Timofte Andrei wrote this instructable detailing the build of his Arduino home automation system: For this project I’ve used: 1. An Arduino clone 2. SIM900 GSM SHIELD 3. Relay module 4. 2×16 LCD Display 5. DS18B20 temperature sensor 6. Push button 7. Some Dupont wires 8. A led module (this is optional, if you have a chinese […]
Category Archives: DIY
DIY vacuum tube amplifier
Ethan of Protofusion designed and built a stereo vacuum tube amplifier based off of the TubeLab SimpleSE design.
SG90 servo controller
Zoltán of PakaHuszar is working on a SG90 servo controller: The original idea was the following: TI Launchpad + SG90 servo, connected to a PC via USB port and it can be controlled from there.
Curious C-beeper
Electronics DIY published a new build, the Curious C-beeper: Curious C-Beeper is a fun to build little probe that can be used to quickly detect the capacity of capacitors in pF nF range, test their stability with temperature changes, find broken wires, locate wires, trace wires on PCBs, and to locate live wires behind the walls […]
Sound activated switch
A sound activated switch project by Rajkumar Sharma of Electronics Lab: Clap switch/Sound-activated switch designed around op-amp, flip-flop and popular 555 IC. Switch avoids false triggering by using 2-clap sound. Clapping sound is received by a microphone, the microphone changes the sound wave to electrical wave which is further amplified by op-amp. 555 timer IC […]
Light Appliance – Remote controlled 32×32 RGB LED Matrix
IR remote controlled light appliance application for the 32×32 RGB LED Matrix by Craig Lindley, that is available at Github: My latest creation, the Light Appliance. This device displays various graphical routines (plasmas, fractals, etc.), animated GIFs, displays time, date and temperature, can be an open or closed sign for a business and a mood […]
Lasercut strip feeder for your pick & place
Do you need a strip feeder for your pick & place? Felix of LowPowerLab shows you how to easily make a DIY strip feeder: So let’s make a strip feeder. I have lots of components that are less than a full reel (exotic resistors, transistors, crystals, caps, mosfets etc). Most of these are 8mm and […]
Digital Zoetrope
Sholto wrote this instructable detailing the build of his digital zoetrope: A zoetrope is a mechanical device that animates a series of pictures by spinning them fast enough that the images appear to merge together and move, My digital zoetrope works on a similar principal, by flashing the LEDs while they are spinning it is possible […]
Mini FM transmitter
electronics-diy shows you how to easily make a mini FM transmitter: It transmits FM waves so you could easily receive the signals on your mobile phone, radios, etc. As the name and the picture indicates it is very small and is approximately the size of a 9v battery clip. With this FM transmitter you could […]
PIC-18 Breakout with ICSP
A breakout for 18 pins DIP package Microchip PICs by Electropepper, he writes: I needed to make a small test on some old chips i had, so i came up with a quick hour and half, break-out board for most PICs DIP-18 sockets. I also included an ICSP header. I have been using this mostly to […]
Flux capacitor – Back to the future
n1cod3mus made this flux capacitor from Back To The Future. He writes a complete step-by-step guide on the Instructables site: Since the release of the film back in the 80s I have been obsessed by the film Back To The Future watching the trilogy repeatedly. I watched it at the cinema over and over, I […]
LM386 low voltage audio power amplifier
Zx Lee published a low voltage audio amplifier build: Today, I am going to share on how you can make a low voltage audio amplifier. For this project, I am using LM 386 Audio Amplifier, which is commonly used among electronics hobbyist. I will break the article into a few sections. First, I will explain about the […]
Solar scare mosquito
Here’s a cool Solar scare mosquito project by Gallactronics. He writes a complete step-by-step instructions here: So I built a device that generates air bubbles at regular intervals and effectively produces ripples up to a radius of 2 meters (sufficient for most urban water bodies). The device automatically switches on when it comes in contact with water […]
OpenCdNC – CNC project made from CD-Rom drives
Leonardo made this DIY CNC machine from CD-Rom drives, that is available at Github: Hardware 1x Microchip PIC16F628A 3x Easy Driver v4.4 Step Motor Driver 1x PL2303HX USB-Serial TTL Converter 3x CDROM Drives Some wood/screws for frame and wires for electronics Via Hacked Gadgets. Check out the video after the break.
A DIY laser engraver build using DVD and CD-ROM/writer
Here’s a DIY 38mm x 38mm laser engraver build using CD-ROM/writer on ATmega328p by Davide Gironi: A laser engraving machine, is a tool that uses lasers to engrave an object. To build this tool I’ve used two old CD-ROM writer that lays around in my garage. The X/Y positioning system it is build using the CD-ROM motor […]
6AS5 and 6N2P vacuum tube base guitar amplifier
Another Dilshan Jayakody’s cool project, a vacuum tube base amplifier project based on 6AS5 pentode and 6N2P dual triode: This is our first vacuum tube base amplifier project and this project is based on 6AS5 pentode and 6N2P dual triode. Schematic of this project is not designed by us and we got it from web. We got […]
Constant Current Electronic load
Juan of ssihla build this DIY electronic load. He writes: The design is based on some of the various diy electronics loads out there (like the one from Dave Jones). The mosfet is a P45N03LT , most likely I took it from some of the PC power supply I’ve “recycled”. I’m using two 25k potentiometers, one for […]
Nixie tube clock
Tom Cousins of DOAYEE made this DIY nixie tube clock: Below is the schematic for the project, as you can see I’m using 6 IN12 nixie tubes, each with it’s own 74141 nixie tube driver. These drivers are great! They simply connect directly to the nixies and display whatever 4 bit binary number you give them […]
Pick and Place controller v3 part 2
An update on Brian’s Pick and Place controller v3: Following from the previous Pick and Place Controller V3 Part 1 post we have now built and installed the new control board for the pick and place machine. While building and testing the board we found an issue with one of the pins on the main microcontroller […]
Mini LED volume towers (VU meters)
Here’s a cool Mini LED volume towers project by Ben Finio. He writes a complete step-by-step instructions here: The inspiration for this project started when I saw a variety of awesome stereo LED towers on YouTube (also referred to as VU meters). Many of the videos showed the end result, and maybe a slideshow of the […]