The basic principle of metal oxide sensors is the resistance of detection layer changes at the presence of the targeted gasses. Oxidizing gases such as ozone or nitrogen di-oxide the resistance will increase and gases such as carbon monoxide the
Wiring the SFM3000 Mass Flow Meter with 16X2 LCD Screen
This is the SFM3000 a Mass Flow Meter develop by SENSIRION. This can measure a bidirectional flow of air and other non-aggressive gases at rate up to 200slm superb accuracy and extremely high speed output at 14 bit/ 2kHz rate.
Wiring the MAX30150 Particle / Smoke Detection Sensor
This the MAX30105 an integrated particle sensor. This device includes internal LEDs, Photodetectors, Optical Elements, with advance low noise electronics and light blocking. This provides a complete system on chip solution to ease the design process of a smoke detection
Wiring the TELAIRE T6713 / T67XX a Carbon Dioxide CO2 sensor
This the Telaire T6713 / T67XX a Carbon Dioxide CO2 sensor for indoor air quality, energy saving application, control of ventilation, environmental purpose, farming, and clinical instrumentation. The T67XX is already factory calibrated sensor than can measure the concentration level
Water/Liquid Level Data Logging on microSD and RTC
Another project that demonstrate how to build a low cost lake/pond water level logger sensor that can be deployed without an RF communication. however this project works as independent/standalone can be deployed on a remote area intended for science and
Wiring LM393 as Steam, Water Vapor, Moisture Sensor
This is a steam sensor which is can sense a rain drops, steam or water vapor suitable of IOT project. The illustration below use LM3XX as differential comparators that drives the difference between the two inputs. The LM3XX device is
Wiring SenseAir LP8/S8 IR CO2 Sensor on TI CC3200 IOT-MCU
SenseAir Miniature (Carbon Dioxide) CO2 Sensor are non-dispersive small package infrared (NDIR) sensor, a new optical design that enable a precise and accurately measures carbon dioxide level up to 5% that runs on 30mA design for long-term battery or solar
Wiring SenseAir LP8/S8 CO2 Carbon Dioxide NDIR Sensor
These are the SenseAir Miniature (Carbon Dioxide) CO2 Sensor featuring a non-dispersive small package infrared (NDIR) sensor, a new optical design that enable a precise and accurately measures carbon dioxide level up to 5% that runs on 30mA design for
Wiring LuminOx O2 / Oxygen RS232 Optical Sensor
This is the LuminOx O2 (Oxygen) RS232 TTL driven sensor a high accuracy fluorescence based optical sensor series, design and develop by SST sensing. This device is capable of detecting and measuring ambient oxygen partial pressure PP02 level using the
MS5803-01BA i2C Pressure / Temperature Variometer Sensor
This is MEMS MS5803-01BA this device is a new generation of high resolution altimeter sensor which is integrated with serial peripheral interface (SPI) and i2C (two wire interface) bus interface. The MS5803-01BA-HE is a high endurance pad compare to MS580301BA
Wiring 2N7000 AN10441 as Logic Level Converter for i2C Protocol Devices
Other micro-controller uses 5v as standard input voltage, many latest device modules, popular sensors, GPS, RF modules, Flash Memories, SPI storage, Display, use 3 to 3.3v most of this devices requires logic level conversion to protect them from high voltage
Wiring the Transducer Pressure Sensor with TWI / i2C LCD Display Panel as Pressure Valve with Microcontroller
This is a transducer pressure sensor used for Fuel / Gas / Oil / Liquid / Water and Air. A pressure sensor is a device that express the force from expanding, usually acts a transducer that generates a signal as