I have a new post on Hackaday: 2025 Component Abuse Challenge: Using Inductors To Steal Power From Qi Wireless Charging Base Station.
2025 Component Abuse Challenge: Using Inductors To Steal Power From Qi Wireless Charging Base Station
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Category Archives: Design
Module Monday #5: KY-024 Digital Hall Effect Sensor Module | In The Lab With Jay Jay
This post is part of my video blog and you can find more information about this video.
You can support this channel on Patreon: patreon.com/JohnElliotV
Silly Job Title: Master Planner. I am the Master Planner!.
In this video we take a look at the KY-024 Linear Magnetic Hall Sensor Board Switch Speed Counting Hall Sensors Module For Arduino Diy KY024 Hall Sensor.
You can learn more about the Hall effect which is basically a magnetism detector.
The code for this Arduino sketch is here: 2025-11-03-KY-024-digital-hall-effect.ino.
Thanks very much for watching! And please remember to hit like and subscribe! :)
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 13pcs Blades |
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Resistor vs Capacitor vs Inductor
HTTP Verbs
You only need GET (and its little brother HEAD) and POST. Whether operations on a resource are idempotent or not is something that you might like to change. Send all operations through POST which will apply business logic and don’t use PUT or DELETE. Simple.
Record-Breaking Robots At Guinness World Records
I have a new post on Hackaday: Record-Breaking Robots At Guinness World Records.
Module Monday #4: KY-035 Analog Hall Effect Sensor Module | In The Lab With Jay Jay
This post is part of my video blog and you can find more information about this video.
You can support this channel on Patreon: patreon.com/JohnElliotV
Silly Job Title: Buzz Boss. I am the Buzz Boss!
In this video we take a look at the 1-10pcs KY-035 Analog Hall Magnetic Sensor Module 49E For Arduino.
You can learn more about the Hall effect which is basically a magnetism detector.
The code for this Arduino sketch is here: 2025-10-27-KY-035-analog-hall-effect.ino.
Thanks very much for watching! And please remember to hit like and subscribe! :)
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!
Damotk 5pcs Crevice Cleaning Brush notes |
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Use Same Push Button for Turning ON/OFF and other Functions
DRV8833 Motor Driver
Over on one of my recent Hackaday articles I was referred to this article: DRV8833 Motor Driver. It discusses using MOSFETs as an alternative to BJTs for driving motors, thereby being more efficient.
A Simple $25 Robot Based On The ESP32
I have a new post on Hackaday: A Simple $25 Robot Based On The ESP32.
Module Monday #3: KY-031 Knock Sensor Module | Learning Electronics In The Lab With Jay Jay
This post is part of my video blog and you can find more information about this video.
You can support this channel on Patreon: patreon.com/JohnElliotV
Silly Job Title: Connector Kingpin. I am the Connector Kingpin!
In this video we take a look at the Knock Sensor Module For Arduino 3Pin KY-031 Percussion Knocking Knock Sensor Module Diy Starter Kit KY031.
The demo code is here: 2025-10-20-KY-031-Knock-Sensor.ino.
Thanks very much for watching! And please remember to hit like and subscribe! :)
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!
14500pa Cordless Hand Held Vacuum |
Let’s go shopping!