Old House Insulation and Ventilation

Old House Insulation and Ventilation

www.earthouses.co.uk/tag/lime-render/

www.greenspec.co.uk/building-design/woodfibre-retrofit/

www.grandishdesigns.co.uk/external-insulation/

www.maverickmansions.com/



/www.mikewye.co.uk/gallery/insulating-render/

www.mikewye.co.uk/gallery/insulating-render/ – Great Read, East Devon Firm

www.lime-green.co.uk/products/lime-render/finish-WP
www.littlegreene.com/paint/finish/limewash

billus.co.uk/wp-content/uploads/2019/07/techpaper14-keeping-warm.pdf

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MicroPython & ULP/RTC Memory

MicroPython & ULP/RTC Memory

Big power advantages exist for using the ULP ( Ultra Low Power ) processor for regular tasks like recording a state change from a GPIO or ADC input, storing the information within the RTC memory, then waking the main CPU up when the information needs to be transmitted via Lora.… Read More

e-Bike Lithium Ion Load Tester

e-Bike Lithium Ion Load Tester

Using power resistors is not feasable, but AC halogen bulbs are easily sources up to 500W , so multiple bulbs can be used to vary the current

120Vrms
500bulb watts
28.8bulb resistance
52battery voltage
93.88889watts
1.805556amps

So on a 52V battery pack a 500w halogen bulb would draw about 1.8Amps

Voltage can be monitored with a simple voltage divider to lower the 52V to something suitable ( < 3v probably )

Current can be monitored with a shunt

30A FL-2 DC 75mV Current Shunt Resistor for Ammeter Amperemeter Panel Meter

www.ebay.co.uk/i/362323528806

www.ebay.co.uk/itm/Lamp-Holder-R7s-117mm-118mm-Linear-Halogen-160-500W-Halogen-Lampholder-/321935501041

www.amazon.co.uk/J118mm-Tungsten-Halogen-floodlight-security/dp/B004HDVS20

This instructables guide would be a good starting point
www.instructables.com/id/Li-ion-Capacity-Tester-/

Could be better to stick with one technology AKA PyCom
docs.pycom.io/datasheets/oem/l04/
github.com/maddog75/LoPyI2CLCD
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