LM358 100 Times Gain Amplification Module Operational Amplifier Module
- On-board LM358 Chip
- 100 times gain circuit design
- On-board LM358 chip
- On-board 10K adjustable resistor, could adjust amplifier times
- On-board power indicator lamp
- All pins lead, directly Input/output signals
- Working voltage: 5V-12V DC
- The chip has led major pin can be directly input and output signals.
- PCB size: 32.7mm x 13.3mm
Water Proof RTD PT100 Temperature Sensor, Stainless Steel
MQ135 SENSOR
- Operating Voltage: 3.3 – 5V.
- Detect/Measure NH3, NOx, alcohol, Benzene, smoke, CO2, etc.
- Analog output voltage: 0V to 5V
- Digital output voltage: 0V or 5V (TTL Logic)
- Detection range:10 ppm-300 ppm NH3, 10 ppm-1000 ppm Benzene, 10 ppm-300 ppm Alcohol
- Heating voltage (high): 5V ± 0.1
- Heating voltage (low): 1.4V ± 0.1
- Load resistance: Adjustable
- Heating resistance: 33Ω ± 5%
- Heating consumption: less than 800mW
- Detection temperature: 20℃±2℃
- Relative humidity: 65%+-5%RH
- Preheat duration 20 seconds
- Can be used as a digital or analogue sensor
- Â The sensitivity of Digital pin can be varied using the potentiometer
- It has a long life and low cost.
- Possesses high sensitivity to ammonia, benzene, sulfide gases.
- simple drive circuit
IR Proximity Module using TSOP
- Operating wavelength: Near-infrared region 700 nm to 1400 nm
- Main Chip: LM358
- Operating Voltage Range: 3.6V-5V DC
- Average Current Consumption: 06mA
- Distance Measuring Range: 2 to 30cm
- Detection angle: 35 °
- Easy to assemble and use
- On-board detection indication
- the effective distance range of 2cm to 80cm
- A pre-set knob to fine-tune distance range
- If there is an obstacle, the indicator lights on the circuit board
- 3mm screw holes for easy mounting
- Dimensions: 48 x 14 x 8mm
- Weight:5gm
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
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
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
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
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
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
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
ESP8266 ESP-12F
- Communication interface voltage: 3.3V
- Working current: 240mA(MAX)
- Serial port baud rate: 115200 (default), can be modified to other values by AT command
- Serial communication format: 8N1
- Wireless Network Mode: station / softAP / SoftAP + station
- Wireless criteria: 802.11 b / g / n
- WIFI @ 2.4 GHz, support for WPA / WPA2 security mode
- +19.5dBm output power
- Compatible with ESP-12（ESP-202）
- It is very easy to develop projects with AT commands
- Surface Mount Package with 2mm Pitch Pads
- Mulitple GPIO’s for all your sensor needs
- Integrated TCP/IP protocol stac
- Integrated TR switch, balun, LNA, power amplifier and matching network
- Integrated PLL, regulators, DCXO and power management unit
- Power down leakage current of <10uA
- Integrated low power 32-bit CPU could be used as an application processor
- SDIO 1.1/2.0, SPI, UART
- STBC, 1×1 MIMO, 2×1 MIMO
- A-MPDU & A-MSDU aggregation & 0.4ms guard interval
- Wake up and transmit packets in < 2ms
- Standby power consumption of < 1.0mW (DTIM3)
- Both SMD and Inline package are available, and the pin pitch is 2.0mm.