flip-flop/BCF project

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 one of Andrew’s indirect filament […]

INA219 current sensor DIY Breakout board

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 this simple circuit. Project info […]

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

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. For a large-scale project like a home exterior painting Edmonton, it is advised that you hire a professional painting […]

Lab LED constant current controller board

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 from dropping parts down under […]

Beaglebone Black music box project

Brian’s Beaglebone Black music box project:  I would like to thank Miero for his hard work on the linux I2S driver for Beaglebone Black’s SOC without the driver this project would not exist. You can see the design in its enclosure here below and in the following video The design is essentially complete and tested as […]

DIY 110v temperature controlled soldering station

Mike Doughty over at PCBSmoke shared his DIY 110v temperature controlled soldering station in the project log forum: This post shows how to build a do it yourself 110 volt soldering station. It is a step by step guide that shows how to convert a regular plug-in soldering iron into a temperature controlled unit. It is an […]

Homemade x-ray inspector reveals PCB secrets

John McMaster has written an article detailing his homemade x-ray scanner: In some previous posts I talked about getting an x-ray head working, reverse engineering an x-ray sensor, and working with LinuxCNC.  In this post I put them all together so that I can take a bunch of x-ray snapshots across an entire PCB.  This […]

DIY compost sensor

Kinasmith wrote this instructable detailing how to build a compost temperature monitoring system, a web connected wireless sensor network: Why Measure the Temperature of Compost? “Composting is the biological decomposition of organic matter under aerobic conditions.” Micro-organisms consume organic material and oxygen and create heat as a waste product. By measuring this heat you can predict […]

SoHa SMART first logo PCB design & manufacture

‏ @josephpcrabtree tweeted, “New learn-to-solder badges for @SoHaSMARTMaker. PCBs from @dangerousproto DirtyPCBs” This is a big day for any maker space when you learn to design and manufacture your own PCB. We are very proud of our circuit design and end result. We will use these in all of our Learn To Solder Classes going […]