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Posts Tagged ‘DIY’

DIY USB power bank from laptop battery

Tuesday, August 23rd, 2016

A DIY USB power bank made from an old laptop battery from DoItYourselfGadgets: A situation many can relate to: an empty smartphone battery and no outlet around! That's exactly why I recycled an old laptop battery into an USB power bank. This article will show you the basic powerbank circuit consisting...

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Posted in DIY, hacks | No Comments »

Light following bristle bot

Tuesday, August 16th, 2016

Facelesstech made a light following bristle bot and wrote a post on his blog detailing its assembly: There is one thing missing from all my projects so far…..Something that moves. Bristle bots are very similar to hex bugs but are built from toothbrush heads and pager motors. I thought the...

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DIY PCB inspection microscope

Wednesday, August 3rd, 2016

Saulius made a DIY PCB inspection microscope and wrote a post on his blog detailing its assembly: Despite how good microscope you have, stand is still very important part of final assembly. And while there are many commercial ones made of cast iron, they might cost more than a microscope head itself....

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Posted in DIY, tools | No Comments »

40 meter XCVR size of an business card with 1 watt output, 7.000 to 7.150 MHz coverage

Friday, July 29th, 2016

A business card size homebrew 40 meter XCVR project from Ray Ring: I tweaked my previous XCVR design to use push button tuning and made the board layout extremely compact. I improved the side tone injection to be absolutely  perfect – not too loud, full break in and no clicks. I went...

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Posted in RF | No Comments »

Programmable relay switch using PIC MCU (revised version)

Thursday, June 30th, 2016

Raj has documented his DIY programmable relay switch using PIC16F1847 microcontroller: Here are the summary of the features that this programmable relay switch has: On-board +5V voltage regulator (operates at 9-15V DC input) OFF and ON time setup for the relay operation Option for cyclic run (maximum 100 cycles, after...

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Posted in PIC | 3 Comments »

Remote controlled beer crate

Tuesday, June 7th, 2016

Niklas Roy blogged about his DIY remote controlled beer crate: The “remote controlled beer crate” is actually just a flat plywood platform on which standard sized beer crates can be placed. It is driven and steered by two windscreen wiper motors with direct attached casters. Two swivel casters in front stabilize...

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La Skala Arduino controlled ladder attenuator

Wednesday, June 1st, 2016

Dimdim has designed and built his own stepped ladder attenuator, controlled by an Arduino: A few years ago I had an encounter with a ladder volume attenuator. I loved hearing the relays clicking away as they dialed-in the desired attenuation. Ever since then I wanted to design and build one for...

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Posted in Arduino, DirtyPCBs.com | No Comments »

T-baneklokke – coundown clock

Saturday, May 7th, 2016

Joakim made a coundown clock for his wife and documented the whole process on his blog: The clock is built using an Arduino, and has a battery powered real time clock to remember the time while powered off. To make it truly stand alone I added the possibility to set the time...

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Posted in Arduino, clock | No Comments »

110v temperature controlled soldering station build no. 2

Saturday, April 23rd, 2016

Mike Doughty from PCB Smoke shared his DIY 110v temperature controlled soldering station in the project log forum: This project is build number 2 of a 110v temperature controlled soldering station. It is a follow-up post to the project that I was working on last October. Blog post with complete...

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Posted in project logs | No Comments »

A DIY wearable posture sensor

Wednesday, March 9th, 2016

Want to improve your posture? This wearable posture sensor from Coretech Robotics will remind you whenever you slouch and help you maintain a good posture: Posture sensors/monitors have been a recurring theme on this blog. They are supposed to remind you of your posture and prevent you from slouching, which...

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Posted in DIY, sensors | No Comments »

Music Thing Modular Axoloti control board

Thursday, February 25th, 2016

Tom Whitwell from Music Thing Modular built a DIY control board for Axoloti, that is available on Github: Axoloti is a very nice €65 audio board from Belgium, the closest thing I’ve yet seen to an Audio Arduino; lots of easy analog ins and outs for pots and switches, enough...

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Posted in open source | No Comments »

Quantifying cooling

Thursday, February 18th, 2016

Chris Palmer (a.k.a nophead) has designed and built this coolometer project to quantify the cooling effectiveness of various fan: I was wondering about how I was going to calibrate the airflow reading but then realised that the flow rate is not actually what I am interested in. It is the cooling effect...

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Posted in DIY, measurement | No Comments »

DIY synth building, part 2

Tuesday, February 16th, 2016

Here’s a video tutorial on making a sequencer circuits from Casper Electronics: Learn how to make a variety of musical pattern sequencers using a few common electrical components and a breadboard. See the part 1 video on building oscillators here.

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Posted in how-to | No Comments »

flip-flop/BCF project

Thursday, February 11th, 2016

Ray over at the diyAudio forum has been working on his flip-flop/BCF project: I've just finished a project to roll up the developments into a more 'finished' build, feeding the balanced outputs from the flip-flop board into a Broskie BCF buffer stage. I'm using Nicks MJ Statistical Regulator for the B+ and...

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Posted in DIY | No Comments »

DIY USB volume knob

Wednesday, January 6th, 2016

Markus Gritsch made a nice USB volume control knob for his computer: After having been inspired by this Instructable [1] I also wanted to make a nice looking volume knob to attach to my computer. It uses the TrinketHidCombo library [2], but on a Digispark board, to have one more...

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Posted in project logs | 1 Comment »

INA219 current sensor DIY Breakout board

Friday, January 1st, 2016

A INA219 current sensor DIY Breakout board project from Juan Ignacio: Another small board, this time for a INA219. The INA219 is a high-side current shunt and power monitor with an I2C interface. For testing I used Rei VILO library with a MSP430G2553 and Energia, and I measured the power consumption for...

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Posted in DIY, sensors | No Comments »

Paint Machine, a printer that prints small bitmaps on the street

Thursday, December 24th, 2015

Alex Weber has posted a new project on building a DIY Paint Machine, he writes: Here is my latest creature, the Paint Machine. It’s a machine the prints simple bitmaps with spray chalk on the street or sidewalk. Some of the key features: *dimension: width: 220cm, length: 38cm, height: 24cm, weight: 12kg...

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Posted in Arduino, DIY | 2 Comments »

Lab LED constant current controller board

Friday, December 18th, 2015

Ladvien blogged about his Lab LED constant current controller board project he made using DirtyBoard PCBs: A little lab controller PCB I'm working on. It centers around four high-power constant current circuits meant to be driven by an Atmega328's PWM. I hate working on anything mechanical in dim light; comes...

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Posted in DirtyPCBs.com, LEDs | 3 Comments »

Arduino Mini CNC Plotter Machine from DVD drives

Wednesday, December 9th, 2015

An instructables on how to make an Arduino based mini CNC plotter from old DVD drives by Ardumotive_com: For the X and Y axes we will use two stepper motors and rails from dvd/cd drives and for the Z axis we will use a small servo motor that moves the pen up...

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Posted in Arduino, how-to | 1 Comment »

Logic Sniffer in a 33.6Kbps modem case

Wednesday, November 4th, 2015

Peter Murray blogged about his Logic Sniffer case made from a 33.6Kbps modem box: I have had my Open Workbench Logic Sniffer for quite a while and I have found it to be a very useful piece of kit. I have recently ordered an expansion to upgrade it to a...

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Posted in cases | No Comments »

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