The schematic symbol used for the diode is typically an arrow with a short line across the tip. The cathode is the N-type material and is represented by the tip of the arrow. The anode is the P-type ...

ESP32 is a tiny cheap 8$ module with a dual core 32-bit CPU and built in Wi-Fi and dual-mode Bluetooth with sufficient amount of 30 I/O pins for all basic electronics projects. All these features are ...

but it seems no data in Ultra Librarian.

Arduino is a popular open-source development board used by engineers, hobbyists, and makers to develop electronic projects and prototypes easily.