7 Segment Led Display (Common Cathode) 7 Segment Led Display (Common Cathode), is a form of an electronic display device for displaying decimal numerals that is an alternative to the more complex dot matrix displays. In a common cathode display, all of the LED segment cathode connections are connected to logic "0" or ground. Individual segments are illuminated by applying a "HIGH" or logic "1" signal to the individual Anode terminals via a current limiting resistor (a-g). Read more: Implementation of 7 segment LED display Controller on FPGA Seven-segment displays or ( 7 segment displays) are widely used in digital clocks, electronic meters, basic calculators, and other electronic devices that display numerical information. If you want to use a 7 Segment Led Display in your Arduino project, then you will need a few components like breadboard , jumper wires , resistors , capacitors and transistors. Iotcart offers at best Common Cathode 7 segment display price in India. Don't settle for anything less than the best— Buy Common Cathode 7 Segment Display now for your next project from Iotcart.  Common Cathode Configuration  Common Cathode 7 Segment Display Truth Table In a common cathode 7 segment display, all the cathodes of the LEDs are linked together. Each LED is accompanied by a current-limiting resistor connected between it and the +VCC. In this configuration, to activate a specific LED, it is connected to +5V. Thus, by connecting inputs a to g to VCC, digits ranging from 0 to 9 can be displayed. For instance, to display the digit 3, LEDs a, b, c, d, and g will emit light, while the remaining LEDs will remain inactive. Consequently, the illuminated LEDs will take the form of the digit 3. Common Cathode 7 Segment Display Pinout:

TM1637 4-Digit Display + IR Proximity Sensor The TM1637 4 digit LED Display Module is a low-cost solution for displaying Arduino project output data. Though the data displayed is limited to numbers, users can also display characters such as A, B, C, and so on. The TM1637 Driver Chip controls the 4 digits on this 7 segment LED display. This TM1637 4 Bits Digital Tube LED Display Module can be controlled with just two wires. IR Proximity Sensor The IR Proximity Sensor module has great adaptive capability of the ambient light, having a pair of infrared transmitter and the receiver tube, the infrared emitting tube to emit a certain frequency, encounters an obstacle detection direction (reflecting surface), infrared reflected back to the receiver tube receiving, after a comparator circuit processing, the green LED lights up, while the signal output will output digital signal (a low-level signal), through the potentiometer knob to adjust the detection distance, the effective distance range 2 ~ 30cm working voltage of 3.3V-5V. Pinout of TM1637 4-Digit Display: 1 CLK Clock Input Pin 2 DIO Data Input/Output Pin 3 VCC 3.3V to 5V power supply Pin 4 GND Ground Pin Package Includes: 1 x TM1637 4-Digit Display 1 x IR Proximity Sensor Specifications Chip  I2C 7-bit Dimensions 27mm x 50mm x 4mm Weight  5.3g Sensor Distance Sensing 2-40 cm Sensor Voltage  3V to 6V

7 Segment Led Display (Common Anode) 7 Segment Led Display (Common Anode), is a form of an electronic display device for displaying decimal numerals that is an alternative to the more complex dot matrix displays. The Common Anode (CA) - In the common anode display, all of the LED segment anode connections are connected to logic "1." Individual segments are illuminated by applying a ground, logic "0" or "LOW" signal to the Cathode of the specific segment via a suitable current limiting resistor (a-g). Common anode displays are more popular in general because many logic circuits can sink more current than they can source. Also, a common cathode display is not a direct replacement in a circuit for a common anode display, and vice versa, because it is equivalent to connecting the LEDs in reverse, and thus no light emission occurs. The specific set of LEDs is forward biased depending on the decimal digit to be displayed. Seven-segment displays or ( 7 segment displays) are widely used in digital clocks, electronic meters, basic calculators, and other electronic devices that display numerical information. If you want to use 7 Segment Led Display in your Arduino project, then you will need a few components like breadboard , jumper wires , resistors , capacitors and transistors. Package Includes: 1 x 7 Segment Led Display (Common Anode) Specifications: Device type Seven Segment Display Display type LED Display Pin number 10 Pin type DIP Dimension 19mm x 12mm x 7mm Weight  5 grams

Key Display For AVR Arduino The TM1638 Button Digital LED Display Module is used in chip TM1638, a collection of these three common MCU peripheral circuit, the biggest feature just takes three microcontroller like Arduino IO port to drive, do not need to scan display and key scanning microcontroller intervention, only need to read the relevant register send display data or test button, save MCU resources. This module gathers more than three common scm peripheral circuits. The advantage is only three io ports will be occupied when it drives. Scm doesn't need to work for scanning display and key scanning. It only need to read the relevant register to send display data or test button so it save MCU resources effectively. Keys are sensitive and display effectively.