Julian’s kit build: banggood 15 $23 oscilloscope finale
The replacement LCD has arrived. I take extra anti-static precautions and fit the LCD. Finally, the oscilloscope works. Sort of...…
Julian looks at green stuff: #2 – hydrogen car
Why are hydrogen fuel cell cars so expensive. The technology is really very simple.
Julian looks at green stuff: #1 – british gas appliance off
I thought there might be one interesting component inside this 'green' energy saving product.
Julian’s project: electric bike upgrade to lifepo4 – #5 charging
Balance charging the 8-cell LiFePO4 battery pack using the Turnigy Accucell 8150 balance charger.
Julian’s project: electric bike upgrade to lifepo4 – #4 balance leads
Adding the balance leads for use by the low voltage alarm and the Turnigy balance charger
Julian’s postbag: #44 – inventables x-carve unboxing
Unboxing the X-Carve CNC milling, carving, routing machine sent to me by Inventables
Julian reveals: secrets of the pwm5 – #2 misjudgement
The biggest technical support headache wasn't due to poor circuit design or buggy firmware. It was due to a misunderstood…
Julian looks inside: x-sense carbon monoxide/smoke alarm
A quick look inside a smoke and carbon monoxide detector which has two separate sensors. The smoke detector is an…
Julian upgrades: st uc firmware for yzxstudio usb monitors
Upgrading the firmware on the Red and Yellow YZXstudio USB3.0 Power Monitors. This done using a ST-LINK V2 microcontroller programmer…
Julian reveals: secrets of the pwm5 – #1 inspiration
New series revealing secrets of the PWM5 solar charge controller. Soon to become an open source project, I can now…