CPS120 is a high quality and low cost capacitive absolute pressure sensor with fully compensated output.

Ultra low-cost flow-through photometer for on-line measurements of bacterial density.

Just before creating my next tutorial, which will be using a PIR sensor, I thought I might create a separate tutorial for PIR Sensor.

Connect Infrared Obstacle Avoidance Sensor to Arduino Nano and program it to detect obstacles - Quick and Easy!

Connect multiple OneWire Maxim DS1820/DS18S20/DS18B20 thermometers to Arduino, and program it to measure the temperatures - Quick and Easy!

Connect Rotary Encoder to Arduino, and program it - quick and easy!

SHT25 I2C Humidity and Temperature Sensor ±1.8%RH ±0.2°C I2C Mini Module.

The HMC5883is a digital compass designed for low-field magnetic sensing. This device has a wide magnetic field range of +/-8 Oe.

MCP9808 is a highly accurate digital temperature sensor ±0.5°C I2C mini module.

BMA250 is a small, thin, ultralow power, 3-axis accelerometer with high resolution (13-bit) measurement at up to ±16 g.

BMG160 is basically a 16-bit, digital, tri-axial, gyroscope sensor which can measure angular rates.

STS21 Digital Temperature Sensor offers superior performance and a space saving footprint.

HYT939 is a digital humidity sensor which works on I2C communication protocol.