LDS-A3913RI

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LDS-A3913RI is a dot matrix LED display product produced by Liteon. It is a standard size product with the character box size 14.2 mm (height) * 10.0 mm ( width). It is a preferred choice for applications such as level indicators, wireless communication equipment, status boards, industrial instruments and digital clocks. The main application field is display devices that require high brightness and clear visibility. LDS-A3913RI also uses an 89.3 mm lens to enhance the viewing angle and brightness. Most important of all, it can be connected to an external controller for resolution extension.

The LDS-A3913RI is a module with 3 digits. Each digit is composed of a 5x7 dot matrix module which is composed of 35 LEDs in total. These modules are connected in series and are driven by a dedicated microprocessor. The control circuit of this module has a standard 8-bit interface with a variety of addressing solutions available. The typical communication interface is a parallel synchronization bus, allowing multiple LDS-A3913RI modules to be connected together in a daisy-chain configuration. The output of each individual 5x7 dot matrix module can be controlled by the programming commands and all the dots can be turned on or off simultaneously.

The working principle of the LDS-A3913RI is based on the grid control, which requires the data to be sent to each unit which will then show the corresponding output. The control scheme of the LDS-A3913RI module is composed of five main components: the central control unit, the LED display unit, the external microprocessor, the serial interface and the power supply. The central control unit receives the data from the external microprocessor and organizes it into several frame units. It is then passed on to the LED display unit, which is responsible for displaying the data on the display. The LED display units contain an array of LEDs in a 5x7 grid pattern. Each LED is independently controllable and can be turned on or off in order to produce the desired display. The LED display is also connected to an external serial interface, which is used to communicate with the microprocessor. The LDS-A3913RI module is powered by an external power source, usually a 9V battery.

In summary, the LDS-A3913RI is a three-digit, 5x7 dot matrix LED display module designed for displaying information. It is designed to be connected to an external controller for resolution extension and provides a standard 8-bit interface with a variety of addressing solutions available. The control scheme of this module is based on grid control and requires data to be sent to each unit which will then show the corresponding output. The display is bright and highly visible and has an 89.3 mm lens to enhance the viewing angle. This module is ideal for applications such as level indicators, wireless communication equipment, status boards, industrial instruments and digital clocks.

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