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Showing posts from 2018

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Product Design of a 4 wheel differential drive robot

Inventory App for hobbyists

I used to buy a lot of small electronics component and sometimes store it for future use. The problem is sometimes it is hard to keep track of what you have in your collection. I find it hard to find any free inventory app that does the job. There are pretty good paid software, if you want to use it for some shops/warehouse etc. So I made an app that does the job. It is build using nwjs framework. You can find the whole source code + binaries on my github page. Searching the inventory item Adding entries Modify entry Delete entry

Raspberry pi based Car Infotainment system

Out in the market, there are a handful of car infotainment systems that you can buy for 10 to 30k INR. But nothing beats the thrill of making one from scratch and put it on your own car. So this is my effort to make one from the scratch. At heart, it is a raspberry pi 3 Model B single board computer. For those who don't know about raspberry pi, it is a single board compute with a Quad Core 1.2GHz Broadcom BCM2837 64bit CPU with on board WiFi and Bluetooth. See this for a complete spec. It is connected with a 7 inch multi touch display running Ubuntu Mate (a Linux variant). Os is modified so that it is only running the bare minimum services to run the system. It will save the boot up time and improve performance a little bit. It is connected to a GPS module via UART to get current location. It is used in the navigation section. It is also used to get time, when the device is not connected to internet. It uses google map API for navigation. The complete infotainment system is