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Bosch Power4all Batteries to Makita modSeptember 05 2021 20:10:59

Bosch has a new battery system - power4all. This means their batteries are now interchangeable. Unfortunately, it's got an unique identifier and thermistor it requires which means it won't work with Makita batteries out of the box. The Bosch powe...[read more]

Tracker improvementsSeptember 05 2021 00:23:25

It's been a while since I've released a new version of the tracking software. This version includes LBS geolocation for JIMI devices - massive improvements in WiFi accuracy and more. You can find the link below this post to download it and try it...[read more]

Geolocation monopolyAugust 08 2021 15:06:19

For the tracker software/project hosted on this website I've chosen HERE as the location system - even though it's a lot less accurate than Google's location system. This is a cost based decision - google charges 200$ for 20.000 location requests...[read more]

Tracker update - Logins - Xexun support and moreAugust 08 2021 13:02:26

It's been a while since I've released a version of the tracker software. Since then a lot has changed - more people started using this website and I've had to fix quite a few bugs. In short: for all existing devices the port to use is now 9000 - ...[read more]

GPS Tracker Software UpdateJuly 05 2021 20:34:14

I've done some work to optimize the JIMI tracker server - and make it work with a later version of the JIMI firmware. This was prompted by somebody contacting me about testing one of these GPS trackers. You can find the code below this post. It i...[read more]

ES121 Screwdriver FirmwareJune 20 2021 19:48:13

The ES121 is an electronic screwdriver - that comes with open source firmware. It was interesting as a tool to me because it has more torque than a xiaomi screwdriver, and is of course programmable. ...[read more]

Seasocks based chat serverJune 07 2021 23:27:42

Seasocks is a websocket library made by Matt Godbolt that can be found here. It's an excellent lightweight library for websocket servers. For one of my personal projects I needed a websocket cha...[read more]

Megastek MT200 TrackerJune 07 2021 22:41:33

Since reverse engineering the JIMI AM01 I thought it was nice to reverse engineer another GPS tracker - one that supports 4g this time. The megastek MT200 is just such a device. The mt200 from megastek is one of the only 4g ankle monitors current...[read more]

VR headset linux desktopMay 12 2021 00:22:40

A VR headset as a linux desktop

I've recently gotten around to installing linux on my pico goblin VR headset to make a useable Linux desktop. In this blog post I'll describe how I did that. If you want to skip to the firmware - scrol...[read more]

JIMI AM01 Ankle Monitor Reverse EngineeringFebruary 28 2021 22:06:51

I recently came across the JIMI AM01 ankle monitor on alibaba - which is basically a personal GPS tracker.. of sorts ;) Except with a better battery life, and more advanced safety features. Being the awesome Chinese tech company they are at JIMI,...[read more]

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