- Operating Voltage: 3.3 to 5V
- Adjustable Threshold
- On-board LED Indication
This sound sensor uses the onboard electret microphone as well as the LM393 amplifier to detect any sound that is beyond the threshold setting. The level of the threshold can be set by the on-board potentiometer. This module will output a HIGH signal when the sound is lower than the threshold, as well as LOW when the sound is higher than the threshold.
The MCP9701A is an analog temperature sensor which has a measurement range of 0 to +70 Degree C.
This semiconductor gas sensor detects the presence of Carbon Monoxide at concentrations from 10 to 10,000 ppm. The sensor s simple analog voltage interface requires only one analog input pin from your microcontroller.
Unlike all the other temperature sensors we have, this breakout has a really cool IR sensor from TI that can measure the temperature of an object without touching it! Simply point the sensor towards what you want to measure and it will detect the temperature by absorbing IR waves emitted. The embedded thermopile sensor generates a very very small voltage depending on how much IR there is, and using some math, that micro voltage can be used to calculate the temperature. It also takes the measurement over an area so it can be handy for determining the average temperature of something.
This breakout board is the simplest way to create a project with a single “momentary” capacitive touch sensor. No microcontroller is required here – just power with 1.8 to 5.5VDC and touch the pad to activate the sensor. When a capacitive load is detected (e.g. a person touches the sensor-pad area) the red LED lights up and the output pin goes high. You can also solder a wire to the middle pad and create your own capacitive pad if the built-in one isn’t suited to your project.