Background I followed the very good instructions by @Anton for both the first “8mm Film Scanner”, and for the V2 version with improvements made to the base unit mount plate and film plate.I 3D printed all parts in PLA. The electronics hardware...
This little guy was donated to me with no battery and in unknown working order. I was able to get it powered externally and downloaded the app. after many attempts and resets, it failed to connect to the app. The app is its primary control input and...
I made this 3d printed high torque worm gearbox. It called also winch, hoist or crane. The gearbox uses a 775 12V 13000 RPM (100 Watt) brushed DC-motor which it has 0.074 Nm torque and 13000 rpm. This 3d printed gearbox had a gear ratio of 98:1. So the...
ABOUT THE CIRCUITSI know very little about how these circuits actually work– 99% of the circuits come from the internet, especially the following places:– electro-music.com DIY forum– electro-music.com Lunetta forum– Nicholas Collins’ “Handmade...
▲Latest censor attempt by Nokia Corporation.▲Support by Hackaday staff. Note: This is NOT a custom ROM for Nokia phones. It is a freshly designed PCB with exactly the same dimensions as the original PCB of the Nokia phone, so it can be...
This article was sent to us by one of our early adopters who develops a DIY hydroponics system at home and uses our service for it. We are happy to publish it here. Recently I got the UniPi board and decided to test the Cloud4RPi service on a real-world...
Things used in this project IoT Long Range Wireless Temperature Humidity Sensor with power source Battery Or External DC.Zigmo/Router for PCXAMPPPC/Laptop with an OS installed or Any IoT Embedded Device.Story Introducing NCD’s Long Range IoT Industrial...
Way back in the late 80s, I remember seeing a TV show (I think it was Amazing Stories) which featured an interesting clock. It was round, black, about the same size as a normal wall clock, and all done up in LEDs. The LEDs appeared to be what I now recognize...
It's intended as an educational toy for my 2 year old son. The idea is that he plays with letters and numbers and eventually spelling and maybe even math.As mentioned above, there is a PS/2 keyboard attached to an ATMega328-P programmed using Arduino....
Video GenerationThere are several very good references for understanding how TVs are controlled by a pulse sequence. I particularly liked the Stanford EE281 Handout #7 entitled "TV paint". Also very useful were Software generated video, by Rickard Gunée,...
I decided to build a FP with 8-bit exponent and 9-bit mantissa (and with no NANs, infinities, denorms or rounding).The sum of the bit-lengths (plus one sign bit) means that the FP number fits into a 18-bit M4K block word on the CycloneII FPGA. The 9-bit...
The plan here is to build up intuition for HiD representations in parallel coordinates:points -- The basic representation of points as lines in PC.lines -- The observation that lines map to points in PC.planes -- Hyperplanes can be detected visually.clusters...
The Circuit The circuit is a standard pulse generator using two 555 timers (in a single package). Approximate rate adjustment is 1-100 Hz, pulse width is 1 ms-0.5 sec. In single pulse mode, one pulse of the set width is generated when the trigger button...
The outer shell material is black expanded pvc painted with blacklight sensitive acrylic paint. The UV paint was actually transparent, so there's a layer of white primer underneath. The "frame" is just small segments of 2"x2" anywhere the plastic forms...