Lc.setDigit(0,2,3, false) // To show the 5 on 2nd Lc.setDigit(0,5,4, false) // To display a 4 column 5 Lc.setDigit(0,6,5, true) // To display a 5 column 6 and decimal point Lc.setDigit(0,7,2, false) // To display the 2 first column on the left (column 7) Lc.clearDisplay(0) // To Clear the display register Lc.setIntensity(0,15) // To set the brightness level (0 is min, 15 is max) Lc.shutdown(0,false) // To Enable the Display Serial.write("14CORE TEST CODE FOR LED MAX7219 LED TUBE") The module compatible of 5V / 3.3V microcontroller (51 / AVR / STM3) and Raspberry Pi Only need three IO ports can drive 8 bit digital tube The entire module device includes a 150μA low power shut off mode, analog and digital brightness control, scan limit register allows you to display 1-8 bit data, and LED light detection mode. Each on-chip data can be addressed in the update without rewriting all display, and also allows you to select each data encoding or no-coding. The MAX7219 has integrates a convenient four wire serial interface that can be used to all micro-controller, microprocessor. This chip is only one external register can be used to set the current of each LED segment. Includes an on chip type B BCD encoder a multi-channel scanning loop, segment WORD driver, and also an 8×8 static RAM that stores each data. This module you also place the LED Graph display LED or 64 separated LED. The MAX7219 is an integrated serial input output common-cathode display driver which is connected to microprocessor or microcontroller along with the 8 bit 7 segment digital LED display. Yet another illustration guide, how to wire the MAX7219 on 8 Bit 7 Segment Digital LED Display driven by MAX7219.
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