Steve B
An analog clock for LPC1768 or LPC1114 with Sharp Memory LCD and DS1307
Dependencies: Adafruit_SHARP_Memory_Display RTC-DS1307 mbed
Analog Clock
This is a small example of an analog clock based on a TinyRTC (DS1307) for LPC1768 and LPC1114. The clock is displayed on a small (96x96) Sharp Memory LCD.
http://www.adafruit.com/products/1393
The TinyRTC is something like that (a simple DS1307 with some capacitors and a crystal does the job too):
http://www.amazon.com/SainSmart-DS1307-AT24C32-memory-Arduino/dp/B00E37VTWY
The RTC-lib created by Henry Leinen is used and the algorithm for calculation the clock-hands is based on input from http://arduino-project.net.
Revision 0:202fb7a03a00, committed 2015-12-06
- Comitter:
- worstcase_ffm
- Date:
- Sun Dec 06 15:28:18 2015 +0000
- Commit message:
- initial version
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/LS013B4DN04.lib Sun Dec 06 15:28:18 2015 +0000 @@ -0,0 +1,1 @@ +http://developer.mbed.org/users/marcpl/code/Adafruit_SHARP_Memory_Display/#99cc0e72e165
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/RTC-DS1307.lib Sun Dec 06 15:28:18 2015 +0000 @@ -0,0 +1,1 @@ +https://mbed.org/users/leihen/code/RTC-DS1307/#5627b407e097
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/debug.h Sun Dec 06 15:28:18 2015 +0000
@@ -0,0 +1,16 @@
+#ifndef __DEBUG_H__
+#define __DEBUG_H__
+
+
+#ifdef DEBUG
+#define INFO(x, ...) std::printf("[INFO: %s:%d]"x"\r\n", __FILE__, __LINE__, ##__VA_ARGS__);
+#define WARN(x, ...) std::printf("[WARN: %s:%d]"x"\r\n", __FILE__, __LINE__, ##__VA_ARGS__);
+#define ERR(x, ...) std::printf("[ERR: %s:%d]"x"\r\n", __FILE__, __LINE__, ##__VA_ARGS__);
+#else
+#define INFO(x, ...)
+#define WARN(x, ...)
+#define ERR(x, ...)
+#endif
+
+
+#endif
\ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Sun Dec 06 15:28:18 2015 +0000
@@ -0,0 +1,158 @@
+/*
+ * Project: Analog Clock - Display an analog clock with NXP LPC1768 or LPC1114
+ * File: main.cpp
+ * Author: Steve Baumann
+ * Created: December, 2015
+ * Revised:
+ * Description:
+ * --------------
+ * The time read from tinyRTC (DS1307) will be displayed on a 96x96 Sharp Memory LCD
+ * LS013B4DN04 (bought from Adafruit http://www.adafruit.com/products/1393).
+ * The RTC-lib created by Henry Leinen is used and the algorithm for calculation the
+ * clock-hands is based on input from http://arduino-project.net
+ * The RTC itself was bought via Amazon http://www.amazon.de/gp/product/B00CWX6UXY/
+ */
+
+#include <algorithm>
+#include "mbed.h"
+#include "Adafruit_SharpMem.h"
+#include "Rtc_Ds1307.h"
+
+#ifdef TARGET_LPC176X
+// Display LS013B4DN04
+#define ENABLE p15 // DISP
+#define CS p8 // CS
+#define MOSI p5 // DI
+#define MISO p6 // not used (no wiring necessary)
+#define SCLK p7 // CLK
+// RTC 1307
+#define SDA p28 // SDA for RTC
+#define SCL p27 // SCL for RTC
+#endif
+
+#ifdef TARGET_LPC11XX
+// Display LS013B4DN04
+#define ENABLE dp9 // DISP
+#define CS dp10 // CS
+#define MOSI dp2 // DI
+#define MISO dp1 // not used (no wiring necessary)
+#define SCLK dp6 // CLK
+// RTC 1307
+#define SDA dp5 // SDA for RTC
+#define SCL dp27 // SCL for RTC
+#endif
+
+Rtc_Ds1307 rtc(SDA, SCL);
+Adafruit_SharpMem display(ENABLE, CS, MOSI, MISO, SCLK);
+
+void drawClockMark(int hour)
+{
+ float x1, y1, x2, y2;
+
+ hour = hour*30;
+ hour = hour+270;
+
+ x1 = 48*cos(hour*0.0175);
+ y1 = 48*sin(hour*0.0175);
+ x2 = 43*cos(hour*0.0175);
+ y2 = 43*sin(hour*0.0175);
+
+ display.drawLine(x1+48, y1+48, x2+48, y2+48, BLACK);
+}
+
+void drawClock()
+{
+ // Values for radius and positioning of labels need to be adapt for other displays
+ display.setTextSize(1);
+ display.setTextColor(BLACK);
+
+ display.drawCircle(display.width()/2, display.height()/2, 48, BLACK);
+ display.setCursor(88,44);
+ display.printf("3");
+ display.setCursor(46,88);
+ display.printf("6");
+ display.setCursor(3,44);
+ display.printf("9");
+ display.setCursor(43,3);
+ display.printf("12");
+
+ for (int i=0; i<12; i++)
+ {
+ if((i%3) != 0) drawClockMark(i);
+ }
+}
+
+void drawSecond(int s)
+{
+ float x1, y1, x2, y2;
+
+ s = s*6;
+ s = s+270;
+
+ x1 = 45*cos(s*0.0175);
+ y1 = 45*sin(s*0.0175);
+ x2 = 4*cos(s*0.0175);
+ y2 = 4*sin(s*0.0175);
+
+ display.drawLine(x1+48, y1+48, x2+48, y2+48, BLACK);
+}
+
+void drawMinute(int m)
+{
+ float x1, y1, x2, y2;
+
+ m = m*6;
+ m = m+270;
+
+ x1 = 45*cos(m*0.0175);
+ y1 = 45*sin(m*0.0175);
+ x2 = 4*cos(m*0.0175);
+ y2 = 4*sin(m*0.0175);
+
+ display.drawLine(x1+48, y1+48, x2+48, y2+48, BLACK);
+}
+
+void drawHour(int h, int m)
+{
+ float x1, y1, x2, y2;
+
+ h = (h*30)+(m/2);
+ h = h+270;
+
+ x1 = 30*cos(h*0.0175);
+ y1 = 30*sin(h*0.0175);
+ x2 = 4*cos(h*0.0175);
+ y2 = 4*sin(h*0.0175);
+
+ display.drawLine(x1+48, y1+48, x2+48, y2+48, BLACK);
+}
+
+int main()
+{
+ Rtc_Ds1307::Time_rtc tm = {};
+
+ // start & clear the display
+ display.begin();
+ display.setRotation(0);
+ display.enableDisplay();
+ display.clearDisplay();
+
+ while(1) {
+
+ drawClock();
+
+ if (rtc.getTime(tm)) {
+ drawSecond(tm.sec);
+ drawMinute(tm.min);
+ drawHour(tm.hour, tm.min);
+ display.refresh();
+ } else {
+ tm.date = 6; tm.mon = 12; tm.year = 2015;
+ tm.hour = 13; tm.min = 50; tm.sec = 0;
+ rtc.setTime(tm, false, false);
+ rtc.startClock();
+ }
+ wait(0.5);
+ display.clearDisplay();
+ }
+}
\ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Sun Dec 06 15:28:18 2015 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/7cff1c4259d7 \ No newline at end of file