Electronics Experiments

Modern power banks supports fast charging protocols with higher voltage/current. Let's see how chosen protocol affect of total delivered energy to the device.

Laptop chargers USB-C PD 100W became widespread, so why not use it for charging small electrical vehicles batteries?

Measuring of the quiescent and standby battery current when inverter enabled and disabled by button.

Let's check which exact voltage could be produced by the small solar panel 6V. This information is important for further energy transformation for device powering and battery charging.

Take a look at the idea of reducing operating temperature of high-power IC using SMT blocks as small heatsink.

Let's measure Iq (quiescent current) of the most common addressable LED WS2812.

Let's find out the ESP32 internal pull-up/pull-down resistance by measuring of the real resistance of the using ampermeter.