APPLICATION: LED Matrix Displays; Panel Meters;Industrial Controllers;7-Segment Displays;Bar-Graph displays
Material: PCB + Electronic Components
MAX7219 is an integrated serial input / output common-cathode display driver, which connects your microprocessor to a 7-segment digital LED display with 8 digits
it is compatible of 5V / 3.3V microcontroller; Only three IO ports are used to drive the eight digit display
Note: VCC and GND do not reversed, it would burn the chip; 51 MCU P0 port requires pull-up resistor, if your device does not have a pull-up resistor can be connected to other ports data lines.
Description:
1: MAX7219 is an integrated serial input / output common-cathode display drivers, which connects the microprocessor 7-segment digital LED display with 8 digits, you can also connect a bar graph displays or 64 independent LED. On which includes a B-type BCD encoder chip, multi-channel scanning loop, segment the word drive, but also an 8 * 8 static RAM for storing each data. Only one external register is used to set the segment current of each LED.
2: 0.36″ 4 digit led display 7 seg segment Common cathode Red
3: The module is compatible of 5V / 3.3V microcontroller; Only three IO ports are used to drive the eight digit display.
4:The devices include a 150µA low-power shutdown mode, analog and digital brightness control, a scan-limit register that allows the user to display from 1 to 8 digits, and a test mode that forces all LEDs on
5: Only three IO ports are used to drive the eight digit display. MAX7219 supports flicker free displays as well as cascading displays; PCV board four corners of the fixed copper stud, which can effectively precent short circuit accidents happen
Connection:
VCC→5V
GND→GND
DIN →P00
CS →P01
CLK→P02
Note: VCC and GND can not be reversed, otherwise it would burn the chip.
Package Including:
1 * MAX7219 7-Segment LED matrix
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