Taste The Code

I make weekly videos of electronics, code and general making

Full Electrical Isolation for Your ESP32 Power Switch Using an Optocoupler

Using an optocoupler instead of a transistor in a custom PCB power switch gives full electrical isolation and removes noise from MPPT solar charge controllers.

Mar 13, 2026 — 5 mins read

Sensor Power Switch Using an ESP32 and P-Channel MOSFET

I walk you through the design and prototyping of a P-channel MOSFET switch controlled by an ESP32 to efficiently power external sensors only when needed.

Dec 14, 2025 — 5 mins read

Turning a Cereal Box into a 3D Printer Filament Dryer

I built a custom, automated filament dryer from a cereal box to effectively remove moisture from 3D printing filament using a controlled heating system.

Sep 19, 2025 — 16 mins read

Home Assistant-Controlled LED Light with a 3D Printed Base

Learn how to build a stable, Home Assistant-controlled LED light with a 3D printed base filled with plaster for weight, including wiring and smart switch setup.

Jun 26, 2025 — 5 mins read

DIY Custom PCB in Altium for Edge-Lit Acrylic Signs

Learn how to design a custom PCB for edge-lit acrylic signs—from schematic creation in Altium to 3D-printed enclosure fit checks—in this beginner-friendly DIY electronics guide.

May 30, 2025 — 5 mins read

How I Built a DIY Digital Microscope For My Electronics Workbench

Learn how I build a DIY digital microscope for my electronics workbench! I cover 3D printing a camera mount, upgrading to a rechargeable battery, and transforming a handheld microscope into a powerful tool for PCB inspection and repair.

Feb 26, 2025 — 4 mins read

Electronic Tape Measure Project Using UWB Modules

I used two RYUW122 UWB modules to create an electronic "tape" measure that measures distances of up to 100 meters.

Jun 10, 2024 — 4 mins read

Arduino Emergency Caller Prototype with NodeMCU and Crowtail-4G SIM A7670E

I created a prototype device for elderly people to make single-button calls or send emergency SMS to their caregivers.

May 03, 2024 — 5 mins read

Trail mapping with GPS, ESP32 and microSD card

I made a device that can be used to map out trails in the wild and save the output as KML files on an SD card.

Jan 29, 2024 — 7 mins read

Energy Harvesting Experiments and Examples

I created a device that can harvest thermal energy and convert it to electricity to spin a motor.

Oct 12, 2023 — 2 mins read

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