Clik here to view.
Multimeter Accuracy and AD587 Performance
Having built a small, portable 10.000V reference using the Analog Devices AD587 reference chip, now is a good time to evaluate its performance with a bunch of multimeters. However, I have a feeling...
View ArticleClik here to view.
Printing Heat Shrink Cable Markers with a Dymo Labelmaker
Recently I saw you can buy heatshrink tubing cartridges for Dymo label makers. This would be really convenient to make professional looking markers to identify individual wires and cables in some of my...
View ArticleClik here to view.
HP5082-7340 Hexadecimal display
Happy New Year everyone. A quick post to get the new year started and I recently scored a few HP5082-7340 hexadecimal LED display chips. These are cool looking integrated hexadecimal LED displays...
View ArticleClik here to view.
4-20mA Panel Meter Teardown
I haven’t done a teardown in a while so I thought I’d share the insides of panel meter I recently found at a Sunday morning junk market for $5. Below is a panel meter that has been used in some sort of...
View ArticleClik here to view.
Linear CCD Update
Just a quick update. I was going through some boxes that I haven’t unpacked since moving and I found the linear CCD I was experimenting with. After reviewing some schematics I’d saved and reviewing...
View ArticleClik here to view.
Bootleg Battery Charger Teardown
Its amazing how cheap some stuff is on eBay these days. For example, I picked up 3x lithium ion batteries and a charger to suit my Olympus TG-4 camera for $25 Aussie dollars, including free delivery. I...
View ArticleClik here to view.
Bootleg Battery Charger Heart Transplant
Following on from my previous post where I looked inside a cheapo battery charger from eBay – I have since gutted the charger. All that I kept was the case and the battery contacts. Gutting the unit...
View ArticleClik here to view.
VQB71 – Seven Segment Display
A while ago I picked up these VQB71 seven segment displays. These displays are a quad inline package (QIP) and they are not breadboard or protoboard friendly. Nonetheless they are a unique looking...
View ArticleClik here to view.
3D Resin Casting Electronics – Fails and Wins
For a current project, I needed to cast some electronics in epoxy resin. The process was eventually successful, but it did take 3 attempts to get it right. The aim was to encapsulate a Neopixel ring...
View ArticleWeather Station Display
Hey, so its been a while, there’s been a few projects since the last post, but I haven’t written them up 🙄 . In an effort to stop the projects accumulating in the half-finished pile, I made an effort...
View Article
