Simple design just holds everything together solidly against the fabric.Set on the right can accommodate up to 3; currently configured to hold 2 and a bolt in the empty spot to help hold it together.Setup on the left can accommodate 4, currently holding...
Last night, I spent 4 hours or so sewing the leds and the gemma onto the hoodie. I made a pocket for the battery also. After the sewing and a couple of quick tests with the multimeter, power was applied and everything worked beautifully.You...
As each piece of the electronics were tested individually, it was finally time to mount everything in the electronics bay. The IMU was mounted in the front so that it picks up even the smallest changes in rocket orientation. The rocket electronics went...
Well, I know it's not a typically "connected" gadget or tool, but as I understood, it just has to be somehow connected and open source. So, I had this idea two years ago and the hackaday prize is a good incentive to develop it further. Next step will...
The T-1 project blog is beginning to get a bit unwieldy, so I have decided to document the computer sub-systems as separate projects, and use this one as a 'top level' project to tie everything together.The ferrite core memory is the first sub-project,...
The case is made out of 4 layers of 3mm acrylic, a small sheet of 1,2mm plastic to hold the pcb in place and 4 3mm vinyl screws and bolts. The bottom layers got some cutouts to make room for the lipo cell and to safe weight. Everything is drawn in Autocad...
The goal was simple: blink a LED, connected to PPI 82C55. The program is straightforward: set all ports to output, change PC7 to 0, wait a moment, change PC7 to 1, wait a moment. Repeat. But... At first everything went OK: voltmeter shows me...
The 1st prototype is mostly based on standard boards / modules, mixed together with 2 pre-drilled protoboard What's inside : NodeMCU (ESP8266) from Robodyn : https://robotdyn.com/wifi-nodem-esp8266-cp2102.htmlAdafruit 1.8 TFT LCD with...
Finished with the 2.9" EPD and tested the following - Basic text and Numerical display using font library by STM- Displaying Images - Generating QR code with just a text string - Basic animations using partial refresh of EPD So, I...
Did the final debugging of the control box. Electrically everything was pretty good. The only issue I saw was that when I set a 50% dutycycle it was around 7% off and this offset was across the range. So I fixed that and software and it all works now....
To try to prepare for ramping up production, I built the next 4 guns as efficiently and uniformly as I could. It went pretty smoothly, and it's really exciting to have 8 guns to test with now. I really hope everything else scales well. I'm mostly concerned...
It turns out the GPS receiver ist not working all the time. Somehow i only get 1-2 location-readings per 20 minutes. I don't know why. Now i put everything in a box and test it outside the helmet. Maybe a 5v step-up is noisy and only a proper...
This is probably much simpler and cheaper than the previous approach. A 20 x 0,5 mm copper strip is connected to a 4 mm2 standard solar cable with a crimped-on ring ferrule. Everything is protected by a 3d-printed case for isolation and strain relief....
Installing CCS from the CDROM asks what components you'd like ton install: Everything or "You pick the right things".Since I didn't know what the right things were, I chose the "Everything" box.Big mistake.Everything installed (after a Looooong...
It's alive! Everything is wired and almost all mounted in the case. I'm testing the software, and once that checks out, I will (try to) make everything look pretty inside the case. I am currently running in atomic mode--solely based on the Rubidium 1...