Disposable Device Reclamation
Disposable Vapes, what a nightmare. These nicotine dispensers contain rechargeable lithium batteries that just get thrown away. Blake from Green Dragon Productions will be showing us how to repurpose the batteries and cases to make useful (or at least pretty) things. Along the way,…
Microcontrollers for All!
CH32V003 £0.10p Microcontroller The development of open-source standards for linking software to the physical construction of microcontrollers (Instruction Set Architectures or ISAs) has led to a new generation of ultra-cheap microcontrollers, which are increasingly popular among hobbyists and makers. One example of an open-source…
Low Voltage Electrical Wiring: A Beginner’s Guide
Join our beginner-friendly session and learn the essentials of low voltage wiring and safety. Perfect for newcomers, this workshop will equip you with the skills for safe DIY battery and wiring projects. What you’ll learn: Basic principles of low voltage wiring, fusing and safety…
Small scale solar installation
PAGE UNDER CONSTRUCTION Risk Assessment Risk: Electrical Shock Control: Panel and battery voltages to be kept under 50V Risk: Shorting battery while wiring Control: Battery added last, dc breaker installed
Analogue Noise Machines
The Green Dragon house band is Analogue Noise Machines, join me at my Maker Space in North Yorkshire or find me at festivals in the summertime. Build and play a home-made electronic instrument. Learn about the components, solder them together and play. Everything can…
Reclaiming Lithium Batteries
Reclaim Lithium Cells See also: Disposable Vape Battery Reclamation. Activity: Build a USB Powerbank from reclaimed 18650 Lithium Cells. Time: 2 hours. Cost: £40. Places: 6. Takeaway: 4 cell 5V USB Powerbank Learn to test and match reclaimed 18650 Lithium Cells and to build…
PWM LED Driver by Green Dragon
Update: I have Moved on to Microcontroller based PWM as they are 10p vs the smd 555 5p but require many fewer supporting components The Green Dragon variable duty cycle PWM LED driver PCB based on the 555 timer IC invented in 1971 and…
Powerbank
SP4502 Powerbank IC datasheet HERE DW01 Lithium Cell protection IC DataSheet HERE
Blinky! Reverse Avalanche Oscillators
Blinky! is 20 BC337 transistors oscillating in Reverse Avalanche mode. High values of components make slowly flashing random lights. How slow can you go? Low values of components can oscillate in the audio frequency range (20Hz-20kHz) and above. Blinky! is a simple schematic repeated…