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
Voice Module Sound Module Audio Player WT588D
- Input Supply voltage (V) :2.8 ~ 5.5
- Current consumption (sleep mode: 10 µA
- Sampling frequency (kHz): 6 ~
- Built 13Bit/DA converter, and 12Bit/PWM output.
- Support for loading WAV audio formats
- Module package (with FLASH memory and peripheral circuits) have DIP16, DIP28, chip packaging has DIP18, SSOP20, and LQFP32 form
- Built 13Bit/DA converter, and 12Bit/PWM output
- PWM output can directly drive 0.5W/8Ω speakers, push-pull current abundant support DAC / PWM output of two ways;
- Support for loading WAV audio formats;
- USB download mode, support for online download / offline download; WT588D voice chip, even in the case of electricity, will also be able to download the data to the normal SPI-Flash;
- Supports MP3 control mode, control mode button, 3 × 8 key combination control mode, parallel control mode, front-line serial control mode, three-wire serial control mode, and three-wire serial control I / O port expansion output mode;
- Support load 6K ~ 22KHz audio sampling rate
- Up to 500 segments can be loaded for editing audio
CJMCU Guva S12SD Sunlight Ultraviolet UV Ray Intensity
- Power supply voltage of 2.5 V ~ 5 V
- Low power consumption
- Wide detection range: 240 nm to 370 nm
- Wide Angle: 130 degrees
- Schottky type photosensitive diode
- Good linear response
- High sensitivity
- Low power consumption
- Power supply voltage of 2.5 V ~ 5 V
- Working current is microamps.
- High sensitivity
- High stability
- Wide detection range: 240 nm to 370 nm
- Wide Angle: 130 degrees
- Schottky type photosensitive diode
- Dimension: 11 mm x 27 mm
NODMCU Esp8266-12 USB CP2102
- 11 b/g/n Wi-Fi Direct (P2P), soft-AP
- Integrated TCP/IP protocol stack
- CP2102 Serial / USB Chip
- +19.5dBm output power in 802.11b mode
- 4MB Flash Memory
- Integrated low power 32-bit CPU
- SDIO 1.1 / 2.0, SPI, UART
- Dimensions – 49 x 24.5 x 13mm
- Integrated TR switch, balun, LNA, power amplifier and matching network
- Integrated PLLs, regulators, DCXO and power management units
- On board USB to serial chip to easily program and upload codes from the Arduino IDE
- Embeds logic level converter circuits
- Has on board 3.3V regulator to ensure enough power to function as your go-to WiFi chip!
- Easy access to the GPIO pins for easy prototyping
- ESP-12E Processor
- Easy to use breadboard friendly form factor
- Voltage Regulator / Converter, excellent DC to DC conversion, super efficientESP-12E Processor
- Easy to use breadboard friendly form factor
Zigbee CC2500 RS232
- RS-232 direct interface
- TTL support
- RSSI value between two modules can be obtained
- Separate LED for RX, TX, and power
- 4-bit channel selection
- Programmable output power
- Automatic packet processing
- 6 data pipes for 1:6 star networks
- 4-pin SPI interface with maximum 8 MHz clock rate 7
- 20-pin 4x4mm QFN package
HC-06 RF Wireless Bluetooth Bee V2.0 Module Xbee V03 Shield Board Arduino
- Power supply: 3.3V
- A power supply of more than 3.3V will destroy the module.
- Paring user’s name: HC-05
- Default baud rate: 9600
- Default slave model
- Default pairing password: 1234
- It can be used for an MCU system whose voltage is 3.3V.
- Users can set baud rate, paring password, and user’s information by AT command.
- Bluetooth adapter pairs with Bluetooth Bee salve device.
- With an efficient onboard antenna, the exposed antenna qualifies the transmit signal and make it farther.
- Be used with for Arduino Bluetooth Bee module, it can communicate with other Bluetooth device wireless
- Be used with Xbee module to achieve communication between more than two for Arduinos or communication between for Arduino and PC
- Dimension: : 3.3 x 2.5 x 0.9 cm
- Weight: 5g
MEMS Microphone Breakout – INMP401 (ADMP401)
- -3dB roll off at 100Hz and 15kHz
- supply voltage: 1.5 to 3.3VDC
- Should comfortably output 40mW
- SNR of -62dBA
- Should comfortably output 40mW
- Omnidirectional MEMS microphone
- High SNR
- Sensitivity of −42 dBV
- Low current consumption of <250 μA
- Single-ended analogue output
- High PSRR of 70 dB
- Compatible with Sn/Pb and Pb-free solder processes
- 72 mm × 3.76 mm × 1.0 mm surface-mount package
Arduino Compatible Nokia 5110 Prototype Proto Shield Expansion Board
- Supports Nokia5110 display
- Standard 0.1"x0.1" prototyping grid with big pads
- Comes with Stacking headers and plain header, choose whichever you want when soldering together
- Â IC pattern for adding DIP ICs up to 20 pins
- Power rails down the middle and sides
- Reset button and an extra general use button
- 2 3mm general use LEDs, red and green, as well as 2 matching resistors
- A pass-thru ICSP stacking header so you can stack any kind of shield on top, and/or use an AVR programmer
- Surface-mount chip area for up to 14 SOIC size parts
- Compatible with tiny breadboards
- Every pin is brought out
- Gold plated pads
- 2 x 0.1uF capacitors on either side for extra power stability
EYE BLINKING SENSOR
- Working Voltage +5V DC
- TTL output 5V or 0VSimple setup.
- Remote detection - no mechanical contact with the eye.
- Stray visible and IR light not affected.
- Our system does not require the restraint of the external eyelids.
- Head movement not affected.
- Excellent frequency characteristics (DC to more than 500 Hz).
- Excellent working distance (15-25 mm).
- Difficult to calibrate using common units of eye blink measurement. (e.g. mm of eyelid displacement)
Ina219 I2C BiDirectional DC Current Power Supply Sensor Breakout Module
- 1 ohm 1% 2W current sense resistor
- Up to +26V target voltage
- Up to ±3.2A current measurement, with ±0.8mA resolution
- Senses Bus Voltages from 0 to 26 V
- I2C- or SMBus-compatible interface. The
- Reports Current, Voltage, and Power
- 16 Programmable Addresses
- Filtering Options
- Calibration Registers
- SOT23-8 and SOIC-8 Packages
- Using a single power supply, the working voltage is between + 3.0 to + 5.5 V.
- Calibration programmable registers directly read its unit of measure in the ampere current, and power in watts per reading.
- For as many as 128 samplings averaging, in order to realize filter in the noise environment.
- The I2C interface timeout, not only avoid the bus lock but also can provide high-speed mode, meet the communication requirements of up to 3.4 MHz.
- Supported software programmable INA219.
- Dimensions: 0.9*0.8inch
- Weight: 1.9g
Bluetooth Module HM-10 BLE 4.0 CC2540
- BT Version: Bluetooth Specification V4.0 BLE
- Working frequency: 2.4GHz ISM band
- Operating voltage of Module: 2.0V – 3.6V
- Modulation method: GFSK (Gaussian Frequency Shift Keying)
- Send and receive no bytes limit.
- Working frequency: 2.4GHz ISM band
- UART Serial Interface
- Full-Speed USB Interface
- 12 General Purpose Input/output Pins
- In-System-Programmable Flash- 128 KB or 256KB
- 8-KB SRAM
- 32-kHz Sleep Timer With Capture
- Long-range: Open space has 100 Meters
- RF Power: -23dbm, -6dbm, 0dbm, 6dbm
- Speed: Asynchronous: 2-6K Bytes, Synchronous: 2-6K Bytes
- Power: +2.5V~3.5VDC 50mA
- Power: Active state 8.5mA; Sleep state 50~200uA
- Working temperature: –20 ~ +105 Centigrade
- Dimension: 27mm x 13mm x 2.2 mm