MQ3 Sensor
- Operating Voltage: 5V ±0.1
- Detecting Concentration: 0.05-10mg/L Alcohol
- Current Consumption : 150mA
- Operation Temperature : -10°C ~ 70°C
- Heater consumption: less than 900mW
- Load resistance: Adjustable
- Heating resistance: 33Ω ± 5%
- Easy SIP header interface
- Compatible with most of the microcontrollers
- Low-power standby mode
- Requires heater voltage
- Good sensitivity to alcohol gas
- Fast response and High sensitivity
- Requires simple Drive circuit
- Dimensions: 32 x 22 x 16 mm
MQ3 Module
- Interface Type: Analog & Digital
- Working voltage: DC 5V
- Working Current: 150mA
- DOUT: TTL output
- AOUT: Analog output
- Preheat time: Over 20s
- Detection Range: 0.05 mg/L to 10 mg/L
- Sensitive to Alcohol, Benzine, CH4, Hexane, LPG, CO
- High Sensitivity to Alcohol & small sensitivity to Benzine.
- Digital Out is High or Low based on an adjustable preset threshold,
- 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
MQ135 Module
- Working voltage: DC 5V
- Working Current: 150mA
- DOUT: TTL output
- AOUT: Analog output
- Preheat time: Over 20s
- Detection Range: 10 - 300 ppm NH3, 10 - 1000 ppm Benzene, 10 - 300 Alcohol
- Sensitivity to Ammonia, Sulphide, and Benzene steam
- With signal output instructions
- The TTL output signal is a low level
- Analog 0 ~ 5 v voltage output, the higher the concentration, the higher the voltage
- Sensitive for benzene, alcohol, smoke
- Fast response and recovery
- Adjustable sensitivity
- Signal output indicator
- Dimension: 32mm x 22m x 27mm
DS18B20 MODULE
- Resolution: 9bits to 12bits (Selectable)
- Supply Voltage (V): 3 to 5.5
- Temperature Range(°C): -55 to +125
- Measuring Accuracy(°C): ±0.5
- Uses 1-Wire interface- requires only one digital pin for communication
- Unique 64 bit ID burned into the chip
- Multiple sensors can share one pin
- Maximum conversion time and response: 750 ms
- Multidrop capability simplifies distributed temperature sensing applications
- Requires no external components
- Digital signal output
- 18B20 Temperature Sensor Chip
- Send data via a pin
- User-definable nonvolatile (NV) alarm settings
- Dimension: 19*15*6cm
- Weight: 9gm
LIPO Voltage Battery Tester
- Input: 1S-8S Battery
- Battery Type: Lipo/LiFe/Li-ion/LiMn
- Voltage Detection Precision: +/- 0.01V
- Unit Voltage Display Range: 0.5V to 4.5V
- Total Voltage Display Range: 0.5V to 36V
- 1S Test Mode Voltage Range: 3.7V to 30V
- Low voltage alarm mode for 2-8S
- Alarm Set Value Range: OFF~2.7V to 3.8V
- Buzzer Alarm for low voltage indication.
- Useful for measuring each cell voltage.
- It has a mode button at the top for setting the desired voltage value.
- Dimension: 4*2.5*1cm
MICRO SD CARD ADAPTER
- Support Micro SD (<=2G), Micro SDHC cards(<=32g)
- Operating voltage: DC 2.6 V to 3.6V
- Quiescent current: 16 μA
- Support playing of 4-bit ADCPM format
- Support FAT files system SD carrier
- Recognize voice files automatically
- Support microprocessor and key control
- Audio output: 16bit DAC and PWM
- Maximum voice storage: 512 voice
- The level conversion circuit board that can interface level is 5V or 3.3V
- Communication interface is a standard SPI interface
- The power supply is 4.5V~5.54V, 3.3v
- Dimension: 4.1*2.4CM
16*1 CHARACTER BLUE LCD DISPLAY FOR AURDINO/RASPBERRY PI/ROBOTICS
XH-W1219 12V Digital Display Temperature Controller Module W/NTC Waterproof Temperature Sensor
LM 2576HV Buck Module
- Module Properties: non-isolated constant voltage module
- Rectification: non-synchronous rectification
- Input voltage: 4.5V-60V
- Output Voltage(Less than input): 1.3V-26V
- Continuous operating current: 1.2A (output total power within 20W)
- Output current: 3A maximum
- Conversion efficiency: 92% (maximum)
- Switching frequency: 52KHz
- Output ripple: 50mV (maximum) 20M-bandwidth
- Load regulation: ± 0.5%
- Voltage regulation: ± 2.5%
- Operating temperature: -40 ℃ to +85 ℃
- Size: 43 * 30 * 14 mm
Smart 3pin DHT11 Digital Temperature And Relative Humidity Sensor Module + PCB
- Operating Voltage: 3.5V to 5.5V
- Operating current: 0.3mA (measuring) 60uA (standby)
- Output: Serial data
- Temperature Range: 0°C to 50°C
- Humidity Range: 20% to 90%
- Resolution: 1%RH humidity, temperature 1
- Accuracy: ±1°C and ±1%
- Low power consumption.
- The module can detect the surrounding environment of the humidity and temperature
- High reliability and excellent long-term stability
- The output from the digital output
- Has fixed bolt hole and easy installation
MAX485 TTL TO RS-485 MODULE
- Operating voltage: 5V
- On board MAX485 chip
- Slew rate limited transceiver
- All the pins of the chip are controlled by the microcontroller
- use differential signalling for immunity
- 120R terminating resistor
- Power LED indication
- Distances up to 1200 meters
- Use differential signalling for noise immunity
- Speeds up to 2.5Mbit/Sec
- Multi-drop supports up to 32 devices on the same bus
- Low power consumption
- On-board 5.08mm pitch 2P terminal to facilitate RS-485
- DIMENSION: 44*14mm
