Laser Diode Module - 5mW 650nm 5V Red ESP32 A float switch is a

A float switch is a device used to sense the level of liquid within a tank

it may also appear as a mouse and keyboard to a connected computer

It's a 8 Pin JST Female to Female Connector - 2

high-current Darlington drivers comprised of eight NPN Darlington pairs

Laser Diode Module - 5mW 650nm 5V Red ESP32 A float switch is aThis is a 5 mW laser diode module that emits a small intense focused beam of visible red light. The module can be used with an Arduino and photoresistor module to perform basic remote signaling. It is breadboard friendly and low cost having a wavelength of 650 nm and an operating voltage of 5 V. The laser head is composed of a light emitting tube, condenser lens, and adjustable copper sleeve and it is assembled when delivered, the focal length of the