooker...

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Reverse Engineering a Solar Inverter Telemetry Protocol

Reverse Engineering a Solar Inverter Telemetry Protocol
A look at the protocol used by the Must Power PH1800 inverter and integration into Home Assistant.

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SlingStudio HDMI/WiFi Transmitter Teardown aka GIF ME ROOT

A dump of photos taken during a teardown of a SlingStudio Transmitter. I couldn't see any obvious serial console. The HDMI signal enters the ARM SBC through an HDMI->CSI bridge chip (also available for the Raspberry Pi, and something I've previously blogged about) called the TC358743XBG. Of interest is the relatively high performance WiFi card,...

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Experiences with an Axpert 5K King Inverter and a Pylontech LiFePo4 US3000 Battery Pack

I recently had the privilege (and pain) of being able to experiment and install a PylonTech US3000 battery pack. In typical Chinese-product fashion (Xiaomi and DJI excluded) the manuals and technical documentation for both of these devices is muddled, missing and often plain incorrect. I've learnt a few things through trial and error and for...

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Barebones Zigbee Router: The nRF52840 (PCA10059) Dev Dongle from Nordic

Barebones Zigbee Router: The nRF52840 (PCA10059) Dev Dongle from Nordic
I recently started setting up a home Zigbee network - partially to experiment but also to try and reduce the number of esp8266-based devices on my home network. esp8266s are great, but I've discovered that they're noisy in that they seem to emit a lot of 2.4GHz interference (calibrating them helps though). Tasmota on esp8266...

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