
Reference: 984
Heat Shrink Tube
Heat Shrink Tubing 2:1, Eventronic Electrical Wire Cable Wrap Assortment Electric Insulation Heat Shrink Tube Kit (1 pcs) Please Choose Size Below
Reference: 984
Heat Shrink Tubing 2:1, Eventronic Electrical Wire Cable Wrap Assortment Electric Insulation Heat Shrink Tube Kit (1 pcs) Please Choose Size Below
Reference: 1354
Length: 8.5 inches (Medium) Material: Copper Plated.EachPin Spacing: 2.54mm.Color: Colorfulcompatible with 2.54mm mil spacing pin headers.It can be used for PCB project, pc motherboard, etc.Allow you to plug and unplug easily for prototyping.Package Contents: 1 x Jumper Wire You will get only one pcs.
Reference: 31
3 Types Available 1. Male to Male 2. Male to Female 3. Female-Female
Reference: 245
Choose your desire Resistor value from below:
Reference: 94
Arduino UNO in Bangladesh The Arduino Uno is a microcontroller board based on the ATmega328 (datasheet). It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16 MHz ceramic resonator, a USB connection, a power jack, an ICSP header, and a reset button. It contains everything needed to support the microcontroller.
The DS1302 is a Real Time Clock (RTC) or TimeKeeping Chip with a build-in Trickle-Charger.
Important note : Cheap modules with the DS1302 and DS1307 have often problems with the crystal and the voltage. They often don't work very well. You are strongly advised to use a DS3231, which is very reliable and accurate and needs only a battery to run (the crystal is inside the DS3231).
This is a cheap module with the DS1302:
(photo by Krodal, Public Domain. The RST pin is the old name for the CE pin. This circuit has pull-down resistors which are an extra, in many cases they are not needed.)
The page at maxim for the DS1302 with all information and datasheet: http://www.maxim-ic.com/datasheet/index.mvp/id/2685
For other programs and Real Time Clock chips, see the Time-section in the Playground index.
The DS1302 can be easily connected to the Arduino. Three pins are needed for the interface (CE, I/O, SCLK), and Vcc2 should be connected to +5V (or +3.3V). The Vcc1 is for a battery or a rechargable battery or a supercap.
A crystal of 32.768kHz should be connected to X1 and X2.
The DS1302 will run with a voltage from 2.0V to 5.5V.
The three pins for the interface should avoid to use the internal pull-up resistors of the Arduino. The DS1302 has internal pull-down resistors, and the CE and SCLK lines should be low when inactive.
Some schematics on the internet have pull-up resistors on the three interface lines. That is wrong. Other schematics use two 22pF with the crystal. That is also wrong. See the datasheet for full specifications and a circuit.
The DS1302 uses three lines (CE, I/O, SCLK). It is not I2C, it's not OneWire, and it is not SPI. The most used name is "3-wire interface".
The communication is straight forward, with one strange thing:
During reading, the clock could rollover. That would result in bad clock data. To prevent that, the DS1302 has a buffer to store the clock data. That buffer can be read in a single communication session, called a "burst" mode.
Any valid program should therefor use that "burst" mode to read the clock data.
The Year data of the DS1302 is only two digits (0-99). The Year '0' is 2000, and not 1970 or 1980. It has a Leap-Year compensation from 2000 up to 2099 (for a value of 0-99).
The DS1302 does not use Daylight Saving Time ( http://en.wikipedia.org/wiki/Daylight_saving_time ).
The chip has 31 bytes of ram. The data in this ram will get lost if the Arduino is off, and the battery (or supercap) gets empty.
To store data, the EEPROM section of the AVR chip (the microprocessor used in the Arduino) is a much better choice.
The standard date and time functions like: strftime(), timelocal(), getdate(), mktime() are not available for the Arduino environment. Arduino uses the AVR GCC compiler which has no such functions.
At this moment (2012) there is no official library for date and time functions for the Arduino.
The most used date and time functions for the Arduino : http://playground.arduino.cc/Code/time
For the name of a month, this page contains many languages: http://www.omniglot.com/language/time/months.htm
The code below contains basic interface functions for the DS1302. Use it with Arduino 1.0.3 or higher.
Code improvement:
By using a structure with bit fields, reading and writing the clock data is very simple.
The code below uses the European 24-hour format.
The size of the sketch is about 7k and will fit in a ATmega8.
Reference: 674
The MQ series of gas sensors use a small heater inside with an electrochemical sensor. They are sensitive to a range of gasses and are used indoors at room temperature. The output is an analog signal and can be read with an analog input of the Arduino.
Reference: 321
PT100 Platinum Resister Temperature Sensor Waterproof Probe -20℃ ~ 450℃
Reference: 368
TECHNICAL DETAILS Thickness: 0.4mm Trigger Force: 20g, triggered (default resistance<200kΩ) Pressure Measuring Range: 20g~6kg Static Pressure & Dynamic Pressure Measurement (within the frequency of 10Hz) Initial Resistance: >10MΩ Activation Time: <0.01S Operating Temperature: -40°C~+85°C Lifespan: >1million times Hysteresis: +10%,(RF+...
Reference: 1175
DESCRIPTION Sensor module for measuring current. Both AC and DC, up to 20A can be measured. The output is a linear voltage between 0 – VCC, centered around VCC/2 at 0A. The load is connected in series to the screw terminal. * Dimensions: 31 x 13mm* Supply voltage: 5V* Sensitivity: 185mV/A* Sensor: ACS712ELC-05B
Reference: 813
Liquid Suspended Particles Turbidity Sensor Detection Module Kit
Reference: 233
Brand: SparkFun Electronics
Description: This is the LSM9DS0, a versatile motion-sensing system-in-a-chip that houses a 3-axis accelerometer, 3-axis gyroscope, and 3-axis magnetometer. That’s right, 9 degrees of freedom (9dof) from a single IC!
Reference: 431
VOC gas sensors are used to detect formaldehyde, toluene, benzene, etc., is a type of semiconductor sensors, it is widely used in ventilation, ventilation fans, air filters, hood, hood and other equipment. With high sensitivity and stability, able to detect more than 0.1ppm gas, air suitable for detecting a variety of volatile organic components...
Reference: 423
5 Way Flame Sensor Module Digital Analog Output Fire extinguisher Robot Arduino
Reference: 169
Description: A simple flex sensor 2.2" in length. As the sensor is flexed, the resistance across the sensor increases. Patented technology by Spectra Symbol - they claim these sensors were used in the originalNintendo Power Glove. I love the Nintendo Power Glove. It’s so bad!
Reference: 1189
IR Receiver Diode (5mm) IR receiver diodes can be used in object detection applications like line follower,obstacle detecting robots etc.These were used in our IR Sensor Array.
Reference: 1018
Digital Electronic Weighing SensorScale 5Kg Weight Load Cell 3-12V DC
Reference: 1377
CJMCU-4541 MICS-4514 Carbon Monoxide Nitrogen Oxygen Sensor
Reference: 555
Product Description 1. Current sensor chip: ACS712ELC-30A. 2. Pin 5V power supply, on-board power light. 3. The module can be measured plus or minus 30A current, Corresponding analog output of 66 mV / A. 4. No test current through, the output voltage is VCC / 2. 5. PCB size: 31 (mm) x13 (mm).
Reference: 416
The TTP229 is capacitive sensing design specifically for touch pad controls. The device has a built in regulator for the touch sensor. Stable sensing method can cover diversity conditions. Interface control panel links through non-conductive dielectric material. The main application is focused at replacing of the mechanical switch or button.
Reference: 554
The VL53L0 uses ST’s FlightSense technology to precisely measure how long it takes for emitted pulses of infrared laser light to reach the nearest object and be reflected back to a detector, so it can be considered a tiny, self-contained lidar system. This time-of-flight (TOF) measurement enables it to accurately determine the absolute distance to a target
Reference: 493
0-400C PT100 Type 5mm x 50mm Temperature Controller Probe 2 Meters
Reference: 1249
This tiny, button-type, vibrating motor shakes with a vibration amplitude of 0.75g and draws approximately 60 mA when 3 V is applied to its leads. The shaftless design keeps this motor small Dimension: 10X3.0MM
Reference: 624
FM Transmitter Module Wireless Microphone Surveillance Frequency 88-108MHz
Reference: 622
RCWL-0516 Microwave Radar Sensor Module Human Body Induction Switch Module
Reference: 823
Optical Sensitive Resistance Light Detection Photosensitive LDR Sensor Module
Reference: 312
Arduino TTP229 16 Channel Digital Capacitive Switch Touch Sensor Module GM
Reference: 382
GY-87 10DOF MPU6050 HMC5883L BMP180 Sensor Module
Reference: 411
Type: Microwave SensorChip: HB100Frequency: 10.525GHzVoltage: DC 5V±0.25VCurrent: 40mASize: 38 x 45 x 7 mm (L x W x H)Application: Automatic door startup, Car, House intrusion alarm, Collision warningTraffic monitoringNote:Please pay attention to the Voltage/Current/Power of your own devices.To ensure product safety, check whether this item is compliant...
Reference: 1374
The DHT21 digital temperature sensor is one of the commonest from the range of DHT temperature sensors and boasts a relatively high-temperature measurement accuracy of 0.5oC in 0.1oC steps with a relative humidity accuracy of +/- 3%. It has only 3 wires, including power and ground, meaning only one digital pin is required to interface it to a...
Reference: 23
This is a simple to use motion sensor. Power it up and wait 1-2 seconds for the sensor to get a snapshot of the still room. If anything moves after that period, the 'alarm' pin will go low.
Reference: 1202
GY-273 HMC5883L Triple Axis Compass Magnetometer Sensor Module For Arduino 3V-5V This module is based on a popular and well-loved magnetometer, the HMC5883L. This compact sensor uses I2C to communicate and its very easy to use. Since it's a 3.3V max chip, we added circuitry to make it 5V-safe logic and power, for easy use with either 3 or 5V...
Reference: 1172
এই লাইট হোল্ডার টি মানুষের উপস্থিতি পেলে লাইটটিকে অটোমেটিক চালু করে দিবে। Infrared Sensor Automatic Lighting Control Switch with lamp holder; convenient, safe & practical. Good solution for energy saving. You can conveniently let the light auto on/off. The switch can detect the human body's infrared, and use infrared to control the load. Easy...
Reference: 924
4 Bits 0.36Inch Clock RED Anode Digital Tube Four Serial Driver Board Control Interface: A total of four pins (GND, VCC, DIO, CLK), GND to ground, VCC is the power supply, DIO of data input and output pin, CLK is the clock signal pin;
Reference: 133
Solderless Large Breadboard 830-Point Solderless Breadboard 6.5" x 2.125" A breadboard (or protoboard) is usually a construction base for prototyping of electronics. The term "breadboard" is commonly used to refer to a solderless breadboard (plugboard). Because the solderless breadboard for electronics does not require soldering, it is reusable. This...
Reference: 20
Getting an original TowerPro Servo Motor is not an economical option at all!!! And is also a very difficult task to recognize and buy an original TowerPro servo, Because there are many suppliers spread over different online shops who are selling fake servo motors under this Brand name. We have imported this copy of the original TowerPro SG90 9g Mini...
Reference: 494
Actiontec Original 12V Power AdapterModel#: STD-12020U1Output: 12V 2.0AInput: 120VAC,50/60 Hz,0.8ACompatible with: Arduino, CCTV, Wireless Router, DSL and Cable Modem, ONU, Media Converter, DVR, NVR
Reference: 1045
WS2812 5050 RGB LED Compatible with Neopixel & Neopixel Library Comes with one-quarter ring of 15 x individually addressable RGB LEDs assembled and tested. We recommend you buy four to build the full circle as this is just the 1/4 of the circle. You need to buy 4 pcs to complete the full circle led.
Reference: 345
ESP8266 is a wifi SOC (system on a chip) produced by Espressif Systems. It is an highly integrated chip designed to provide full internet connectivity in a small package. This is a module based on ESP8266 chip. Please see supplied pinout photo and schematics for connectivity details. There is a lot of online resources available for this module.
Reference: 389
PL2303 USB to TTL Converter Windows 7 & 10 Compatible