EEssential

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

 The once ubiquitous fluorescent light tubes are gradually being replaced by the LED light.  The once popular compact fluorescent bulbs are ...

 The computer peripheral bus is eventually settled on PCIe and one small form factor expansion card is M.2 which provides up to 4 PCI expres...

 Product specifications (on the case):      Capacity: 12000mAh      Lifecycle: above 1000 times      Output: 12V      USB Port: 5V 2.1A/1A  ...

$4.79 (+shipping and tax for $7.23 total) Shenzhen Rongbo Jiachuang Technology Co, before the tariff was imposed on the Chinese goods. The d...

We try out MicroPython on STM32F429 Discovery kit.  We pull the MicroPython v1.25.0 source code from github.   First `make -C mpy-cross` to ...

 A foldable LED lamp that is powered by USB costs as little as $3-4.  The overall design seems relatively pleasing; the foldable and adjusta...