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
Nano V3 Ethernet Shield
NE555 PULSE FREQUENCY ADJUSTABLE MODULE
- Input voltage: DC 5V-15V
- Output amplitude: 4.2V V-PP to 11.4V V-PP
- Input current: 100mA
- Output current: 15mA for 5v & 35 mA for 12v
- 50% duty cycle form 3.7hz(minimum)
- 98% duty cycle for 1.3 KHz(max)
- Output LED indication
- Generate adjustable pulse for MCU
- Generate adjustable pulse to control circuitry
- Dimension: 31*22*2mm
NOKIA DISPLAY MODULE
- Display technology: dot matrix LCD
- MCU interface: SPI
- Screen size: 1.5 inch
- Resolution: 84*48 pixels
- Operating voltage: 2.7v-3.3v
- Operating current: 50mA
- Current consumption: 6mA
- Consist of a Philips PCD8544 interface chip for easy interfacing
- Support decent graphics of bitmap images
- Available in green and blue backlight
- Viewing angle: 180 degree
- supports different types of MCU, such as Arduino, AVR, SPI, M, CS51
- Transfer rate up to 4Mbps, can full speed write data without waiting time
- Dimension:10.16*7.62*1.27cm
- Weight: 10gm
OpAmp Breakout – LMV358
OV7670 Camera Module
- Model: OV7670 640X480 VGA CMOS CAMERA
- I/O Voltage: 2.5V to 3.0V
- Operating Power: 60mW/15fpsVGAYUV
- Sleeping Mode: <20μA
- Operating Temperature: -30 to 70 degrees Celsius
- Pixel Coverage: 3.6um x 3.6um
- Lens Size: 1/6″
- Vision Angle: 25 degrees
- Frame Rate: 30fps VGA
- Sensitivity: 1.3V / (Lux-sec)
- Signal to Noise Ratio: 46 dB
- Dynamic Range: 52 dB
- Browse Mode: By row
- Electronic Exposure: 1 to 510 row
- Duck Current: 12 mV/s at 60℃
- PCB Size (L x W): Approx. 1.4 x 1.4 inch / 3.5 x 3.5 cm
- Support VGA, CIF and from CIF to 40 x 30 format
- Various Pixel methods for sub-sampling; Auto Image Control: AEC, AGC, AWB, ABF, ABLC;
- Image Quality Control: Colour saturation, hue, gamma, sharpness, and anti-blooming;
- DSP includes noise reduction and defect correction; Support image scaling; Lens shading correction;
- Flicker 50/60Hz auto-detection
- Colour saturation level auto adjust
- Edge enhancement level auto adjust
- De-noise level auto adjust
- High sensitivity for low light applications
- Low voltage suitable for embedded applications
- Standard SCCB interface, compatible with I2C interface
PCF8591 ADC-DAC
- Operating voltage range: 2.5V-6V
- Low standby current
- I2C bus serial input/output
- PCF8591 by 3 hardware address pins addressing
- PCF8591 I2C bus speed sampling rate decided 4 analogue inputs programmable single-ended or differential input
- Automatic incremental channel selection
- PCF8591 analogue voltage range from VSS to VDD
- On-chip track-and-hold circuit
- 8-bit successive approximation A / D converter
- 1 analogue output DAC gain
- Single power supply
- Module power supply indicator lights
- DA output indicator
- Dimension: 3.6*2.3cm
PH Tester Soil Water Moisture Light Test Meter Sensor
- Three different soil test meters in one device; Measures moisture, pH/Acidity, and light.
- Detector shape: Needle ( 1pc Copper needle, 1pc Silver needle)
- Needle length: approx. 210mm/8.26'
- Moist value (1-10RH): 1-3(Red): need water, 4-7(Green): favorable moisture, 8-10(Blue): too wet
- pH value (8-3.5): Neutral solution : =7, Acid reaction : <7, Alkaline reaction : >7
- Light value (0-2000 Lux)
- Higher values mean the greater the intensity of the light
- Help you to determine if the plant getting adequate light
- Total Length:250 mm
- Probe Length:170 mm
- Probe Diameter:5 mm
- Material: Body: Plastic
- Probe: Stainless Steel & Aluminium
- 100% Accuracy; Easy to read moisture, pH, and light levels;
- No battery is required, simple and convenient to use.
- Working temperature: 5 degrees -50 degrees C
- Dimension: 285*50*30mm
- Weight: approx. 57g