IOS 7.0 (Or above) can use the function of Pedometer,Sleep monitor and Alarm.(Other function will be updated in the future)
Functions of sport data recording, sleep quality monitoring, smart alarm clock wake up,calls reminder(Need set in app)
Short immersion under normal temperature and pressure, when the housing is temporarily immersed in 1M deep water will not cause harmful effects(Not for swimming or diving)
The miband can unlock your Mi phone without a password(Use for MI phone only)
Electric Socket Wall AC Power Outlet Voltage Detector Sensor Tester Pen 90-1000V
The next generation AC non-contact voltage testers are easy to use ? just touch the tip to a terminal strip, outlet, or supply cord. When the tip glows red and the unit beeps, you know there is voltage present. Electricians, maintenance, service, safety personnel, and homeowners can quickly test for energized circuits in the workplace or at home.
Frequency Range: 50 to 500 Hz
Test Voltage Range: 90-1000V AC
Safety Rating : CAT II 1000v
Powered By: 2 x AAA Batteries (Not included)
A perfect tool kit for home and electric industry uses
Ideal design for testing power cables, circuit breakers, wall sockets, junction boxes, fuses, etc
Just press the button, white LED light can be always on when there is absence of voltage
"Beep" sound and red flashing LED would indicate the presence of voltage
Totally insulated, no exposed metal or conductive parts
Automatic detection of NPN and PNP transistors, N-channel and P-channel MOSFET, diodes (including dual diode), thyristors, transistors, resistors and capacitors and other components,
Automatic test out the pin element and displayed on the LCD
Can be detected to determine the transistor emitter forward bias voltage of the transistor, MOSFET protection diode and the amplification factor of the base
Measure the gate threshold voltage and gate capacitance of the MOSFET
LCD display uses LCD 1 2864
High test speed, valid component test: 2 seconds (except in the larger capacitor of large capacitance measurement also takes a long time, the measured time of one minute is normal)
6. Data upload real time,the max of depth of collection is 10T,far from practical need.
A total of eight digital channels, =voltage range is 0V ~ 5.5V, the voltage threshold is considered to be low below 1.5V, 1.5V above is considered high.
Package includes the main device, 10pins of dupont cable and one USB cable.
See basic how it works and how to use the introduction video below.
Samples : How much samples to collect, Mhz: frequency of sampling, so 50M * 1Mhz will be 50 total sampling time.
This one is a starter version, different to Saleae16, which has 100Mhz, 16-channel version
Your about to purchase the most unique yet such a simplified device to hit 2014. Your very own VIRTUAL REALITY device.This is a simple and inexpensive DIY virtual reality glasses; Installation process is simple and can be completed within 3 minutes; With Cardboard App, you can DIY a virtual reality glasses, like Oculus Rift VR glasses.
Have amazing fun for the price of a few bags of peanuts.
Our kits are 100% top quality with the highest quality lenses ,For more details on what Google
cardboard is, and where to get the app from see here:
Description:
Weight:100g
Type:3D Glasses
Material:Cardboard + resin lens
Color:Brown
Dimensions:13.5cm*9cm*8cm
Quantity:1 Piece
Suitable for every smart phone running Android 4.1 and above with a screen no greater than 5.1".
NFC compatible phones take advantage of the NFC feature of the kit. Non NFC phones will still work without this feature on your phone.
Installation process is very simple and inexpensive DIY Google virtual reality glasses
Note:This is an unofficial Google Cardboard VR Kit.This kit does not include NFC component.Cardboard applications can be run on most modern Android Android phones runing Android 4.1 (Jelly Bean) & late versions of Android. Google cardboard App can be downloaded from google play store.
This module can be used to test the current and voltage
The principle of voltage test based on principle of resistive voltage divider design, can make the red terminal connector input voltage to 5 times smaller
for Arduino analog input voltages up to 5 v, the voltage detection module input voltage not greater than 5Vx5=25V (if using 3.3V systems, input voltage not greater than 3.3Vx5=16.5V).for Arduino AVR chips have 10-bit AD, so this module simulates a resolution of 0.00489V (5V/1023), so the minimum voltage of input voltage detection module is 0.00489Vx5=0.02445V
The MAX471 chip on the board used to test the consume current of the load
Test Voltage range: DC3 - 25V (for Arduino work on 5V) or DC3 - 16.5V (for Arduino work on 3.3V)
Test Current range: DC0 - 3A
PCB Size: 22*21*7mm/0.86*0.82*0.27"
Quantity:1pc
* Content
- Connect
VT - A0
AT - A1
GND - GND
GND - GND
VIN - 3V~25V
GND - GND
VOUT - LOAD LED 12V VCC
GND - LOAD LED GND
- Key Code
#include <Wire.h>
#include <LiquidCrystal_I2C.h>
#define VT_PIN A0 // connect VT
#define AT_PIN A1 // connect AT
#define ARDUINO_WORK_VOLTAGE 5.0
LiquidCrystal_I2C lcd(0x27,20,4); // LCD2004
void setup()
{
lcd.init(); // initialize the lcd
lcd.backlight();
lcd.print("start LCD2004");
delay(1000);
lcd.clear();
}
void loop()
{
lcd.setCursor(0,0);
lcd.print("B145:MAX471");
int vt_temp = analogRead(VT_PIN);
int at_temp = analogRead(AT_PIN);
double voltage = vt_temp * (ARDUINO_WORK_VOLTAGE / 1023.0) * 5;
double current = at_temp * (ARDUINO_WORK_VOLTAGE / 1023.0);
