An interesting look into the optical system in a mouse.
Category Archives: Design
Convincing wife the 3D printer was worth it
This guy made a handy hook for his scooter in order to convince wifey that 3D printer wasn’t a waste of money. :)
Learning the Art of Electronics: 1L.5 The Diode | Learning Electronics In The Lab With Jay Jay
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Silly Job Title: Terminal Tactician. I am the Terminal Tactician!
In this video we continue to work our way through Learning the Art of Electronics. In this video we continue with 1L Lab: DC Circuits and test a 1N914 diode.
The circuit we build is this:
And the charts we make are these:
This demonstrates that as we increase the voltage into our diode the current increases exponentially.
We reverse the polarity of the diode to see what happens and we observe that only a very small leakage current of 0.4 µA flows.
We use the Riden RD6006 Bench Power Supply to supply 5V for our test circuit.
We use the EEVblog BM2257 Digital Multimeter to measure voltage.
We use the Fluke 17B+ Digital Multimeter to measure current.
We use the Carpenter Mechanical Pencil to make notes.
We use the Kaisi S-160 45x30cm Repair Mat as our workspace.
Thanks very much for watching! And please remember to hit like and subscribe! :)
p.s. today I added Riden, EEVblog, Kaisi, and Multimeter, to my spell check.
Following is a product I use picked at random from my collection which may appear in my videos. Clicking through on this to find and click on the green affiliate links before purchasing from eBay or AliExpress is a great way to support the channel at no cost to you. Thanks!
Yum Cha 4K HDMI USB 3.0 HDMI To USB Adapter![]() |
Let’s go shopping!
Low Tech Sensors and Actuators
Today I discovered Low Tech Sensors and Actuators while reading Getting Started with Arduino. It’s a report about how to salvage electronics from cheap toys to make various types of systems which can interact with their environment.
How Boris Tane Uses Claude Code (hint: it’s Waterfall!)
In my feed today: How Boris Tane Uses Claude Code. He separates research, planning, and implementation phases, as he says: “Read deeply, write a plan, annotate the plan until it’s right, then let Claude execute the whole thing without stopping, checking types along the way.”
I might be the first to point out: this is Waterfall! Micro-waterfall?
USB Looper for Serial Debugging and File Transfer
Here’s a fun build from element14 presents: Build Your Own USB Looper for Serial Debugging and File Transfer — Episode 702. It lets you connect two USB hosts to each other. I wanted to check out the software and schematics but I couldn’t find the files to download from anywhere…
DIY BluesBreaker
In this video Ruckus Audio makes a BluesBreaker for his guitar.
Solving Impossible Problems with Dan Gelbart
This interview with Dan Gelbart looks interesting, but I don’t have two hours spare to watch it! You can learn more about Dan Gelbart here: The optimistic inventor: Dan Gelbart, Weizmann-identified whiz kid, recalls a storied career. His popular YouTube channel is here: https://www.youtube.com/dgelbart.
Undeformable pen clip
I love what these guys are doing with clips and such.
One ROM 40 – 16-Bit ROM Replacement for Amiga and Beyond
The latest One ROM installment from Piers Rocks. He made his own PIO/DMA emulator and One ROM logic analyzer, as one does.



