The geeekus Water Level Droplet Rainfall Sensor Detection Module is a high-quality sensor for Arduino, Raspberry Pi, micro:bit and most other 5V microcontrollers. This Water Level Sensor has many uses like measuring the water levels, monitoring a sump pit, detecting rainfall, and detecting leaks, etc.. The sensor has ten exposed traces, five are power traces and five are sense traces. The power and sense traces are not connected but become bridged when immersed in water.
The geeekus Analog Steam Sensor Module allows you to have a DC voltage output depending on the level of moisture detected across its sensor pads (dry state has a low value;when humidity on the face of this sensor rises, output voltage will increase). This basic sensor module can be used to detect the presence of steam, water, rainwater, moisture, vapour, etc. This steam sensor module can be connected to the GPIO of a 5V/3.3V microcontroller directly.
The geeekus 1-channel solid state relay module board can be controlled by a wide range of microcontrollers such as Arduino, Raspberry Pi, AVR, PIC, ARM, PLC and etc.
The geeekus Sound Sensor module is designed for measuring sound signals like voice, claps, snaps and knocks in your surroundings. It works through sound vibrations, which cause a plate inside the sensor to bend back and forth, producing a change in voltage that can be measured. Larger vibrations means higher values.
The geeekus PIR (passive infrared motion) Pyroelectric micro sensor is designed to work with Arduino, Raspberry Pi, micro:bit and almost any other microcontroller. This geeekus sensor is based on the AM312, which also works on 3.3V and not just on 5V (like HC-SR501) which makes it perfect for ESP8266 devices without a 5V line. It is also less prone to false triggers due to Wi-Fi interference.
The geeekus MQ-2 Gas Vapor Sensor module is useful for gas leakage detection for home and industry. It is suitable for detecting H2, LPG, CH4, CO, Alcohol, Smoke or Propane. Due to its high sensitivity and fast response time, measurement can be taken as soon as possible. The sensitivity of the sensor can be adjusted by potentiometer.
