Beginners Low Voltage Electrics

This session will be an overview for beginners, aimed at people with no experience of low voltage electrical wiring and safety. With a few basic principles, it is possible to DIY low voltage batteries and wiring safely. Learn to use testers and multimeters. We…

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 Machine

The Green Dragon house band is Analogue Noise Machine, 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…

DIY Lithium Batteries

I can accommodate¬†complete beginners as well as those with experience of DIY Lithium batteries and LEDs. You will build your own USB Powerbank from reclaimed 18650 cells that you can recharge with a USB phone charger. Charge mobile phones and power LED lighting in…

PWM LED Driver by Green Dragon

The Green Dragon variable duty cycle PWM LED driver PCB based on the 555 timer IC invented in 1971 and still in production today. Schematic PWM LED Driver Component Datasheets NE555 Timer IC Datasheet. LMV358 Opamp Datasheet. KND8103A Mosfet Datasheet LM78L05 5V Voltage Regulator…

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…