We often hide the electronics in a box. And cases can be done well and nicely. But when our main … More
Nova PM sensor SDS011 can measure fine dust and smoke = particulate matter (MP) concentrations in two categories: Ultrafine dust … More
Acrylic painting on A3 paper.
Only on July 1st, the #HongKong police conducted more than 370 arrests. It’s time to fight back. Join #FridaysForFreedom, the counter-action … More