Autor: feedc0de
-
Bobbycar ride: Getting energy drinks from citypark
We plan to do a longer ride to the shopping centre citypark because Spar has a nice offer for 50% off on energy drinks. We will use the bobbycar trailer to transport the cans to our headquarters 🙂 First of all lets charge the bobbycar to 100% to not run out of energy: The pallets…
-
Dead BMS and more charging power for the bobbycar
At the end of 2019 there has been a congress held by CCC in Leipzig. Lots of accidents have happened, the throttle and breaking pedals were toren off, the BMS died, a frontal crash with a public bench has bent the steering wheel and much more. But let the pictures speak for themself: Dead BMS…
-
Adding WiFi to the bobbycar and creating an ESP32 GUI library
In one of my last posts I reported that trying out new parameters like a higher speed limit, higher current limit, enabling field weaking and other changes always require me to completely disassemble the bobbycar and everytime I have to do that, I scratch my hands alot and I start bleeding. It’s about time to…
-
Making a cheap electric bobbycar
Today we try something completely new! Let’s build an electric bobbycar, with 4 motors attached to a bobbycar kids toy chassis, with integrated battery pack for small, short rides in the city! We will reuse the Motors, Electronic PCBs and maybe also the battery of old (broken) hoverboards. That should make the electric bobbycar really…
-
Reducing the inrush current of a power distribution box
In another post I reported about my shitty fuses in my flat that constantly go off, whenever I turn on my power distribution switch for my main PC. It looks like the initial high current that fills up the capacitors trips the 16A fuse. My idea to solve the situation: Decrease the rush in current…
-
Fixing the overheating problems of the homeserver
Remember my last post about my new homeserver, where I wondered if there will be enough air circulation for cooling the CPU? Well turns out, the CPU was running at around 80°C for weeks now and the fans are either stuck or are rotating but practically no air is moving through. The whole design of…
-
Abusing free amazon prime photo storage
Amazon Prime membership includes 15GB cloud storage and unlimited photo storage. Since I already wanted to create a backup of my storage raid, I thought it would be nice to upload all my files encoded as pictures. I came up with a simple tool that converts files and folder structures into pictures, and allows you…
-
Making dumb lamps smart with free amazon dash buttons
In my previous post, I showed how any dumb device can be made smart by putting a relais in series to disconnect its power source. This time I do the same to my lamp! First of all my ikea lamp on the ceiling is complete shit. You have to stand up, go to the light…
-
Making dumb wireless power plug smarter with an ESP8266
This time I was adding an ESP8266 devboard and a relais to a dumb power plug, to allows us to control all sorts of loads over the network, for example for standalone lamps. Lessons learned: Don’t forget to add OTA functionality as it will be very hard to update the software on the microcontroller otherwise.…
-
Adding more disks and UPS to my homeserver
My initial raid array is starting to getting 100% filled up with movies, series, music, wikipedia and other wiki dumps, temporary torrents, a warez share and so on. Time to order new disks! Disks nowadays have much more capacity at a lower price so this upgrade consists mostly of 10TB disks. My homeserver enclosure and…