Tag: C++

Evil Eye Tech Experiment

Evil Eye Tech Experiment

This wasn’t so much a useful project as it was an experiment with some technologies I’ve wanted to play with. Capacitive Touch sensing LED Multiplexing PCB Art   I thought I could combine them to make a stylized Turkish “Evil Eye.”  It would: Sense when you […]

Parking Lot Gate Brute Force Scanner

Parking Lot Gate Brute Force Scanner

My apartment building has a remote-controlled gate to the parking lot.  The remote has a secret 10-bit key encoded in it for security. Recently my remote broke and in replacing it I thought about how hard it would be to make my own remote.  I […]

3,900 Mile Radio Transmission

3,900 Mile Radio Transmission

This project was a prototype replacement for the transmitter on my long distance pico balloons (link).   The pico balloon flight computer uses APRS which: Takes 5 seconds for each location transmission Has a range of 150 miles   The duration is good.  Short messages […]

Long Distance Balloon Tracking

Long Distance Balloon Tracking

After I did the 100,00ft balloon photography, I wanted to make further use of the APRS radio transmission tracking technology.   I became interested in “Pico” balloons, which I’d seen references to, which consist of: A small battery-powered “tracker” flight computer A small balloon Time […]

Photography from 100,000ft

Photography from 100,000ft

I set out to take photographs at an altitude where I could see the curvature of the Earth.   The premise: Float a balloon to an altitude where you can see Earth curvature Have a camera rig suspended below it, taking pictures continuously Computer system […]

Music Controlled Colored Light

Music Controlled Colored Light

I became interested in understanding more about processing sound, and relating that to frequency distributions. I had the idea of making a device always listening to the environment and to color a light based on the sharpness of the sound it heard. Ideally, it would […]

Indoor Outdoor Thermometer

Indoor Outdoor Thermometer

I had bought some temperature sensors and thought it would be fun to make my own Indoor/Outdoor Thermometer.   Technologies Microcontroller Temperature sensor DS18B20 (first time) Servo motors Chopsticks, paper plates     Research and Build The primary difficulty was learning how to operate the […]

Ho Ho Horrifying

Ho Ho Horrifying

This project is just for laughs, but still got to practice a few technologies. It’s Christmas time, and I wanted something Santa-related.  I also wanted to try out some ultrasonic measuring modules I picked up. The result is a Santa doll that notices your presence […]

Time Lapse Linear Stepper

Time Lapse Linear Stepper

This project came from an idea I got while disassembling a printer for parts. The print head slides along a track, driven by rotary-encoder-controlled motors. I thought it’d be fun to make a device which drives a sliding mechanism.  And why not make it a […]

Home-Built PCB and Embedded Controller

Home-Built PCB and Embedded Controller

I wanted to make a PCB with some nice lights on it to flash and be animated, so I looked into how to do it. The LEDs would be driven by a microcontroller and all powered externally.   Technologies PCB Layout software (Eagle) AVR Atmega328P […]

Wireless Digital Radio Signaling

Wireless Digital Radio Signaling

Like many projects, this was an opportunity to try out some technologies and make a fun toy in the process. The objective was to create two boxes with wireless capabilities to allow two people to communicate with one another remotely. Press a button on your […]