- Operating Voltage: 3.3V
- Measurement Range: 300 to 1100hPa
- Accuracy: 1.0 hPa
- Interface: I2C or SPI
The BMP280 is a high precision, low power digital barometer. This sensor can be used to measure temperature and atmospheric pressure. You can also measure approximate altitude based on the difference in atmospheric pressure. This sensor can be interfaced with I2C or SPI.
This semiconductor gas sensor detects the presence of LPG, isobutane, and propane at concentrations from 300 to 10,000 ppm. The sensor s simple analog voltage interface requires only one analog input pin from your microcontroller.
Thermocouples are best used for measuring temperatures that can go above 100 Degree C. This is a bare wires bead-probe which can measure air or surface temperatures. Most inexpensive thermocouples have a vinyl covering which can melt at around 200 Degree C, this one uses a fiberglass braid so it can be used in high temperature measurements such as heaters and ovens. There’s a small piece of heat shrink on the end to keep the fiberglass from fraying. If you’re using at >250 Degree C temperatures, simply remove it with a small blade.
The GP2Y0A21 Sharp distance sensor is a great way to add obstacle avoidance or motion sensing to your robot or any other project. With a detection range of 4 to 32 (10 cm to 80 cm) and an analog voltage indicating the distance, this sensor is very easy to use.
The TMP36G is an analog temperature sensor which has a measurement range of -40 to +125 Degree C.