• Building A Direct Digital Synthesis Dual-Channel Signal Generator

    Introduction This blog post discusses some practical implementations of super-low-cost ($30 upward) direct digital synthesis (DDS) based signal generator for home use. To save effort and time, they can all be built ar...
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    last modified by shabaz
  • Free Chemistry, Heating and LoRa stuff [UK]

    Hi, I've got some items unrequired, if you're in the UK and wish to have it, please let me know if you want "chemistry" or "LoRa" or "Heating" stuff and I'll post it for free. All of this stuff is new and unused, and...
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    last modified by shabaz
  • Making Mini-Circuits style Tiny Metal Boxes - RF Module Enclosures

    Introduction There are some really nice small enclosures that are incorporated into products sold by Mini-Circuits and others. They are very cool because their surfaces are perfectly perpendicular to each other, with ...
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    last modified by shabaz
  • Building an LCR Meter

    Introduction Recently there's been lots of interest in capacitor equivalent series resistance (ESR) and many other capacitor topics (e.g. see Deep Dive into ESR, Introduction  and Capacitor Leakage Experiments an...
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    last modified by shabaz
  • Kelvin (4-Wire) Milliohm Meter: Version 1.3 Enclosure

    This post documents an enclosure for the milliohm meter described here and is a tale of how the mechanical bits are often as difficult to get right as the electronics.  The meter parts have been stored away, and ...
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    last modified by fmilburn
  • Kelvin (4-Wire) Milliohm Meter:  Version 1.3 Working

    This post documents the first working Version 1.3 of an inexpensive but reasonably accurate meter for measuring resistance in the milliohm range. The development to date is documented in the links at the bottom of thi...
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    created by fmilburn
  • Experimenting with E-Paper Displays: Building a Clock!

    Introduction I’d been curious to experiment with E-paper displays for a long time, and recently I finally got around to some basic experimentation. This short blog post documents some work with a compact 2.9 inc...
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    last modified by shabaz
  • Creating Product Links in a Blog Post, using EAGLE

    Introduction For open source projects, I usually create a table containing the parts details or bill of materials (BoM), but it is tiresome to then re-enter all that information into the Farnell or Newark website, to ...
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    last modified by shabaz
  • Wall mount touchscreen for ESP32 and ESP8266

    Hi, I want to introduce a project of me. It's a enclosure set with in-build touchscreen for top wall mounting for ESP32 and ESP8266 modules. This kit enables you to mount your project permanent in your living room, c...
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    last modified by hwhardsoft
  • Building a Low Cost Solder Fume Extractor – Part 1

    Note: This is part 1 of a two-part project. For the second part, see here: Building a Low Cost Solder Fume Extractor - Part 2   Introduction I’m sure I’ve created some really stinky projects, but thi...
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    last modified by shabaz
  • Building a Low Cost Solder Fume Extractor - Part 2

    Note: This is part 2 of a two-part project. For first part, see here: Building a Low Cost Solder Fume Extractor – Part 1   Introduction This project concerns a solder fume extractor that does as the title...
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    last modified by shabaz
  • Kelvin (4-Wire) Milliohm Meter:  Version 1.3

    This post documents Version 1.3 of an inexpensive but reasonably accurate meter for measuring resistance in the milliohm range. The development to date is documented in the links at the bottom of this post.  Vers...
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    last modified by fmilburn
  • Another BeagleBone - BeagleBone AI!

    Hopefully we'll hear more soon, but there appears to be another BeagleBone board launched at Embedded World, with the same form-factor as the BeagleBone Black. It's called the BeagleBone AI. I'm guessing it's not a r...
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    last modified by shabaz
  • S7-Mini - Spartan7 open source board

    Looks like there is a new Xilinx Spartan7 board on the market!       The S7-Mini board has been officially launched at Embedded World 2019, by Trentz Electronic, a German company specialized in the...
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    last modified by gecoz
  • 'StartUSB for PIC' Getting Started Guide

    Introduction This blog post looks at a very small microcontroller board called the StartUSB for PIC, and shows how it can be used either as a standalone microcontroller board or used to control your own hardware (eith...
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    last modified by shabaz
  • Building Frank's Milliohm Meter

    Introduction This short blog post documents the specific component values and any mods done to the revision 1 PCB from fmilburn Working Prototype of a Kelvin (4-Wire) Milliohm Meter  Project14  Test Instrume...
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    last modified by shabaz
  • The Audio Cable Buddy - Boosting Audio via Impedance Conversion

    Introduction I've often heard the issue that the audio isn't loud enough when people plug in their iPods/phones and so on into music systems, even if they turn the volume up to maximum on their device or the amplifier...
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    last modified by shabaz
  • Making Fancy Cables Part 2: Soft Headphone and Composite Cables

    Part 1, Making Fancy Cables: Network Cables!  examined how coloured and patterned nylon braids could be used for cable assembles: ) Those cables are intended for demos/presentations and so on. Nylon braid is ve...
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  • Making Fancy Cables: Network Cables!

    (This is part 1. For part 2, see here! Making Fancy Cables Part 2: Soft Headphone and Composite Cables  )   Introduction This very short blog post describes the steps I took to make network patch cables that...
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    last modified by shabaz
  • Building a SMT Pick-and-Place Buddy

    Introduction For years I’ve used a normal pair of tweezers to pick up small parts. It works fine but in the quest for further improvements I looked to buy a vacuum pick-up (also known as vacuum tweezer) tool to ...
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    last modified by shabaz