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- Accuracy:
- Sensitivity:
- Signal Collecting Period: 2S
- Responsive to a wide scope of target gases
- Cost efficient
- Durable
- Require relatively clean air as an initial condition.
- Long time exposure to highly polluted air can significantly weaken its sensitivity.
Features- Switch
- Motion sensor
- Thief-guarding system
- Industrial automation
- Input voltage: DC 4.5~20V
- Static current: 50uA
- Output signal: 0,3V (Output high when motion detected)
- Sentry angle: 110 degree
- Sentry distance: max 7 m
- Soil moisture sensor based on soil resistivity measurement
- Easy to use
- 2.0cmX6.0cm grove module
- simple way to detect motion
- emitter side that sends out a beam of human-invisible IR light, then a receiver across the way which is sensitive to that same light
- When something passes between the two, and its not transparent to IR, then the 'beam is broken' and the receiver will let you know
- Pressure Sensor (100lb but can get different ranges)
- tracing footsteps
- reconfiguring furniture when someone sits down
- measuring the weight of something
- Sensing area: (0.375 in.) diameter
- Requires: Arduino UNO or other Arduino compatible board; breadboard; M/M jumper wires; 1 MegaOhm Resistor; Arduino IDE for programming
- Basic code is provided on Sparkfun to get started
- Input Voltage: 5V
- Working Current: 120mA
- Detectable Concentration: 20-1000ppm
- Grove Compatible connector
- Highly sensitive to alcohol.
- Fast response and resumes quickly after alcohol exposure.
- Long life.
- Compact form factor.
- Magnetic Card (facts from Sparkfun and wikipedia)
- 30mil standard card with a low coercivity magnetic stripe.
- The stripe can contain up to 3 tracks of information.
- This card can be erased and written multiple times with a compatible writer.
- only .95 cents
- LoCo cards are much easier to erase and have a shorter lifespan
- Track 1 is written with code known as DEC SIXBIT
- his format was developed by the banking industry (ABA). This track is written with a 5-bit scheme (4 data bits + 1 parity), which allows for sixteen possible characters
This sensor is designed for comprehensive monitor over indoor air condition. It's responsive to a wide scope of harmful gases, as carbon monixide, alcohol, acetone, thinner, formaldehyde and so on. Due to the measuring mechanism, this sensor can not output specific data to describe target gases' concentrations quantitatively. But it's still competent enough to be used in applications that require only qualitative results, like auto refresher sprayers and auto air cycling systems. This sensor does better in providing qualitative results over a wide scope of target gases. In this demo, we define 4 statuses for reference in the .cpp file. They are:
4. PIR Motion Sensor Module ($7.90 USD)
This Moisture Sensor can be used to detect the moisture of soil or judge if there is water around the sensor, let the plants in your garden reach out for human help. They can be very easy to use, just insert it into the soil and then read it. With the help of this sensor, it will be realizable to make the plant remind you : hey, i am thirsty now, please give me some water.
6. IR Breakbeam Sensors (Adafruit)
Wiring requirements
- 3.3V or 5V power
- Arduino
Pressure Sensors
Possible uses:
Key Facts:
Water flow sensor consists of a plastic valve body, a water rotor, and a hall-effect sensor. When water flows through the rotor, rotor rolls. Its speed changes with different rate of flow. The hall-effect sensor outputs the corresponding pulse Signal.
You will need Seeeduino / Arduino ,Water Flow Sensor,10K resistor,a breadboard and some jumper wires.
Wiring up the Water Flow Sensor is pretty simple. There are 3 wires: Black, Red, and Yellow. Black to the Seeeduino's ground pin Red to Seeeduino's 5v pin The yellow wire will need to be connected to a 10k pull up resistor.and then to pin 2 on the Seeeduino.
Chemical Sensors
Grove - Alcohol Sensor is a complete alcohol sensor module for Arduino or Seeeduino. It is built with MQ303Asemiconductor alcohol sensor. It has good sensitivity and fast response to alcohol. It is suitable for making Breathalyzer. This Grove implements all the necessary circuitry for MQ303A like power conditioning and heater power supply. This sensor outputs a voltage inversely proportional to the alcohol concentration in air.
Misc.