Water Sensor water level sensor is an easy-to-use. cost-effective high level/drop recognition sensor. which is obtained by having a series of parallel wires exposed traces measured droplets/water volume in order to determine the water level.
Easy to complete water to analog signal conversion and output analog values can be directly read Arduino development board to achieve the level alarm effect.
Rainwater can be used to detect water level detection.
4 M2 screws positioning holes for easy installation.
Operating voltage: DC3.3-5.5V.
Operating current: less than 20mA.
Clock Shield is a perfect start for beginners of Arduino world.
Contains most common resources for a basic electronic project. like buttons. sensors. buzzer and display. After you're done with the soldering task. it turns out to be a geek style alarm clock which can auto adjust the brightness of display and keep in synch with real world time.
7-Segment Display 4-Digit (TM1636 Driver IC)
DS1307 Real time clock inside
5V DC buzzer: Alarm clock in geek style
Photoresistor: Induction of ambient light intensity
Thermistor: detect ambient temperature
4 LEDs in blue. green. red and red
Battery Holder: provides power to RTC IC when external power is off
3 temporary buttons
All-in-one platform for beginners