This is an ESP32-CAM-MB Micro USB download module or programmer board. It is a compact accessory designed to facilitate the programming and firmware uploading of ESP32-CAM camera modules.

This is an LCD 1602 character display module, commonly used with microcontrollers like the Arduino for displaying text and symbols.

Display type: 16x2 character display (16 columns, 2 rows).

Controller: Features the HD44780 controller.

Power: Operates at 5V.

Pins: Has 16 pins for connection, including VSS (GND), VDD (+5V), and VO (contrast adjustment).

Backlight: This specific model has a green LED backlight.

A clock button and 2N2222A -1726 transistor which is a retailer, possible identify it as a through hole, DIP pack age version which is also known as switching and amplification in electronic projector