The number of segments commonly used for led segment displays is generally 7 segments, some plus a decimal point, and the other is similar to the 3-digit '+1' type. The leads have been connected internally, and they only need to draw out their individual strokes and common electrodes. LED Segment Displays is an '8'-shaped device encapsulated by multiple light-emitting diodes. When the anode of a certain field of light-emitting diodes is high, the corresponding field is lit, and when the anode of a field is low, the corresponding field is not lit. The common cathode seven-segment display should be connected to the ground line GND when the common cathode seven-segment display is used. Common cathode seven-segment display refers to the seven-segment display that connects the cathodes of all light-emitting diodes to form a common cathode (COM). The matching field is lit when the cathode of a field of light-emitting diodes is at a low level, and it is not lit when the cathode of a field is at a high level. The common anode seven-segment display should be connected to +5V when the common anode is used. The common anode seven-segment display refers to the seven-segment display that connects the anodes of all light-emitting diodes to form a common anode (COM).

Seven-segment displays Classification of seven-segment displayĪccording to the connection mode of the light-emitting diode unit, it can be divided into a common anode seven-segment display and a common cathode seven-segment display.Ĭommon anode and common cathode seven-segment display Most water heaters use digital tubes, and other home appliances also use LCD screens and fluorescent screens. It is widely used in electrical appliances, especially home appliances, such as display screens, air conditioners, water heaters, refrigerators, and so on.

By inputting relative current to its different pins to make it light up, it can show that the numbers can display all the parameters that can be represented by numbers, such as time, date, temperature, and so on. A seven-segment display or 7-seg display is a kind of semiconductor light-emitting device that is cheap and easy to use.

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