Julian builds: a monster bright 30w led garden solar light update
Updates to my Monster 30W LED Garden Solar Light project. A new PWM solar charge controller with timer function has…
Julian’s kit build fail : banggood 15 $23 oscilloscope kit
Spent a few hours building this Banggood (jyetech.com) oscilloscope kit, but the display failed after just a couple of minutes…
Julian’s postbag: #40 – banggood scope/dds kits, otas
In today's postbag: ETI Vocoder constructional project reproduced with permission from Wimborne Publishing Ltd. http://www.epemag.com http://bit.ly/1PlWI4l DDS-Function-Signal-Generator-Module-DIY-K
Julian’s project: electric bike upgrade to lifepo4 – #3
Finally managed to get the eight lithium iron phosphate cells into my electric bike.
Julian plays with: microchip pic10f322 6-pin microcontroller
A little play with the peripherals on the Microchip PIC10F322 microcontroller
Julian’s project: eti vocoder – internal excitation oscillators
Playing with a couple of triangle wave oscillators. ETI Vocoder constructional project reproduced with permission from Wimborne Publishing Ltd. http://www.epemag.com…
Julian’s postbag: #39 – ad9850 dds, ad9833, pwm solar controller
Today's items from China Check out Upgrade Version PWM 10A Solar Charge Controller Regulator 12V 24V Switch TOP http://www.ebay.com/itm/-/400829866183?roken=cUgayN&soutkn=wzD4mf via…
Julian’s project: penny organ – how music works
After completing the penny organ, I have to select frequencies that sound musical. But what are those frequencies? Arduino code:…
Teardown: aukey apollo sk-a1 bluetooth speaker
A look inside the Aukey Apollo SK-A1 Bluetooth speaker. This small unit kicks out a lot of bass and has…
Overview: summer 2015 solar and outdoor projects
Time to review all my solar powered and outdoor projects and decide what work to do on them this summer.…