arduino hall road

?Key Features :

1. DIY Projects
2. Battery-operated toys
3. Disk drives Steel rolling?mills?Paper
4. Machines Medical equipment
5. Radio-controlled aircraft
6. Automobiles Drive systems Positioning
7. Industrial and consumer actuators Winches Robotics Mixers
8. Robotic projects

?Key Features :

1. • Modes?Toggle or switch.
   • Operating current @VDD=3V, no-load, SLRFTB=1.
   • The response time max about 60mS at fast mode, 220mS at low power mode @VDD=3V.
   • Sensitivity can adjust by the capacitance(0~50pF) outside.
   • Have two kinds of sampling length by pad option(SLRFTB pin).
   • Stable touching detection of the human body for replacing traditional direct switch key.
   • Provides Fast mode and Low Power mode selection by pad option(LPMB pin).
   • Provides direct mode toggle?mode by pad option(TOG pin), the open-drain mode by bonding option, OPDO pin is an open-drain output, Q pin is CMOS output.
   • All output modes can be selected active high or active low by pad option(AHLB pin).
   • Have the maximum on-time 100sec by pad option(MOTB pin).
   • Have external power-on reset pin(RST pin).
   • After power-on have about 0.5sec stable-time, during the time do not touch the keypad, And the function is disabled.
   • Auto calibration for life.
   • Re-calibration period is about 4.0sec when the key has not to be touched.

Key Features:

• NEW IMPROVEMENT: Clear prints on the female header connector, more precise and easier to use the wire.
• The ELEGOO UNO R3 BOARD now uses an ATMega16U2 instead of the ATMega8U2 chip. Faster transfer rates and more memory.
• Control using ATMEL ATMEGA328P chip(the same with Arduino UNO R3)
• 100% compatible with the Arduino IDE and RoHS Compliant
• The Uno board can be powered via the USB connection.
• The Uno board can be powered with an external power supply.
• Excellent welding and production quality to make sure satisfied customer experience
• The RX and TX LEDs on the board will flash when data is being transmitted via the USB-to-serial chip and USB connection to the computer.
• We have always cared about the customer experience and improve the product function details.

?Key Features :

1. • Dimensions: 28 x 14 x 13 mm(LxWxH).
   • Weight: 4 gm.
   • Input Voltage range: DC0 to 25 V
   • Voltage detection range: DC 0.02445 V to 25 V
   • Analog Voltage resolution : 0.00489 V
   • Output Interface : ?+ ? connected 5/3.3V, ?-? connected GND, ?s? connected Arduino AD pins
   • DC input interface: red terminal positive with VCC, negative with GND
   • You can also use the IICLCD1602 LCD to display voltage.
   • By 3P connector, connect this module with the expansion of board Arduino, not only makes it easier for you to detect voltage battery.

?Key Features :

1. • Model: YF-S201
   • Sensor Type: Hall effect
   • Working Voltage: 5 to 18V DC (min tested working voltage 4.5V)
   • Max current draw: 15mA @ 5V
   • Output Type: 5V TTL
   • Working Flow Rate: 1 to 30 Liters/Minute
   • Working Temperature range: -25 to +80?
   • Working Humidity Range: 35%-80% RH
   • Accuracy: ?10%
   • Maximum water pressure: 2.0 MPa
   • Output duty cycle: 50% +-10%
   • Output rise time: 0.04us
   • Output fall time: 0.18us
   • Flow rate pulse characteristics: Frequency (Hz) = 7.5 * Flow rate (L/min)
   • Pulses per Liter: 450
   • Durability: minimum 300,000 cycles
   • Cable length: 15cm
   • 1/2? nominal pipe connections, 0.78? outer diameter, 1/2? of thread
   • Size: 2.5? x 1.4? x 1.4?

?Key Features :

1. • Operating voltage: DC3-5V
   • Operating current: less than 20mA
   • Sensor Type: Analog
   • Detection Area: 40mmx16mm
   • Production process: FR4 double-sided HASL
   • Operating temperature: 10?-30? Humidity: 10% -90% non-condensing
   • Dimensions: 60mmx20mm

?Key Features :

1. Input voltage range?4?38VDC(Note: input voltage not exceeding 38V).
2. Output voltage range?1.25-36VDC adjustable.
3. Output current:?0-5A.
4. High efficiency up to 96%.
5. Output power:?75W.
6. Built-in thermal shutdown function
7. Built-in current limit function
8. In-Built output short protection function
9. Input reverse polarity protection: None (if required, the high current diode in series with the input).
10. Power Indicator:?Yes
11. Short circuit protection: Yes (limit current 8A)
12. Overtemperature protection: (automatically shut off the output after overtemperature)
13. Input reverse polarity protection: No, (if necessary, please enter the string into the high current diode)
14. Installation:?two 3mm screws
15. Dimensions(LxWxH): 54 x 23 x 15 mm

?Key Features :

1. Module properties: unfenced step-up (BOOST)
2. The input voltage: 3-32 v
3. Continuous adjustable output voltage: 5v-35 v
4. Input current: 4 a (Max), no-load 18 ma
5. Module size: 44.7 (mm) x21.7 (mm)
6. Input mode: IN + input level is, the IN ? negative input
7. Output mode: OUT + output level is, the OUT ? output is negative
8. Conversion efficiency: < 94% (the lower the pressure difference, the greater the efficiency)
9. Output ripple: 50 mv (the bigger the higher the voltage, current and ripple)