Seven segment display
How can we connect 2 seven segment display with arduino? What will be configuration?
Arduino AVR-GCC-programming-through-Arduino 04-05 min 0-10 sec
Answers:
We can use arduino pins from 0 to 6 for one seven segment display and arduino pins 7 to 13 for another seven segment display.
Hi...the arduino can multiplex as shown, driving 20mA to the parallel
segments, and pulling the common cathode low on the active device.
Several folks here recently have done just that.Only drawback is that it uses 11 pins.
MAX7219/7221 will letyou control up to displays, handles all the multiplexing, updating is as simple as writing a value to 1 of 8 registers.
Several folks here recently have done just that.Only drawback is that it uses 11 pins.
MAX7219/7221 will letyou control up to displays, handles all the multiplexing, updating is as simple as writing a value to 1 of 8 registers.
