Yuichi Tateno
/
Max7219_7segled_example
Max7219 7segled example
Diff: main.cpp
- Revision:
- 0:d50f30be8280
diff -r 000000000000 -r d50f30be8280 main.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/main.cpp Sat Sep 24 08:22:08 2016 +0000 @@ -0,0 +1,19 @@ +#include "mbed.h" +#include "Max7219.hpp" + +int main() { + SPI spi(D11 /* MOSI */, NC, D13 /* SCK */); + MAX7219 max7219(spi, D10 /* CS */); + max7219.begin(); + max7219.print("-1234.567"); + + wait(5); + double counter = 0.0f; + char num_str[10]; + + while(1) { + counter += 0.01; + sprintf(num_str, "%9.2f", counter); + max7219.print(num_str); + } +}