Kenji Arai
Data logger: Sensors -> Barometer & temperature (BMP180), Humidity & temp. (RHT03), Sunshine (Cds): Display -> 20 chracters x 4 lines: Strage -> EEPROM (AT24C1024): Special functions -> Enter sleep mode to save current, reading the logging data via serial line
Dependencies: AT24C1024 BMP180 M41T62 RHT03 TextLCD WakeUp mbed
Fork of
LPC1114_barometer_with_data_logging
by 
Kenji Arai
Please refer following Notebook.
http://mbed.org/users/kenjiArai/notebook/mbed-lpc1114fn28-data-logger/
Diff: main.cpp
- Revision:
- 16:f164f8912201
- Parent:
- 15:065fbeddc305
- Child:
- 18:2a1d75bc8ebc
--- a/main.cpp Sun Jun 29 06:58:00 2014 +0000
+++ b/main.cpp Thu Jul 03 22:01:25 2014 +0000
@@ -6,7 +6,7 @@
* http://www.page.sannet.ne.jp/kenjia/index.html
* http://mbed.org/users/kenjiArai/
* Created: May 21st, 2014
- * Revised: June 28th, 2014
+ * Revised: July 3rd, 2014
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
* INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE
@@ -29,25 +29,26 @@
#include "dt_log.h"
// Definition ------------------------------------------------------------------------------------
-#define USE_MON 1
-#define USE_BARO 0
+#define USE_MON 1
+#define USE_BARO 0
-#define BOUND 5 // chattering
+#define BOUND 5 // chattering
// Define cyclic period
-#define SHOW_LED 1 // Time for LED on x mS
-#define CNV_WAIT_T 25 // Waiting time for temp. conversion
-#define CNV_WAIT_P 50 // Waiting time for pressure conversion
-#define LOOP_WAIT (1000 - (SHOW_LED + CNV_WAIT_T +CNV_WAIT_P))
+#define SHOW_LED 1 // Time for LED on x mS
+#define CNV_WAIT_T 25 // Waiting time for temp. conversion
+#define CNV_WAIT_P 50 // Waiting time for pressure conversion
+#define LOOP_WAIT (1000 - (SHOW_LED + CNV_WAIT_T +CNV_WAIT_P))
// ADC related definition
-#define VREF_VOLT 2.482 // TA76431F Vref real measued data
-#define R_FIX 9930 // 10K ohm <- real measued data
-#define VOL_OFFSET 3 // Offset data ,= real measured data
-#define CDS_TBL_SIZE 13
+#define VREF_VOLT 2.482 // TA76431F Vref real measued data
+#define R_FIX 9930 // 10K ohm <- real measued data
+#define VOL_OFFSET 3 // Offset data ,= real measured data
+#define CDS_TBL_SIZE 13
// Waiting time
#define STATE_CHANGE_TIME 3
+#define TIME_INTERVAL 600 // 10 minutes
typedef enum {CDS = 0, VREF, VOL} ADC_Select;
@@ -90,7 +91,7 @@
float baro_temp;
// EEPROM
-extern xEeprom_ptr log_inf;
+//extern xEeprom_ptr log_inf;
// ROM / Constant data ---------------------------------------------------------------------------
// Cds GL5528 (Dark Resistance 1 Mohm type) SENBA OPTICAL & ELECTRONIC CO.,LTD.
@@ -112,12 +113,17 @@
DSP_INIT=0, DSP_BARO, DSP_HUMD, DSP_LUX, DSP_TIME, DSP_LOG, DSP_RTURN
};
+// loop time = STATE_CHANGE_TIME * 20 = 3 * 20 = 60 sec (current)
// rule 1) DSP_INIT is top position, 2)DSP_RTURN is end position, 3) Total number 20
const uint8_t lcd_disp_tbl[20]
-// 1, 2, 3, 4, 5, 6, 7, 8, 9, 10,
- = {DSP_INIT, DSP_BARO, DSP_BARO, DSP_BARO, DSP_TIME, DSP_TIME, DSP_HUMD, DSP_HUMD, DSP_LUX, DSP_LUX,
-// 11, 12, 13, 14, 15, 16, 17, 18, 19, 20
- DSP_BARO, DSP_BARO, DSP_TIME, DSP_TIME, DSP_HUMD, DSP_HUMD, DSP_LUX, DSP_LUX, DSP_LOG, DSP_RTURN};
+// 1, 2, 3, 4, 5,
+ = {DSP_INIT, DSP_BARO, DSP_BARO, DSP_BARO, DSP_TIME,
+// 6, 7, 8, 9, 10,
+ DSP_TIME, DSP_HUMD, DSP_HUMD, DSP_LUX, DSP_LUX,
+// 11, 12, 13, 14, 15,
+ DSP_BARO, DSP_BARO, DSP_TIME, DSP_TIME, DSP_HUMD,
+// 16, 17, 18, 19, 20
+ DSP_HUMD, DSP_LUX, DSP_LUX, DSP_LOG, DSP_RTURN};
//-------------------------------------------------------------------------------------------------
// Control Program
@@ -203,8 +209,10 @@
// Measure pressure and show it on LCD
void conv_and_disp(void) {
tm t;
-uint32_t step = 0;
-uint8_t num;
+time_t seconds = 0;
+time_t old_seconds = 0;
+uint32_t step = 0, dt;
+uint8_t num;
while (true) { // infinit loop for measure and display
// Call wakeup()function after specific time
@@ -220,7 +228,9 @@
humidity_temp = 0;
humidity = 0;
// RTC
- m41t62.set_sq_wave(RTC_SQW_NONE);
+ m41t62.set_sq_wave(RTC_SQW_NONE);
+ m41t62.read_rtc_std(&t);
+ old_seconds = mktime(&t);
break;
// ---------- Cds Sensor, Vref, Volume -------------------------------------------------------
case DSP_LUX:
@@ -264,7 +274,8 @@
break;
// ---------- RTC ----------------------------------------------------------------------------
case DSP_TIME:
- m41t62.read_rtc_std(&t);;
+ m41t62.read_rtc_std(&t);
+ seconds = mktime(&t);
set_lcd_screen(SCRN_Clear);
i2clcd.locate(0, 0); // 1st line top
i2clcd.printf("%02d/%02d/%02d", t.tm_year % 100, t.tm_mon + 1, t.tm_mday);
@@ -273,13 +284,19 @@
break;
// ---------- EEPROM Logging -----------------------------------------------------------------
case DSP_LOG:
- dtlog_data_pack(); // Get EEPROM resource
- dtlog_one_write(); // Write data to EEPROM
+ if (seconds >= old_seconds + TIME_INTERVAL){
+ // Data Logging action
+ old_seconds += TIME_INTERVAL;
+ dtlog_data_pack(); // Get EEPROM resource
+ dtlog_one_write(); // Write data to EEPROM
+ dt = (uint32_t)dtlog_buf_occupation();
+ dt = (dt * 1000)/ BLK_NO;
+ }
set_lcd_screen(SCRN_Clear);
i2clcd.locate(0, 0); // 1st line top
i2clcd.printf("Logging");
i2clcd.locate(0, 1); // 2nd line top
- i2clcd.printf("%d.1", dtlog_buf_occupation() / 10);
+ i2clcd.printf("%d.%01d%%", dt / 10, dt % 10);
break;
// ---------- return (loop) ------------------------------------------------------------------
case DSP_RTURN: