Eric of ElectronicHamsters wrote an article detailing his Uber home automation project: garage door sensor, battery powered mailbox sensor or door monitor, multi sensor, laundry room washer-dryer notifier, prototype of dog tracker, garage genie and remote control, smart mouse trap. Project info at ElectronicHamsters project page. Check out the project instructables here.
Tag Archives: DIY
Dead Macbook Pro logic board diagnosis
Louis Rossmann writes: Here I diagnose a board that has issues on PP3V42_G3H which caused issues with the MCP, whose clock circuit is powered by PP3V42_G3H! I go through my diagnostic process and mindset, and follow from beginning to end as I resolve the problem. Via Hacked Gadgets.
DIY ATX Bench power supply
@LuisMirandaAceb tweeted, “I started only with ATX PS and your breakout board but finally this is what I ended with… ”
LaserOscope project
Steve Schuler over at Science2.0 published a new build: A laser oscilloscope using Lego, littleBits, Erector set, and the Kano Computer Build a laser oscilloscope using Lego, littleBits, Erector set, and the Kano Computer. In honor of The International Year of Light I’ll demonstrate how use the Kano computer to drive a littleBits motor with an […]
Naked HDD activity indicator
Frank Zhao of Eleccelerator writes: Remember my Aquarium Computer? I thought the SSD looked boring, so I put a old-school HDD inside with all the guts exposed, and wired it electrically to spin and swing when there is hard drive activity (when the HDD activity LED blinks). Project info at Eleccelerator page.
Custom DIY RFID smart lock
In this video Craig demonstrates his custom DIY RFID smart lock project: The goal of this project was to design an inexpensive rfid door lock which could be opened via smart phone, and have all activity logged w/o utilizing any 3rd party servers or cloud hosting. Via Hacked Gadgets.
Mobile radio power controller ( MRPC )
Pete made a mobile radio power controller and wrote a post on his blog detailing its assembly: Before I began the installation of my Yaesu FT-8800 in my car I knew I wanted automatic power ON / OFF. This is a feature that I have always felt was lacking in my other mobile rigs as I am […]
Simple DIY lab power supply
Bajdi made this DIY lab power supply and wrote a post on his blog detailing its assembly: My DIY lab PSU has 10 binding posts in total. The ones on the left provide 12V, 5V and 3V3. The 12V output comes straight from the laptop power supply. The 5V and 3V3 are provided by a KIM055L and […]
DIY active differential probe characterization
An 1GHz active differential probe project by Daniel Kramnik: This project was an ultra high input impedance (0.5pF||30MΩ or better) high bandwidth differential oscilloscope probe designed, built, and revised over the course of two weekends for the 2014 MakeMIT hardware hackathon. It can be built for about $30 in parts, plus the cost of etching or sending […]
DIY dynamic electronic load
A DIY dynamic electronic load by Jay_Diddy_B over at EEVblog Forum: The dynamic load steps the load current so that the transient response of the power supply being tested can be observed. Features: 0-5A maximum continuous current 0-5A pulsed current at 330Hz Via Hacked Gadgets.
DIY smart RGB strip with BLEduino
Kevenlaker over at ElecFreaks has shared a Smart RGB LED strip with BLEduino project in the forum: Smart RGB LED Strip is based on the development of our BLEduino, using the Bluetooth 4.0, and the sample code written by EF men, by mobile phone APP, to control the switch of RGB LED strip, and the RGB LED color changing. […]
Infrared LED matrix
Jaanus made this infrared LED matrix project: I have lately been doing bunch of different LED matrices. One of the most interesting one is an infrared matrix, made out of old Soviet infrared light that was used for data transmission (if I remember correctly – in studios). We repurposed it to LED screen that is visible […]
MSP430 propelled pendulum clock
DickB over at the 430h forum built this cool MSP430 propelled pendulum clock: This pendulum clock is not only regulated by the pendulum, but it is driven by it. A hidden magnet in the pendulum swings past a hidden coil and induces a current. This is detected and then a current pulse is fed into the […]
Vodka vending machine
Ben Armstrong made this cool Vodka vending machine project: Designed to dispense alcoholic beverages in night clubs this project was design and built by myself and another team mate. Arduino hardware was used to program the device which include a stepper motor, an infra red sensor, two solenoid valves, an LCD screen, buttons and a […]
Simple wav player using Arduino
Kathy Yang of Elecfreaks writes: Integrated with the homemade low-pass filter, this Arduino-based simple WAV player is to send out PWM signal generated by UNO, then through the low-pass filter and make the PCM data stored in the flash of UNO into sounds. Basically, the player cannot be regarded as a pure WAV playback, because […]
ytimer: Visual feedback timer
Here’s an update on Aon’s boards from DirtyPCBs we covered earlier, a visual feedback timer project: Here’s what became of one of the boards after a bit of soldering and programming: a countdown timer with visual indication of when the time’s up instead of an alarm (there’s a place for a piezo buzzer on the […]
DIY shake LED Stick
Kathy over at ElecFreaks shares his DIY shake LED stick in the project log forum: The principle of shake LED stick is based on that people have persistence of visual senses. When you light up a column LED at different moments in different ways, shake it, and a very beautiful picture will display before your eyes. […]
DIY stroboscope
ReturnZero published a stroboscope build: At its heart, a stroboscope is just a rectangular wave generator hooked up to a light source. I wanted a few extra features to make it nice to use: Ability to set flash rate by either frequency or RPM Set duty cycle of output without affecting flash rate LCD display […]
Voltmeter clock project
Here’s a voltmeter clock project based on a multimeter clock design by Alan Parekh: I have used three voltmeters and mounted them on a wooden plinth with a clear Perspex cover to give the clock an industrial look. I have modified Alan’s code to run on PICBasic Pro version 3. I have also added the […]
+/-12V dual power supply
A power supply build by Rajkumar of Electronics Lab: This project is a solution to power up most of devices or projects requiring dual (+/-12V) power supply. Symmetric +/-12 VDC power supply has been designed for audio applications, can power up microphone pre-amplifier, audio buffers, audio mixer, distributions amplifier, headphone amplifier, VU meter and few o other […]