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MQ-135 is sensitive air quality sensor that detects NH3, NOx, alcohol, benzene, smoke, CO2, etc. Heater voltage 5V, 31 ohm (40mA consumption) The board has digital and analog output.FEATURES
- Detects NH3, NOx, alcohol, benzene, smoke, CO2, etc.
- Operating voltage 5V
- Operating current 40mA
- Both digital and analog output
- Popular sensor - a lot of examples available for different platforms
- Port explanation : AO for analog output, DO for digital output, GND for ground, VCC for 5V voltage input
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L293D Motor Driver Board E-40 L293D Motor Driver shield Input Voltage Range: 4.5 To 24VDC Output current Per Channel: 600mA Peak Output current: 1.2A -
The MQ series of gas sensors use a small heater inside with an electro-chemical sensor. They are sensitive for a range of gasses and are used indoors at room temperature. The output is an analog signal and can be read with an analog input of the Arduino. The MQ-2 Gas Sensor module is useful for gas leakage detecting in home and industry. It can detect LPG, i-butane, propane, methane ,alcohol, hydrogen and smoke. -
This is a breakout board for the fully integrated Hall Effect based linear ACS712 current sensor. The sensor gives precise current measurement for both AC and DC signals. Thick copper conductor and signal traces allows for survival of the device up to 5 times overcurrent conditions. The ACS712 outputs an analog voltage output signal that varies linearly with sensed current. The device requires 5VDC for VCC and a couple of filter capacitors. Please keep in mind that though the ACS712 is rated for 2.1kV isolation, the PCB it is on is not designed for that type of voltage. Please keep that in mind if you are using this breakout in high voltage applications. -
Reading Sensing and Controlling current flow is a requirements in a wide variety of application including, over-current protection circuits, switching mode, battery chargers, power supplies, digital watt meter and programmable current source, etc.. The ACS721 current reading module is based on ACS712 Sensor which can detect AC, DC current signal accurately. The maximum AC / DC can be detected using ACS712 will reach 30 amp and present current signal can read via analog IO port of Arduino, Product available for this module are 30A, 20A, 5A. for this demonstration we will used the ACS712 30A. -
It is a 75MM X 60MM solar cell. Which has 7.5V / 50MA rating. -
It is a durable probe essential for outdoor use. This also comes with a green LED for directing users where to touch. The probe comes with a brass M18 x 1 nut for panel mounting. Since the body of the probe also forms the ground contact, the panel should be of non-conducting material to avoid ground loops. The 30cm cable with connector is provided for easy connection to the system microcontroller. -
Features:- Fine and elegant workmanship
- Fast response time
- Strong anti-interfere
- Great performance
- Easy to install
- Material: Plastic
- Size: Approx. 61 x 27 x 16mm
- Inner size: Approx. 42.2 x 22.2mm
- Circuit board: Approx. 42 x 22mm
- Diagonal distance between two screws is 35.5mm
- If the thickness of board is 1.6mm, it can be equipped w/ 2.6 x 6mm screws
- If board is smaller than 1.6mm, it can be equipped w/ 5.5mm or shorter screws
- Suitable for sensor, SCM experiment
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