tetralink

 Key Features :

1. A Color-Coded Cable, with a standard male header connectors. Plug it straight into an Arduino or a Breadboard. No soldering is required.
2. The Pulse Sensor has 3 holes around the outside edge which make it easy to sew it into almost anything.
3. Visualization software (made in Processing) to instantly see the output of the sensor and for troubleshooting.

 Key Features :

1. Temperature and Humidity displayed in HUGE 1″ high numbers.
2. MAX / MIN Humidity & Temperature are recorded automatically and can be reset by the user
3. Fahrenheit or Celsius readout (changeable by selecting F or C on the back)
4. 12 or 24 hour time modes (changeable by using MODE & ADJ button to set)
5. ALARM function
6. MONTH & DAY display available by pushing ADJ button
7. Integrated back stand for desktop or table use OR hanging hole for wall mounting
8. Power: ONE standard AAA 1 .5v Battery
9. Time, and Temperature display, Humidity display; With the calendar, alarm clock and the maximum or minimum value of humiture memory functions; the convert of temperature and degree Fahrenheit, Talkclock.

 Key Features :

1. • 5V power supply.
   • Serial I2C control of LCD display using PCF8574.
   • The backlight can be enabled or disabled via a jumper on the board.
   • Contrast control via a potentiometer.
   • Can have 8 modules on a single I2C bus (change address via solder jumpers)address, allowing.
   • Size ：41.6 x 19.2 mm.

 Key Features :

1. Mechanical structure, easy to install.
2. This car has tachometer encoder
3. With 4 cell AA battery holder and power switch.
4. Can be used for distance measurement, velocity.
5. Can use with other devices to realize the function of tracing, obstacle avoidance, distance testing, speed testing, wireless remote control.
6. Gear Motor reduction radio: 1:48.
7. Size: 22cm x 14.7cm, wheel size: 7cm x 7cm x 2.6cm.
8. Note: motor power supply is 3V~6V.

 Key Features :

1. 1. 1. sensor adopts TR5000, high sensitivity
      2. sensitivity adjustable digital potentiometer to adjust (blue)
      3. modules can induction block from 0 to 3 cm
      4. 5 V working voltage of 3.3 V
      5. 5a output form the output analog voltage (0 to 5 v) B digital switch output (0 and 1)
      6. Has a fixed bolt hole, the work of the installation
      7. Small board PCB size: 3.5 cm * 1.5 cm
      8. The power indicator light (red) and digital switch output indicator light (green)
      9. Comparator USES the LM393 chips, work stability
      10. Three small plate interface specifications wire (4)
      11. 1 VCC external 3.3 V to 5 V
      12. 2 GND external GND
      13. 3 DO small plate digital output interface (0 and 1)
      14. 4 small AO plate analog output interface (0 to 5 v)

 Key Features :

1. Voltage: 3.0 V – 5 V.
2. Output: red laser straightly(650nm).
3. Driver: APC circuit.
4. Size: Φ 12.0 x35mm.
5. Line length: about 135 mm.
6. Transmit power: 58mW.
7. Operating Current: 40mA.
8. Operating temperature: -36 ~ 65◦C.
9. Pot size: 15 meters spot for φ10 mm ~ φ15.
10. Outer diameter: 6 mm.

 Key Features :

• • • 16 Characters x 2 Lines
    • Green Backlight
    • 5×7 Dot Matrix Character + Cursor
    • HD44780 Equivalent LCD Controller/driver Built-In
    • 4-bit or 8-bit MPU Interface
    • Standard Type
    • Works with almost any Microcontroller

 Key Features :

1. 1. 1. Independent interface:
         • The light-emitting module controls the red, yellow, and green lights separately, a total of four independent interfaces.
      2. Fast response:
         • The light-emitting module can respond super fast, with strong anti-interference ability and high-cost performance.
      3. Good performance:
         • The light-emitting module has ultra-low energy consumption, long transmission distance, and is very reliable.

Key Features:

• Model name: DC-DC LM2596S buck module
• Input voltage:3.2V~46V (recommended for use in 40V)
• Output voltage:1.25V~35V
• Output current:3A (maximum)
• Conversion efficiency:92% (highest)
• Output ripple:<30mV
• Switching frequency:65KHz
• Working temperature:-45 ~ +85
• Dimension:21mm * 43mm * 14mm (length * width * height)