Shields
Example program for the Seeed Grove shield, that uses Digit Display Grove on UART connector (D0/D1 pins). This program displays/measures time.
Dependencies: DigitDisplay mbed
Fork of
DigitDisplay_Clock
by 
Seeed Studio
Revision 0:20e070e8ecca, committed 2014-02-08
- Comitter:
- seeed
- Date:
- Sat Feb 08 05:56:25 2014 +0000
- Child:
- 1:50a737d41539
- Commit message:
- initial
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/DigitDisplay.lib Sat Feb 08 05:56:25 2014 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/seeed/code/DigitDisplay/#d3173c8bfd48
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Sat Feb 08 05:56:25 2014 +0000
@@ -0,0 +1,54 @@
+#include "mbed.h"
+#include "DigitDisplay.h"
+
+DigitalOut myled(LED1);
+
+DigitDisplay display(P1_14, P1_13);
+
+Ticker tick;
+
+uint8_t hour = 20;
+uint8_t minute = 14;
+uint8_t second = 0;
+
+void beat()
+{
+ static uint8_t colon = 0;
+
+ display.setColon(colon);
+ if (colon) {
+ second++;
+ if (second >= 60) {
+ second = 0;
+ minute++;
+ if (minute >= 60) {
+ minute = 0;
+
+ hour++;
+ if (hour >= 24) {
+ hour = 0;
+ }
+ display.write(0, hour / 10);
+ display.write(1, hour % 10);
+ }
+ display.write(2, minute / 10);
+ display.write(3, minute % 10);
+ }
+ }
+ colon = 1 - colon;
+}
+
+int main() {
+ display.write(0, hour / 10);
+ display.write(1, hour % 10);
+ display.write(2, minute / 10);
+ display.write(3, minute % 10);
+ display.setColon(true);
+ tick.attach(&beat, 0.5);
+ while(1) {
+ myled = 1;
+ wait(0.5);
+ myled = 0;
+ wait(0.5);
+ }
+}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Sat Feb 08 05:56:25 2014 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/a9913a65894f \ No newline at end of file