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Scavenging rechargeable lithium cells from the roadside

Scavenging rechargeable lithium cells from the roadside

263K views • 4 years ago

Big Clive shows how to pick up discarded disposable vape devices from the roadside and extract the rechargeable lithium cells inside. He explains why these devices contain the same circuitry as rechargeable ones and how to reuse the cells.

How to power ANYTHING using USB-C Power Delivery and the ZY12PDN PD Trigger Board

How to power ANYTHING using USB-C Power Delivery and the ZY12PDN PD Trigger Board

322K views • 6 years ago

Kenneth Finnegan

Kenneth Finnegan shows how USB-C Power Delivery trigger boards like the ZY12PDN negotiate 5V to 20V so you can power projects from a USB-C charger, including the color coding for each voltage.

KiCad 6 STM32 PCB Design Full Tutorial - Phil's Lab #65

KiCad 6 STM32 PCB Design Full Tutorial - Phil's Lab #65

987K views • 4 years ago

A 100-minute tutorial from Phil's Lab on designing an STM32-based 'black pill' PCB in KiCad 6. It covers schematic capture, two-layer layout and routing, USB, and sending the board for manufacture and assembly.

Air Conditioning isn't free... but we're close.

Air Conditioning isn't free... but we're close.

1.4M views • 3 years ago

Tech Ingredients

Tech Ingredients shows how to build a liquid panel with a specialty paint that, placed outside, cools below ambient air temperature. It demonstrates radiative sky cooling.