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Posts Tagged ‘DIY’

Open Trickler: The DIY smart powder trickler

Wednesday, May 1st, 2019

Eric Higgins has a nice build log on his Open Trickler project a bluetooth-enabled smart powder trickler from off-the-shelf parts for under $60: Fundamentally, this is not a hard problem to solve. Read the value from the scale, run a motor that moves powder into the scale, turn off the...

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Posted in DIY, R-Pi | No Comments »

Wifi based DIY 5V switcher for led-lights

Friday, March 15th, 2019

Albert posted a detailed how-to on building DIY ESP-12F based USB-5V switcher: 5V powered 100LED circuit was consuming around ~1.8Watts(though 5.1Ohm series resistor was really hot) and the brightness of the LED's were not bad, especially difference between first led and last led brightness didnt bother me it was hardly noticeable...

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Posted in tutorials, wireless | No Comments »

Outdoor UV index sensor

Tuesday, February 19th, 2019

A detailed instructions of how to build this outdoor UV index and ambient light sensor from Mare & Gal Electronics: The VEML6075 senses UVA and UVB light and incorporates photodiode, amplifiers, and analog / digital circuits into a single chip using a CMOS process. When the UV sensor is applied, it is able to...

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Posted in how-to, sensors | No Comments »

Homebrew SDR HF transceiver

Thursday, December 13th, 2018

Simonhk (G0FCU) wrote a series of posts on building homebrew SDR HF transceiver: However, what you might notice is the presence of image products in the waterfall. The processing of the signal suppresses all but the very strongest of these so they don't appear as audio but it is mighty confusing...

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Posted in SDR | No Comments »

Wyostat: Open source Thermostat Pt. 1

Thursday, August 2nd, 2018

Kevin has been working on building his own thermostat, that is available on github: Does the world need another connected thermostat? When my thermostat went on the blink last winter, I looked at Nest, and Ecobee, and the other me-too thermostats, and I decided I would rather build my own....

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Posted in hacks, open source | No Comments »

Rombus pinball – a LattePanda mini pinball machine

Friday, May 18th, 2018

Matt Brailsford (aka Circuitbeard) has a nice write-up about building his mini pinball machine with a lattepanda core running dual monitors: I generally start my projects by thinking about the hardware that I’m going to want to use as I’ll need to know sizes when it comes to the design phase....

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Posted in Arduino, DIY, gadget | No Comments »

Making YBCO superconductor

Monday, March 5th, 2018

https://www.youtube.com/watch?v=sLFaa6RPJIU This video describes how to make and test your own YBCO superconductor by Ben Krasnow. More info on his blog here.

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Posted in how-to | No Comments »

Retropie plug in USB speaker

Monday, February 12th, 2018

A detailed instructions of how to make this DIY retropie plug in usb speaker from Facelesstech: The 2 down sides to my ZeroBoy build I did recently were that it didn’t have a build in battery power and that it didn’t have sound. I seen that the MintyPi was using...

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Posted in R-Pi | No Comments »

Custom 3D printed magnetic encoder disks for robotics projects

Friday, January 26th, 2018

A how-to on making a custom DIY magnetic disk encoder by Erich Styger: I’m making great progress with the firmware for the new Mini Sumo Robot (see “New Concept for 2018 Mini Sumo Roboter“). The goal is a versatile and low-cost Mini Sumo robot, and the robot comes with the...

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Posted in 3D fabrication, how-to | No Comments »

Arduino controlled Dual Mono AK4490 DAC (part 2)

Wednesday, December 27th, 2017

An update on Arduino controlled Dual Mono AK4490 DAC project we covered previously: After I was certain that everything related to the software was working the way it should, I designed a “motherboard” that would take care of the following: Accept the STM32F106 board Accept the 3.5″ TFT Accommodate an...

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Posted in Arduino | No Comments »

Bus timer project

Thursday, December 7th, 2017

Limpkin published a new build: For once, this project was not for me... it was for my wife ! Every morning she takes the bus then train to go to work. If she misses her train, she has to wait for more than 30 minutes for the next one. Not...

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Posted in DIY | No Comments »

Microcontroller action potential generator

Monday, August 21st, 2017

Scott Harden writes: Here I demonstrate how to use a single microcontroller pin to generate action-potential-like waveforms. The output is similar my fully analog action potential generator circuit, but the waveform here is created in an entirely different way. A microcontroller is at the core of this project and determines...

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Posted in AVR, how-to | 1 Comment »

DIY NAS

Thursday, May 25th, 2017

A DIY NAS project from Peter Scargill: So I’ve had a fair experience of these systems. Well, this blog entry isn’t about expensive NAS systems. It’s about a cheap one… really cheap that is – and DIY. How cheap? Well, about £12 depending on what you have handy. For this price...

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Posted in DIY | No Comments »

Creating custom 3D printed LED bar graphs

Thursday, May 11th, 2017

Glen Akins has a nice build log on his 3D printed LED bar graphs: While building my zombie containment unit, I decided I wanted some LED displays or bar graphs to complement the containment status video running on the smaller secondary video monitor. Some other containment units used LED air...

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Posted in 3D Model, LEDs | No Comments »

Build an open source laser reflection barrier

Tuesday, May 9th, 2017

Boris Landoni from Open Electronics writes about an open source project laser reflection barrier: It allows us to detect the presence and passage of an object thanks to the combination of a laser diode which emits a light ray and a phototransistor which detects reflected light. Robotics applications and industrial control systems...

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Posted in how-to, open source | No Comments »

Simple 3 phase Arduino energy meter

Wednesday, March 1st, 2017

Simple 3 Phase Arduino energy meter from The DIY Life: Again, with this meter I was going for simplicity. Sure, for perfectly accurate measurements you need to measure both the supply current and voltage but for this application and in the interests of keeping the energy meter simple and safe...

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Posted in Arduino, how-to | No Comments »

Muxtronics open source 12V powerbank

Monday, January 23rd, 2017

A custom 12V powerbank for Cube i7 Stylus from Muxtronics: Why would anyone even try to build a power bank - i.e. an external battery for charging mobile devices - these days? These things are commodity, it's impossible to compete. Right? Well, that is until you find out that the type...

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Posted in open source | 1 Comment »

Input filter and preamplifier – Jupiter modular receiver

Tuesday, October 18th, 2016

Vasily Ivanenko blogged about his input and RF preamplifier build: Above — Build of the input and RF preamplifier stage. I put in a 0 or 6 dB attenuator right at the input. That's double-sided Cu+ board with copper vias joining the 2 surfaces intermittently and also at crucial ground points....

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Posted in DIY, RF | No Comments »

Ultrasonic Anemometer

Tuesday, September 13th, 2016

Lukas Fassler has designed and built an Ultrasonic Anemometer project with Dirty Board PCBs. Full details at Soldernerd homepage.

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Posted in DirtyPCBs.com | No Comments »

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 »

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Recent Comments

  • Max: Seems like an unexpectedly violent way to remove the chip indeed. A hot air station should of course do the job just fine, but in...
  • jose: Part removal described here is pure butchery, the cheapest hot air station will do a fast and clean job removing the QFP, heat air to...
  • Cody: Yes please
  • Marko: armature -> amateur
  • Crawford: Dibs,