220V Electric Solenoid Valve Magnetic DC N/C Water Air Inlet Flow Switch 1/2″ in Pakistan

Serial port Bluetooth, Drop-in replacement for wired serial connections, transparent usage. You can use it simply for a serial port replacement to establish connection between MCU and GPS, PC to your embedded project and etc.

HC-06 has be

soil humidity module to the environmental humidity is the most sensitive, generally used to detect soil moisture. module in soil moisture can not reach the setting threshold, DO mouth output high level, when soil moisture more than setting threshold, module D0 output low level; small plate digital output D0 can be directly connected with the single chip microcomputer, through the single chip microcomputer to detect the high and low level, thus to detect soil moisture;

5 Colors 5mm F5 Ultra Bright Round LED Diode Kit Red / Green / Blue / White / Yellow Working current: 20 (mA) Working voltage: Red: 1.9V-2.1V Yellow: 1.9V-2.1V Blue:3.0V-3.2V Green: 3.0V-3.2V White:3.0V-3.2V

ESP8266 serial WIFI module adapter plate Applies to ESP-07, ESP-08, ESP-12E