Tech related articles on woodgears.ca

Closed loop stepper motors -- very impressive (2024)

Magnetic encoder vs stepper motor accuracy (2024)

Linear position with a rotary magnetic encoder

High-tech automatic Infrared heater aimer (2019)

Stepper mictostepping and controlling from Raspberry Pi (2019)

This laptop has no brain (Raspberry Pi laptop) (2024)

Solar panning camera build and eclipse shenanigans (2024)

Computer controlled cap shooter aimer (2019)

Squirrel shooter fail (2019)

Ultrasonic distance sensor as oil level gauge (2021)

Anemometer interface for Raspberry Pi (2021)

Working out optimal fan placement to vent out the house (2021)

Homemade benchtop
power supply (built 1987)

The cheapest USB scope I could find (2019)

Rigol DS1202 Z-E oscilloscope review (2023)

Fnirsi-1014D vs Rigol DS1202Z-E (2024)

Hanmatek DOS1104: Good budget scope but frustrating at times

LRC-ST1: Cool measuring gadget but lousy tweezers (2024)

Gochifix 3 in 1 scope meter review (2024)

What's inside a Sonicare toothbrush (2019)

Braun hand mixer speed control fix (2019)

Infrared heater: How warm does it feel (2019)

Wifi antenna
booster dish (2014)

Buil a better mouse trap using video surveillance (2015)

Mouse gap squeezer teaser machine (2018)

Wooden computer case (2007)

Eyeballing game (2008)

Computer controlled
box joint jig (2003)

How DC motors and universal motors work (2014)

How induction motors work (2014)

Wet rotor synchronous dishwasher motor (2017)

Figuring out a mystery motor (2019)

Brushless DC motor analysis (2019)

Measure R-values with infrared thermometer (2019)

Dehumidifiers moisture and vapour barriers - experiments (2019)

Does dusting out a fridge reduce power? (2019)

How efficient is a refrigerator heat pump? (2019)

What I have been up to lately (2019)

Drill battery powered LED worklight (2019)

Using the second (I2C 0) port on Raspberry Pi (2021)

Raspberry pi computer camera holder (2015)

My imgcomp motion triggered timelapse software

Raspberry Pi power over ethernet and mount it outside (2018)

Headless Raspberry Pi blink assigned IP address (2020)

Inductive current measuring using Raspbery Pi (2021)

Clip leads made with fake wires

Pi pico therapy timer, C vs. MicroPython (2023)

Oct 17 Wirelessly Tx 49 mhz toy with I/O line flipping

Programming Pi Pico in C — Microwave oven monitor (2023)

Our electrical is all wobbly, measuring power is hard (2022)

How badly do you get zapped before you trip a GFI? (2024)

Inverters don't like power tools (2022)

Amateur iPad screen replacement (2022)

Two inverters in series to make 240 volts (2023)

Transformer core saturation and imbalance (2023)

Let the microwaves be free (2023)

Anemometer calib-ration for low wind speeds (2023)

Hack to ensure glue gun get unplugged (2024)

Some of my older technical hacks

To my Woodworking website.