A Mini Water Pump (Black) usually refers to a small, compact water pump often used in DIY projects, aquariums, small fountains, or electronic cooling systems. The color black usually just refers to the housing, which is often ABS plastic or another waterproof, durable material.

1200mah battery

12v 2a adapter

38PINS

The ESP32 is a powerful, low-cost, and ultra-versatile Wi-Fi + Bluetooth microcontroller developed by Espressif Systems. It's a favorite in the maker community and professional IoT projects because it packs a ton of features into a tiny chip.