HX 711 Module
- Differential input voltage: ±40mV (Full-scale differential input voltage is ± 40mV)
- Data accuracy: 24 bit (24 bit A / D converter chip.)
- Output Sensitivity: 1.0 ± 0.1 mV / V.
- Refresh frequency: 10/80 Hz
- Operating Voltage: 2.7V to 5VDC
- Operating current: <10 mA
- Recommended excitation voltage: 5-10V.
- Two selectable differential input channels.
- On-chip active low noise PGA with a selectable gain of 32, 64, and 128.
- On-chip power supply regulator for load-cell and ADC analogue power supply.
- Selectable 10SPS or 80SPS output data rate.
- On-chip oscillator requiring no external component with optional external crystal.
- On-chip power-on-reset.
- Simple digital control and serial interface: pin-driven controls, no programming needed.
- Simultaneous 50 and 60Hz supply rejection.
- Dimension: 24x16mm
MQ2 module
- Interface Type: Analog & Digital
- Working voltage: DC 5V
- Working Current: 150mA
- DOUT: TTL output
- AOUT: Analog output
- Preheat time: Over 20s
- Detection Range: 300 -10000 ppm
- Sensitive to H2, LPG, CH4, CO, Alcohol, Smoke or Propane,
- Digital Out is High or Low based on an adjustable preset threshold,
- High Sensitivity to Smoke & combustible gasses like Hydrogen, LPG & Propane.
- Stable & Long Life.
- Onboard Power indication
- The TTL output signal is a low level
- Analog 0 ~ 5 v voltage output, the higher the concentration, the higher the voltage
- Fast response and recovery
- Adjustable sensitivity
- Dimension: 32mm x 22m x 27mm
MQ4 Module
- Interface Type: Analog & Digital
- Working voltage: DC 5V
- DOUT: TTL output
- AOUT: Analog output
- Detection Gas: Natural gas/Methane
- Detection range: 300 to 10000ppm
- Digital Out is High or Low based on an adjustable preset threshold,
- Stable & Long Life.
- Onboard Power indication
- Standard Encapsulation Bakelite, Metal cap
- Good sensitivity to Combustible gas in a wide range
- High sensitivity to CH4, Natural gas.
- Small sensitivity to alcohol, smoke.
- Fast response and recovery
- Adjustable sensitivity
- Dimension: 32mm x 22m x 27mm
MQ5 Module
- Operating voltage: 5V
- Interface Type: Analog & Digital
- Dual signal output (analogue output, and TTL level output)
- Detecting concentration：200-10000ppm
- The TTL output signal is low. (When low output signal light, and can be connected directly to the microcontroller
- High Sensitivity to LPG, Natural Gas, Town Gas
- small sensitivity to smoke & alcohol
- Low Cost.
- Stable & Long Life.
- Simple drive circuit.
- Fast response.
- Onboard Power indication.
- Adjustable sensitivity
- Dimension: 32mm x 22m x 27mm
MQ6 Module
- Interface Type: Analog & Digital
- Working voltage: DC 5V
- Dual signal output (analogue output, and TTL level output)
- Detection Gas: Propane, Butane, and LPG
- Detection range: 300 to 10000ppm
- The TTL output signal is low. (When low output signal light, and can be connected directly to the microcontroller)
- Onboard Power indication
- Good sensitivity to Combustible gas in a wide range
- Can be resistant to ethanol steam, LPG (petroleum), smoke interference.
- Simple drive circuit
- An indication of the signal output
- High sensitivity to hydrogen.
- Has a long life and reliable stability.
- Fast response and recovery characteristics.
- Adjustable sensitivity
- Dimension: 32mm x 22m x 27mm
MQ7 Module
- Operating voltage: DC 5 V.
- Interface Type: Analog
- The analogue output voltage, the higher the concentration the higher the voltage.
- Detection Gas: carbon monoxide
- Detection range: 10 to 10000ppm
- Four screw holes for easy positioning.
- Has a long life and reliable stability.
- Fast response and recovery characteristics.
- Adjustable sensitivity
- Dimension: 32mm x 22m x 27mm
MQ8 Module
- Interface Type: Analog & Digital
- Working voltage: DC 5V
- Dual signal output (analogue output, and TTL level output)
- Detection Gas: Hydrogen
- Detection range: 100 to 10, 000 ppm
- The TTL output signal is low. (When low output signal light, and can be connected directly to the microcontroller)
- Onboard Power indication
- Good sensitivity to Combustible gas in a wide range
- Can be resistant to ethanol steam, LPG (petroleum), smoke interference.
- Simple drive circuit
- An indication of the signal output
- High sensitivity to hydrogen.
- The higher the voltage, the concentration of the analogue output voltage is higher.
- Four screw holes for easy positioning
- Has a long life and reliable stability.
- Fast response and recovery characteristics.
- Adjustable sensitivity
- Dimension: 32mm x 22m x 27mm
Rain Drop Sensor
- Operating voltage: 5V
- Provide both digital (DO) and analogue (AO) output
- Adjustable sensitivity with inbuilt potentiometer
- Output LED indicator
- Compatible with Arduino
- TTL Compatible
- Bolt holes for easy installation
- Voltage compactor IC: LM393
- Antioxidant material
- Treatment of nickel plating and surface, have fight oxidation, electrical conductivity, and life has more superior performance
- Comparator output signal clean waveform is good, driving ability, over 15mA
- Anti-oxidation, anti-conductivity, with long use time
- With bolt holes for easy installation
- PCB or module size: 30mm x 16mm
- Control board size: 54mm x 40mm
- Weight: approx. 8g
Soil Moisture Sensor
- Operating voltage: 3.3V to 5V Operating Current: 5mA.
- Dual output mode, analogue output and digital output
- Analogue output is more accurate
- Fixed bolt hole for easy installation
- Onboard power indicator (red) and digital switching output indicator (green)
- LM393 comparator chip
- Panel PCB Dimension: Approx.3cm x 1.5cm
- Soil Probe Dimension: Approx. 6cm x 3cm
- Cable Length: Approx.21cm
- Dimensions: 98 x 23 x 4.mm
- Weight (gm): 15
TCRT5000 Module
- Model TCRT5000
- Chipset LM393
- Operating Voltage: 3.5-5 VDC
- Detection distance 1-25mm
- Operating Current: 15 mA
- Output Channel 0 or 1
- Focal Distance: 2.5 mm
- Designed with a reflected infrared sensor, indicator light.
- Built-in a potentiometer for sensitivity control.
- On-board signal output instructions, the output is a highly effective signal at the same time, the indicator lamp light output signal can be directly and single-chip microcomputer IO connection.
- Signal detection sensitivity can adjust.
- Reserve all the way more circuits (P3 voltage drawn)
- Output form: digital switch output (0 and 1)
- A fixed bolt hole, convenient installation.
- Dimension:32*11*20mm
- Weight:22gm
Water Level Sensor
MT8870 DTMF Audio/Speech Decoding Telephone Module
- Power Input: 5V Nominal (4.5V - 5.5V)
- 5 Channel Interface
- Detects 0-9, A-D, *, #
- 54” Pin pitch
- On-board 3.5mm jack input Facility
- On-board MT8870 frequency decoder chip
- On-board voice input interface
- On-board LED lights for output state indication
- Low power consumption
- Internal gain setting amplifier
- Adjustable guard time
- 5 Channel interface
- Power-down mode
- Inhibit mode
- Does not require external circuits or wiring,
- Dimension: 37 x 25 x 12 mm