EEssential

 We have built MicroPython for STM32F429DISC previously.  We'll use it as a guide to port MicroPython to MPFS Discovery Kit and Beagle-V...

Sinusoidal signal can be generated with the wave DAC and low pass filter.  But here we will attempt to generate sine wave the analog way.  W...

 A twenty-five year old quartz clock stopped working.  I'm curious to see what has failed.   Opening up the clock, we see a simple one-l...

 I think this concept of analog ground and digital ground trips every young engineer.  The school did not teach me about this when going thr...

I wrote about some LED flashlight that I built  or purchased many years ago.   Recently the incandescent bulb on my Garrity flashlight burn...

 Antonki Thermometer/Hygrometer is sold at $8 for two.  It claims a temperature range of -50 to 70°C (-58 to 158°F) with accuracy +/-1°C and...

 A very simple toaster oven costs about $20.  While the most consumer electrical appliances have microcontrollers inside and some are intern...