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/
Revision 14:18a98cad6109, committed 2014-06-22
- Comitter:
- kenjiArai
- Date:
- Sun Jun 22 06:10:57 2014 +0000
- Parent:
- 13:950adc9d6d61
- Child:
- 15:065fbeddc305
- Commit message:
- Barometer program / Step by step approach -> 8th step,; Check each function on I2C devices, EEPROM, LCD, RTC and BMP180
Changed in this revision
--- a/AT24C1024.lib Sun Jun 22 01:48:32 2014 +0000 +++ b/AT24C1024.lib Sun Jun 22 06:10:57 2014 +0000 @@ -1,1 +1,1 @@ -AT24C1024#f5809bb0d965 +AT24C1024#b9f5cf0309af
--- a/BMP180.lib Sun Jun 22 01:48:32 2014 +0000 +++ b/BMP180.lib Sun Jun 22 06:10:57 2014 +0000 @@ -1,1 +1,1 @@ -BMP180#23942d7b7023 +BMP180#b81e7659be7a
--- a/M41T62.lib Sun Jun 22 01:48:32 2014 +0000 +++ b/M41T62.lib Sun Jun 22 06:10:57 2014 +0000 @@ -1,1 +1,1 @@ -M41T62#9d7702a887d3 +M41T62#c58da9ec9ae3
--- a/main.cpp Sun Jun 22 01:48:32 2014 +0000
+++ b/main.cpp Sun Jun 22 06:10:57 2014 +0000
@@ -1,11 +1,11 @@
/*
* mbed Application program for the mbed LPC1114FN28
- * Test program -> Check RTC module
+ * Test program -> Check I2C line control
*
* Copyright (c) 2014 Kenji Arai / JH1PJL
* http://www.page.sannet.ne.jp/kenjia/index.html
* http://mbed.org/users/kenjiArai/
- * Created: June 13th, 2014
+ * Created: June 22nd, 2014
* Revised: June 22nd, 2014
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
@@ -14,285 +14,30 @@
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
-
-#include "mbed.h"
-#include "BMP180.h" // Own lib. / Pressure sensor
-#include "RHT03.h" // Std. lib./ Humidity sensor
-#include "TextLCD.h" // Std. lib./ LCD control
-#include "AT24C1024.h" // Own lib. / EEPROM control
-#include "m41t62_rtc.h" // Own lib. / RTC control
-
-#define USE_C_STD_LIB 1
-
-#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
-
-I2C i2c(dp5,dp27); // SDA, SCL
-DigitalOut myled0(dp28); // LED for Debug
-DigitalOut myled1(dp14); // Indicate state transition
-DigitalOut analog_pwr(dp6); // VCC for analog interface (vol, cds and vref)
-DigitalOut vref_pwr(dp4); // VCC for Vref
-DigitalIn sw_chng(dp1,PullUp);// SW for select
-DigitalIn sw_mode(dp2,PullUp);// SW for Mode change
-AnalogIn cds(dp11); // Input / CDS data
-AnalogIn vref(dp9); // Input / Bandgap 2.5V
-AnalogIn vol(dp10); // Input / contrast volume
-RHT03 humtemp(dp26); // RHT03 interface
-Serial pc(dp16,dp15); // UART (vertual COM)
-BMP180 bmp180(i2c); // Bosch sensor
-TextLCD_I2C_N i2clcd(&i2c, 0x7c, TextLCD::LCD8x2); // LCD(Akizuki AQM0802A)
-AT24C1024 at24c1024(i2c); // Atmel 1Mbit EE-PROM
-M41T62 m41t62(i2c); // STmicro RTC(M41T62)
-
-typedef enum {CDS = 0, VREF, VOL} ADC_Select;
-
-// ADC
-float av_cds, av_vref, av_vol, cal_vcc;
-float r_cds, lux;
-uint32_t nor_vol;
-
-// Humidity Sensor
-float humidity_temp, humidity;
-
-// EEPROM
-uint8_t eep_buf[256 + 2];
-
-// Cds GL5528 (Dark Resistance 1 Mohm type) SENBA OPTICAL & ELECTRONIC CO.,LTD.
-// Table value referrence: http://homepage3.nifty.com/skomo/f35/hp35_20.htm
-const float lux_cds[CDS_TBL_SIZE][2] =
- {{50,21194},{100,8356},{200,3294},{400,1299},{800,512},{1600,202},{3200,79.6},{6400,31.4},
- {12800,12.4},{25600,4.88},{51200,1.92},{102400,0.758},{409600,0.118}};
-
-#if USE_C_STD_LIB == 0
-const char week[7][4] = { "Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"};
-#endif
-
-//-------------------------------------------------------------------------------------------------
-// Control Program
-//-------------------------------------------------------------------------------------------------
-// Normalize ADC data
-void adc_normalize (ADC_Select n){
-int i;
-float x1,y1,dx;
+// You need to select (set 1) only one from blow
+#define TST_NORMAL 1
+#define TST_LCD8x2 0
+#define TST_EEPROM 0
+#define TST_BMP180 0
+#define TST_M41T62 0
+// You need to select (set 1) only one from above
- switch (n){
- case CDS:
- // v_adc = Rfix / (Rcds + Rfix) -> Rcds = ( Rfix / v_adc ) - Rfix
- r_cds = (R_FIX / av_cds) - R_FIX;
- // CDS resistance to Lux conversion using convertion table (luc_cds[][])
- for (i =0; i < CDS_TBL_SIZE; i++){ // search table
- if ( r_cds <= lux_cds[i][0]){ break; }
- }
- // Check table position
- if (i == 0){
- lux = lux_cds[0][1];
- break;
- } else if ( i == CDS_TBL_SIZE ){
- if ( r_cds <= lux_cds[i][0] ){
- lux = lux_cds[i-1][1];
- break;
- }
- }
- // Linear interpolation
- y1 = lux_cds[i-1][1] - lux_cds[i][1];
- x1 = lux_cds[i][0] - lux_cds[i-1][0];
- dx = r_cds - lux_cds[i-1][0];
- lux = lux_cds[i-1][1] - ((dx/x1) * y1);
- break;
- case VREF:
- // vref = VREF_VOLT / VCC -> VCC = VREF_VOLT / vref
- cal_vcc = VREF_VOLT / vref;
- break;
- case VOL:
- // Vol center = 1.00 (actual 100)
- nor_vol = (uint32_t)(av_vol * 200) + VOL_OFFSET;
- break;
- }
-}
-
-// Read adc data and averaging
-void adc_all_read (void){
- if (av_cds == 0){ av_cds = cds.read();
- } else { av_cds = av_cds *0.5 + cds.read() * 0.5;
- }
- if (av_vref == 0){ av_vref = vref.read();
- } else { av_vref = av_vref *0.9 + vref.read() * 0.1;
- }
- if (av_vol == 0){ av_vol = vol.read();
- } else { av_vol = av_vol *0.2 + vol.read() * 0.8;
- }
-}
-
-// Read Humidity sensor data
-void hum_RHT03_read (void){
- while (true){ // wait data
- if ( humtemp.readData() == RHT_ERROR_NONE ){ break; }
- }
- if (humidity_temp == 0){humidity_temp = humtemp.getTemperatureC();
- } else { humidity_temp = humidity_temp * 0.9 + humtemp.getTemperatureC() * 0.1;
- }
- if ( humidity == 0 ){ humidity = humtemp.getHumidity();
- } else { humidity = humidity * 0.9 + humtemp.getHumidity() * 0.1;
- }
-}
-
-// Clear LCD
-void cls(void){
- i2clcd.locate(0, 0);
- i2clcd.printf(" ");
- i2clcd.locate(0, 1);
- i2clcd.printf(" ");
-}
-
-// Set initial time
-void set_initial_time (void){
- // Set Initial data -> 2014/06/22 10:20:00
-#if USE_C_STD_LIB
-struct tm t;
+#if TST_NORMAL
+#include "main_normal.h"
+#endif
- m41t62.read_rtc_std(&t);
- if ((sw_chng == 0) && (sw_mode == 0)){
- t.tm_sec = 0;
- t.tm_min = 20;
- t.tm_hour = 10;
- t.tm_mday = 22;
- t.tm_wday = 0; // Sun is not 7 but 0
- t.tm_mon = 5; // Jan. = 0
- t.tm_year = 14 + 100; // 1900+x = now
- m41t62.write_rtc_std(&t);
- }
-#else
-rtc_time t;
+#if TST_LCD8x2
+#include "main_aqm0802.h"
+#endif
- m41t62.read_rtc_direct(&t);
- if ((sw_chng == 0) && (sw_mode == 0)){
- t.rtc_seconds = 0;
- t.rtc_minutes = 20;
- t.rtc_hours = 10;
- t.rtc_date = 22;
- t.rtc_weekday = RTC_Wk_Sunday;
- t.rtc_month = 6;
- t.rtc_year_raw= 14;
- m41t62.write_rtc_direct(&t);
- }
+#if TST_EEPROM
+#include "main_at24c1024.h"
#endif
-}
-//-------------------------------------
-// Application program starts here
-//-------------------------------------
-int main() {
- pc.baud(9600);
- pc.printf("\r\nmbed LPC1114FN28 test program by JH1PJL created on "__DATE__"(UTC)\r\n");
- i2clcd.setContrast(25);
- i2clcd.locate(0, 0);
- i2clcd.printf("LPC1114F");
- i2clcd.locate(0, 1);
- i2clcd.printf(" JH1PJL ");
- // Initialize data
- av_cds = 0;
- av_vref = 0;
- av_vol = 0;
- humidity_temp = 0;
- humidity = 0;
- // RTC
- m41t62.set_sq_wave(RTC_SQW_NONE);
- set_initial_time();
- // Show initial screen
- wait(5.0);
- while(1) {
- // ---------- Cds Sensor, Vref, Volume ---------------------------------------------------
- // Power on / Analog sensor
- analog_pwr = 1;
- vref_pwr = 1;
- wait(0.2);
- adc_all_read();
- // Power off / Analog sensor
- analog_pwr = 0;
- // Normalize
- adc_normalize(CDS);
- adc_normalize(VREF);
- adc_normalize(VOL);
- cls();
- i2clcd.locate(0, 0); // 1st line top
- // 12345678
- i2clcd.printf("L:%.1f", lux);
- i2clcd.locate(0, 1); // 2nd line top
- i2clcd.printf("V:%.3f", cal_vcc);
- myled0 = 1;
- pc.printf( "\r\nCds:%.0fohm->%.1flux, Vcc:%.3fV, Vol:%d\r\n",
- r_cds, lux, cal_vcc, nor_vol );
- myled0 = 0;
- wait(4.0);
- // ---------- Barometer Sensor / BMP180 --------------------------------------------------
- bmp180.normalize();
- cls();
- i2clcd.locate(0, 0); // 1st line top
- i2clcd.printf("P:%.1f", bmp180.read_pressure());
- i2clcd.locate(0, 1); // 2nd line top
- i2clcd.printf("T:%\+-6.1f", bmp180.read_temperature());
- myled1 = 1;
- pc.printf("Pres:%4.1fhPa, Temp:%\+-0.1fdegC\r\n",
- bmp180.read_pressure(), bmp180.read_temperature());
- myled1 = 0;
- wait(4.0);
- // ---------- Humidity Sensor / RHT03 ----------------------------------------------------
- hum_RHT03_read(); // Read Humidity data then avaraging
- cls();
- i2clcd.locate(0, 0); // 1st line top
- i2clcd.printf("H:%.1f", humidity);
- i2clcd.locate(0, 1); // 2nd line top
- i2clcd.printf("T:%\+-6.1f", humidity_temp);
- myled1 = 1;
- pc.printf("Humid: %0.1f%%RH, Temp:%\+-0.1fdegC\r\n", humidity, humidity_temp);
- myled1 = 0;
- wait(4.0);
- // ---------- Check RTC ------------------------------------------------------------------
-#if USE_C_STD_LIB
-tm t;
-time_t seconds;
-char buf[40];
+#if TST_BMP180
+#include "main_bmp180.h"
+#endif
- m41t62.read_rtc_std(&t);
- seconds = mktime(&t);
- cls();
- i2clcd.locate(0, 0); // 1st line top
- i2clcd.printf("%02d/%02d/%02d", t.tm_year % 100, t.tm_mon, t.tm_mday);
- i2clcd.locate(0, 1); // 2nd line top
- i2clcd.printf("%02d:%02d:%02d", t.tm_hour, t.tm_min, t.tm_sec);
- myled1 = 1;
- // Show Time with several example
- // ex.1
- pc.printf("Date: %04d/%02d/%02d, %02d:%02d:%02d\r\n",
- t.tm_year + 1900, t.tm_mon, t.tm_mday, t.tm_hour, t.tm_min, t.tm_sec);
- // ex.2
- strftime(buf, 40, "%x %X", localtime(&seconds));
- printf("Date: %s\r\n", buf);
- // ex.3
- strftime(buf, 40, "%I:%M:%S %p (%Y/%m/%d)", localtime(&seconds));
- printf("Date: %s\r\n", buf);
- // ex.4
- strftime(buf, 40, "%B %d,'%y, %H:%M:%S", localtime(&seconds));
- printf("Date: %s\r\n", buf);
- myled1 = 0;
- wait(4.0);
-#else
-rtc_time t;
-
- m41t62.read_rtc_direct(&t);
- cls();
- i2clcd.locate(0, 0); // 1st line top
- i2clcd.printf("%02d/%02d/%02d", t.rtc_year, t.rtc_month, t.rtc_date);
- i2clcd.locate(0, 1); // 2nd line top
- i2clcd.printf("%02d:%02d:%02d", t.rtc_hours, t.rtc_minutes, t.rtc_seconds);
- myled1 = 1;
- pc.printf("Date:%04d/%02d/%02d(%s), Time:%02d:%02d:%02d\r\n",
- t.rtc_year, t.rtc_month, t.rtc_date, &week[t.rtc_weekday-1][0],
- t.rtc_hours, t.rtc_minutes, t.rtc_seconds);
- myled1 = 0;
- wait(4.0);
-#endif
- }
-}
+#if TST_M41T62
+#include "main_m41t62.h"
+#endif
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main_aqm0802.h Sun Jun 22 06:10:57 2014 +0000
@@ -0,0 +1,56 @@
+/*
+ * mbed Application program for the mbed LPC1114FN28
+ * Test program -> Check RTC module
+ *
+ * Copyright (c) 2014 Kenji Arai / JH1PJL
+ * http://www.page.sannet.ne.jp/kenjia/index.html
+ * http://mbed.org/users/kenjiArai/
+ * Created: June 22nd, 2014
+ * Revised: June 22nd, 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
+ * AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+#include "mbed.h"
+#include "TextLCD.h" // Std. lib./ LCD control
+
+I2C i2c(dp5,dp27); // SDA, SCL
+TextLCD_I2C_N i2clcd(&i2c, 0x7c, TextLCD::LCD8x2); // LCD(Akizuki AQM0802A)
+
+//-------------------------------------------------------------------------------------------------
+// Control Program
+//-------------------------------------------------------------------------------------------------
+// Clear LCD
+void cls(void){
+ i2clcd.locate(0, 0);
+ i2clcd.printf(" ");
+ i2clcd.locate(0, 1);
+ i2clcd.printf(" ");
+}
+
+//-------------------------------------
+// Application program starts here
+//-------------------------------------
+int main() {
+uint16_t no = 0;
+
+ i2clcd.setContrast(25);
+ i2clcd.locate(0, 0);
+ i2clcd.printf("LPC1114F");
+ i2clcd.locate(0, 1);
+ i2clcd.printf(" JH1PJL ");
+ // Show initial screen
+ wait(5.0);
+ while(1) {
+ cls();
+ i2clcd.locate(0, 0); // 1st line top
+ // 12345678
+ i2clcd.printf(" test");
+ i2clcd.locate(0, 1); // 2nd line top
+ i2clcd.printf("%8d", ++no);
+ wait(1.0);
+ }
+}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main_at24c1024.h Sun Jun 22 06:10:57 2014 +0000
@@ -0,0 +1,151 @@
+/*
+ * mbed Application program for the mbed LPC1114FN28
+ * Test program -> Check RTC module
+ *
+ * Copyright (c) 2014 Kenji Arai / JH1PJL
+ * http://www.page.sannet.ne.jp/kenjia/index.html
+ * http://mbed.org/users/kenjiArai/
+ * Created: June 22nd, 2014
+ * Revised: June 22nd, 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
+ * AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "mbed.h"
+#include "AT24C1024.h" // Own lib. / EEPROM control
+
+Serial pc(dp16,dp15); // UART (vertual COM)
+#if 1
+AT24C1024 at24c1024(dp5,dp27);// Atmel 1Mbit EE-PROM
+#else
+I2C i2c(dp5,dp27); // SDA, SCL
+AT24C1024 at24c1024(i2c); // Atmel 1Mbit EE-PROM
+#endif
+
+// EEPROM
+uint8_t eep_buf[256 + 2];
+
+// EEPROM test charcters
+const uint8_t eep_char[256] =
+//0 1 2 3 4 5 6 7
+//12345678901234567890123456789012345678901234567890123456789012345678901
+ "The AT24C1024 provides 1048576 bits of serial electrically erasable and"
+//7 8 9 10 11 12 13 14 15
+//2345678901234567890123456789012345678901234567890123456789012345678901234567890123
+ " programmable read only memory (EEPROM) organized as 131,072 words of 8 bits each."
+//15 16 17 18 19 20 21 22 23 24
+//45678901234567890123456789012345678901234567890123456789012345678901234567890123456789012
+ " The devices cascadable feature allows up to four devices to share a common two-wire bus."
+//24 25 256
+//34567890123456
+ " JH1PJL Arai"; // eep_char[255] = 0;
+
+//-------------------------------------------------------------------------------------------------
+// Control Program
+//-------------------------------------------------------------------------------------------------
+int main() {
+int no =0;
+uint8_t dt[4];
+AT24C_STATUS status;
+
+ pc.baud(9600);
+ pc.printf("\r\nmbed LPC1114FN28 EEPROM test by JH1PJL created on "__DATE__"(UTC)\r\n");
+ dt[0] = 0; dt[1] = 0; dt[2] = 0; dt[3] = 0; //initialize data
+ while(1) {
+ // ---------- Check EEPROM ----------------------------------------------------
+ if (no == 4) { // check page write mode (part1)
+ ++no;
+ strcpy((char *)eep_buf,(char *)eep_char); // copy the data
+ status = at24c1024.write_page(0x100, eep_buf, sizeof(eep_buf)); // 0x100= page address
+ pc.printf("(Status: %d) ", status);
+ if (status == AT24C_OK){ // wrote without trouble
+ wait(1.0);
+ for (int i=0; i < 256; i++){ // clear buffer for read data checking
+ eep_buf[i] = 0;
+ }
+ status = at24c1024.read_page(0x100, eep_buf, sizeof(eep_buf));
+ pc.printf("(Status: %d) ", status);
+ if (status == AT24C_OK){ // read w/o trouble
+ pc.printf("\r\n%s\r\n", eep_buf);
+ if (strncmp((char *)eep_buf, (char *)eep_char, 256) == 0){ // equal R/W data
+ pc.printf("Page access OK\r\n");
+ } else { // Read != Wrote
+ pc.printf("Page access Comp NG\r\n");
+ }
+ } else { // read w/ trouble
+ pc.printf("Page access read NG\r\n");
+ }
+ } else { // write w/ trouble
+ pc.printf("Write NG\r\n");
+ }
+ wait(2.0);
+ } else if (no == 5) { // check page write mode (part2)
+ no = 0;
+ for (int i=0; i < 256; i++){ // set writing data 255,254,,,,,3,2,1,0
+ eep_buf[i] = 255 - (uint8_t)i;
+ }
+ status = at24c1024.write_page(0x1ff00, eep_buf, sizeof(eep_buf));
+ pc.printf("(Status: %d) ", status);
+ if (status == AT24C_OK){
+ wait(1.0);
+ for (int i=0; i < 256; i++){ // clear buffer
+ eep_buf[i] = 0;
+ }
+ status = at24c1024.read_page(0x1ff00, eep_buf, sizeof(eep_buf));
+ pc.printf("(Status: %d) ", status);
+ if (status == AT24C_OK){
+ pc.printf("\r\n0:%d, 64:%d, 128:%d, 254:%d, 255:%d\r\n",
+ eep_buf[0], eep_buf[64], eep_buf[128], eep_buf[254], eep_buf[255]);
+ if ((eep_buf[0] == 255) && (eep_buf[64] == 255 - 64)
+ && (eep_buf[128] == 255-128) && (eep_buf[255] == 0)){
+ pc.printf("Page access OK\r\n");
+ } else {
+ pc.printf("Page access Comp NG\r\n");
+ }
+ } else {
+ pc.printf("Page access read NG\r\n");
+ }
+ } else {
+ pc.printf("Write NG\r\n");
+ }
+ wait(2.0);
+ } else { // Write and read (single byte)
+ if (no == 0){ // Initial setting
+ // Check EEPROM (step0)
+ at24c1024.write(0,no);
+ wait(0.1);
+ at24c1024.write(1,0);
+ wait(0.1);
+ at24c1024.write(2,0x55);
+ wait(0.1);
+ at24c1024.write(3,0xaa);
+ wait(0.1);
+ dt[0] = 0xff;
+ dt[1] = 1;
+ dt[2] = 2;
+ dt[3] = 3;
+ }
+ // read 4 bytes
+ dt[0] = at24c1024.read(0);
+ dt[1] = at24c1024.read(1);
+ dt[2] = at24c1024.read(2);
+ dt[3] = at24c1024.read(3);
+ if (dt[0] != no){
+ pc.printf("NG\r\n");
+ } else {
+ if ((dt[1] == 0) && (dt[2] == 0x55) && (dt[3] == 0xaa)){
+ pc.printf("OK\r\n");
+ } else {
+ pc.printf("NG\r\n");
+ }
+ }
+ pc.printf("EEPROM 0x%x,0x%x,0x%x,0x%x\r\n", dt[0],dt[1],dt[2],dt[3]);
+ at24c1024.write(0,++no); // write sequence number into EEPROM
+ wait(2.0);
+ }
+ }
+}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main_bmp180.h Sun Jun 22 06:10:57 2014 +0000
@@ -0,0 +1,42 @@
+/*
+ * mbed Application program for the mbed LPC1114FN28
+ * Test program -> Check RTC module
+ *
+ * Copyright (c) 2014 Kenji Arai / JH1PJL
+ * http://www.page.sannet.ne.jp/kenjia/index.html
+ * http://mbed.org/users/kenjiArai/
+ * Created: June 22nd, 2014
+ * Revised: June 22nd, 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
+ * AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "mbed.h"
+#include "BMP180.h" // Own lib. / Pressure sensor
+
+Serial pc(dp16,dp15); // UART (vertual COM)
+#if 1
+BMP180 bmp180(dp5,dp27); // Bosch sensor
+#else
+I2C i2c(dp5,dp27); // SDA, SCL
+BMP180 bmp180(i2c); // Bosch sensor
+#endif
+
+//-------------------------------------------------------------------------------------------------
+// Control Program
+//-------------------------------------------------------------------------------------------------
+int main() {
+ pc.baud(9600);
+ pc.printf("\r\nmbed LPC1114FN28 BMP180 test by JH1PJL created on "__DATE__"(UTC)\r\n");
+ while(1) {
+ // ---------- Barometer Sensor / BMP180 --------------------------------------------------
+ bmp180.normalize();
+ pc.printf("Pres:%4.1fhPa, Temp:%\+-0.1fdegC\r\n",
+ bmp180.read_pressure(), bmp180.read_temperature());
+ wait(1.0);
+ }
+}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main_m41t62.h Sun Jun 22 06:10:57 2014 +0000
@@ -0,0 +1,68 @@
+/*
+ * mbed Application program for the mbed LPC1114FN28
+ * Test program -> Check RTC module
+ *
+ * Copyright (c) 2014 Kenji Arai / JH1PJL
+ * http://www.page.sannet.ne.jp/kenjia/index.html
+ * http://mbed.org/users/kenjiArai/
+ * Created: June 22nd, 2014
+ * Revised: June 22nd, 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
+ * AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "mbed.h"
+#include "m41t62_rtc.h" // Own lib. / RTC control
+
+Serial pc(dp16,dp15); // UART (vertual COM)
+#if 1
+M41T62 m41t62(dp5,dp27); // STmicro RTC(M41T62)
+#else
+I2C i2c(dp5,dp27); // SDA, SCL
+M41T62 m41t62(i2c); // STmicro RTC(M41T62)
+#endif
+
+//-------------------------------------------------------------------------------------------------
+// Control Program
+//-------------------------------------------------------------------------------------------------
+int main() {
+ pc.baud(9600);
+ pc.printf("\r\nmbed LPC1114FN28 test program by JH1PJL created on "__DATE__"(UTC)\r\n");
+ // RTC
+ m41t62.set_sq_wave(RTC_SQW_NONE);
+ while(1) {
+ // ---------- Check RTC ------------------------------------------------------------------
+tm t;
+time_t seconds;
+char buf[40];
+
+ m41t62.read_rtc_std(&t);
+ seconds = mktime(&t);
+ // Show Time with several example
+#if 0
+ // ex.1
+ pc.printf("Date: %04d/%02d/%02d, %02d:%02d:%02d\r\n",
+ t.tm_year + 1900, t.tm_mon, t.tm_mday, t.tm_hour, t.tm_min, t.tm_sec);
+#endif
+#if 0
+ // ex.2
+ strftime(buf, 40, "%x %X", localtime(&seconds));
+ printf("Date: %s\r\n", buf);
+#endif
+#if 1
+ // ex.3
+ strftime(buf, 40, "%I:%M:%S %p (%Y/%m/%d)", localtime(&seconds));
+ printf("Date: %s\r\n", buf);
+#endif
+#if 0
+ // ex.4
+ strftime(buf, 40, "%B %d,'%y, %H:%M:%S", localtime(&seconds));
+ printf("Date: %s\r\n", buf);
+#endif
+ wait(1.0);
+ }
+}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main_normal.h Sun Jun 22 06:10:57 2014 +0000
@@ -0,0 +1,299 @@
+/*
+ * mbed Application program for the mbed LPC1114FN28
+ * Test program -> same as LPC1114_test_step_7
+ *
+ * Copyright (c) 2014 Kenji Arai / JH1PJL
+ * http://www.page.sannet.ne.jp/kenjia/index.html
+ * http://mbed.org/users/kenjiArai/
+ * Created: June 13th, 2014
+ * Revised: June 22nd, 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
+ * AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "mbed.h"
+#include "BMP180.h" // Own lib. / Pressure sensor
+#include "RHT03.h" // Std. lib./ Humidity sensor
+#include "TextLCD.h" // Std. lib./ LCD control
+#include "AT24C1024.h" // Own lib. / EEPROM control
+#include "m41t62_rtc.h" // Own lib. / RTC control
+
+#define USE_C_STD_LIB 1
+
+#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
+
+I2C i2c(dp5,dp27); // SDA, SCL
+DigitalOut myled0(dp28); // LED for Debug
+DigitalOut myled1(dp14); // Indicate state transition
+DigitalOut analog_pwr(dp6); // VCC for analog interface (vol, cds and vref)
+DigitalOut vref_pwr(dp4); // VCC for Vref
+DigitalIn sw_chng(dp1,PullUp);// SW for select
+DigitalIn sw_mode(dp2,PullUp);// SW for Mode change
+AnalogIn cds(dp11); // Input / CDS data
+AnalogIn vref(dp9); // Input / Bandgap 2.5V
+AnalogIn vol(dp10); // Input / contrast volume
+RHT03 humtemp(dp26); // RHT03 interface
+Serial pc(dp16,dp15); // UART (vertual COM)
+BMP180 bmp180(i2c); // Bosch sensor
+TextLCD_I2C_N i2clcd(&i2c, 0x7c, TextLCD::LCD8x2); // LCD(Akizuki AQM0802A)
+AT24C1024 at24c1024(i2c); // Atmel 1Mbit EE-PROM
+M41T62 m41t62(i2c); // STmicro RTC(M41T62)
+
+typedef enum {CDS = 0, VREF, VOL} ADC_Select;
+
+// ADC
+float av_cds, av_vref, av_vol, cal_vcc;
+float r_cds, lux;
+uint32_t nor_vol;
+
+// Humidity Sensor
+float humidity_temp, humidity;
+
+// EEPROM
+uint8_t eep_buf[256 + 2];
+
+// Cds GL5528 (Dark Resistance 1 Mohm type) SENBA OPTICAL & ELECTRONIC CO.,LTD.
+// Table value referrence: http://homepage3.nifty.com/skomo/f35/hp35_20.htm
+const float lux_cds[CDS_TBL_SIZE][2] =
+ {{50,21194},{100,8356},{200,3294},{400,1299},{800,512},{1600,202},{3200,79.6},{6400,31.4},
+ {12800,12.4},{25600,4.88},{51200,1.92},{102400,0.758},{409600,0.118}};
+
+#if USE_C_STD_LIB == 0
+const char week[7][4] = { "Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"};
+#endif
+
+//-------------------------------------------------------------------------------------------------
+// Control Program
+//-------------------------------------------------------------------------------------------------
+// Normalize ADC data
+void adc_normalize (ADC_Select n){
+int i;
+float x1,y1,dx;
+
+ switch (n){
+ case CDS:
+ // v_adc = Rfix / (Rcds + Rfix) -> Rcds = ( Rfix / v_adc ) - Rfix
+ r_cds = (R_FIX / av_cds) - R_FIX;
+ // CDS resistance to Lux conversion using convertion table (luc_cds[][])
+ for (i =0; i < CDS_TBL_SIZE; i++){ // search table
+ if ( r_cds <= lux_cds[i][0]){ break; }
+ }
+ // Check table position
+ if (i == 0){
+ lux = lux_cds[0][1];
+ break;
+ } else if ( i == CDS_TBL_SIZE ){
+ if ( r_cds <= lux_cds[i][0] ){
+ lux = lux_cds[i-1][1];
+ break;
+ }
+ }
+ // Linear interpolation
+ y1 = lux_cds[i-1][1] - lux_cds[i][1];
+ x1 = lux_cds[i][0] - lux_cds[i-1][0];
+ dx = r_cds - lux_cds[i-1][0];
+ lux = lux_cds[i-1][1] - ((dx/x1) * y1);
+ break;
+ case VREF:
+ // vref = VREF_VOLT / VCC -> VCC = VREF_VOLT / vref
+ cal_vcc = VREF_VOLT / vref;
+ break;
+ case VOL:
+ // Vol center = 1.00 (actual 100)
+ nor_vol = (uint32_t)(av_vol * 200) + VOL_OFFSET;
+ break;
+ }
+}
+
+// Read adc data and averaging
+void adc_all_read (void){
+ if (av_cds == 0){ av_cds = cds.read();
+ } else { av_cds = av_cds *0.5 + cds.read() * 0.5;
+ }
+ if (av_vref == 0){ av_vref = vref.read();
+ } else { av_vref = av_vref *0.9 + vref.read() * 0.1;
+ }
+ if (av_vol == 0){ av_vol = vol.read();
+ } else { av_vol = av_vol *0.2 + vol.read() * 0.8;
+ }
+}
+
+// Read Humidity sensor data
+void hum_RHT03_read (void){
+ while (true){ // wait data
+ if ( humtemp.readData() == RHT_ERROR_NONE ){ break; }
+ }
+ if (humidity_temp == 0){humidity_temp = humtemp.getTemperatureC();
+ } else { humidity_temp = humidity_temp * 0.9 + humtemp.getTemperatureC() * 0.1;
+ }
+ if ( humidity == 0 ){ humidity = humtemp.getHumidity();
+ } else { humidity = humidity * 0.9 + humtemp.getHumidity() * 0.1;
+ }
+}
+
+// Clear LCD
+void cls(void){
+ i2clcd.locate(0, 0);
+ i2clcd.printf(" ");
+ i2clcd.locate(0, 1);
+ i2clcd.printf(" ");
+}
+
+// Set initial time
+void set_initial_time (void){
+ // Set Initial data -> 2014/06/22 10:20:00
+#if USE_C_STD_LIB
+struct tm t;
+
+ m41t62.read_rtc_std(&t);
+ if ((sw_chng == 0) && (sw_mode == 0)){
+ t.tm_sec = 0;
+ t.tm_min = 20;
+ t.tm_hour = 10;
+ t.tm_mday = 22;
+ t.tm_wday = 0; // Sun is not 7 but 0
+ t.tm_mon = 5; // Jan. = 0
+ t.tm_year = 14 + 100; // 1900+x = now
+ m41t62.write_rtc_std(&t);
+ }
+#else
+rtc_time t;
+
+ m41t62.read_rtc_direct(&t);
+ if ((sw_chng == 0) && (sw_mode == 0)){
+ t.rtc_seconds = 0;
+ t.rtc_minutes = 20;
+ t.rtc_hours = 10;
+ t.rtc_date = 22;
+ t.rtc_weekday = RTC_Wk_Sunday;
+ t.rtc_month = 6;
+ t.rtc_year_raw= 14;
+ m41t62.write_rtc_direct(&t);
+ }
+#endif
+}
+
+//-------------------------------------
+// Application program starts here
+//-------------------------------------
+int main() {
+ pc.baud(9600);
+ pc.printf("\r\nmbed LPC1114FN28 test program by JH1PJL created on "__DATE__"(UTC)\r\n");
+ i2clcd.setContrast(25);
+ i2clcd.locate(0, 0);
+ i2clcd.printf("LPC1114F");
+ i2clcd.locate(0, 1);
+ i2clcd.printf(" JH1PJL ");
+ // Initialize data
+ av_cds = 0;
+ av_vref = 0;
+ av_vol = 0;
+ humidity_temp = 0;
+ humidity = 0;
+ // RTC
+ m41t62.set_sq_wave(RTC_SQW_NONE);
+ set_initial_time();
+ // Show initial screen
+ wait(5.0);
+ while(1) {
+ // ---------- Cds Sensor, Vref, Volume ---------------------------------------------------
+ // Power on / Analog sensor
+ analog_pwr = 1;
+ vref_pwr = 1;
+ wait(0.2);
+ adc_all_read();
+ // Power off / Analog sensor
+ analog_pwr = 0;
+ // Normalize
+ adc_normalize(CDS);
+ adc_normalize(VREF);
+ adc_normalize(VOL);
+ cls();
+ i2clcd.locate(0, 0); // 1st line top
+ // 12345678
+ i2clcd.printf("L:%.1f", lux);
+ i2clcd.locate(0, 1); // 2nd line top
+ i2clcd.printf("V:%.3f", cal_vcc);
+ myled0 = 1;
+ pc.printf( "\r\nCds:%.0fohm->%.1flux, Vcc:%.3fV, Vol:%d\r\n",
+ r_cds, lux, cal_vcc, nor_vol );
+ myled0 = 0;
+ wait(4.0);
+ // ---------- Barometer Sensor / BMP180 --------------------------------------------------
+ bmp180.normalize();
+ cls();
+ i2clcd.locate(0, 0); // 1st line top
+ i2clcd.printf("P:%.1f", bmp180.read_pressure());
+ i2clcd.locate(0, 1); // 2nd line top
+ i2clcd.printf("T:%\+-6.1f", bmp180.read_temperature());
+ myled1 = 1;
+ pc.printf("Pres:%4.1fhPa, Temp:%\+-0.1fdegC\r\n",
+ bmp180.read_pressure(), bmp180.read_temperature());
+ myled1 = 0;
+ wait(4.0);
+ // ---------- Humidity Sensor / RHT03 ----------------------------------------------------
+ hum_RHT03_read(); // Read Humidity data then avaraging
+ cls();
+ i2clcd.locate(0, 0); // 1st line top
+ i2clcd.printf("H:%.1f", humidity);
+ i2clcd.locate(0, 1); // 2nd line top
+ i2clcd.printf("T:%\+-6.1f", humidity_temp);
+ myled1 = 1;
+ pc.printf("Humid: %0.1f%%RH, Temp:%\+-0.1fdegC\r\n", humidity, humidity_temp);
+ myled1 = 0;
+ wait(4.0);
+ // ---------- Check RTC ------------------------------------------------------------------
+#if USE_C_STD_LIB
+tm t;
+time_t seconds;
+char buf[40];
+
+ m41t62.read_rtc_std(&t);
+ seconds = mktime(&t);
+ cls();
+ i2clcd.locate(0, 0); // 1st line top
+ i2clcd.printf("%02d/%02d/%02d", t.tm_year % 100, t.tm_mon + 1, t.tm_mday);
+ i2clcd.locate(0, 1); // 2nd line top
+ i2clcd.printf("%02d:%02d:%02d", t.tm_hour, t.tm_min, t.tm_sec);
+ myled1 = 1;
+ // Show Time with several example
+ // ex.1
+ pc.printf("Date: %04d/%02d/%02d, %02d:%02d:%02d\r\n",
+ t.tm_year + 1900, t.tm_mon + 1, t.tm_mday, t.tm_hour, t.tm_min, t.tm_sec);
+ // ex.2
+ strftime(buf, 40, "%x %X", localtime(&seconds));
+ printf("Date: %s\r\n", buf);
+ // ex.3
+ strftime(buf, 40, "%I:%M:%S %p (%Y/%m/%d)", localtime(&seconds));
+ printf("Date: %s\r\n", buf);
+ // ex.4
+ strftime(buf, 40, "%B %d,'%y, %H:%M:%S", localtime(&seconds));
+ printf("Date: %s\r\n", buf);
+ myled1 = 0;
+ wait(4.0);
+#else
+rtc_time t;
+
+ m41t62.read_rtc_direct(&t);
+ cls();
+ i2clcd.locate(0, 0); // 1st line top
+ i2clcd.printf("%02d/%02d/%02d", t.rtc_year, t.rtc_month, t.rtc_date);
+ i2clcd.locate(0, 1); // 2nd line top
+ i2clcd.printf("%02d:%02d:%02d", t.rtc_hours, t.rtc_minutes, t.rtc_seconds);
+ myled1 = 1;
+ pc.printf("Date:%04d/%02d/%02d(%s), Time:%02d:%02d:%02d\r\n",
+ t.rtc_year, t.rtc_month, t.rtc_date, &week[t.rtc_weekday-1][0],
+ t.rtc_hours, t.rtc_minutes, t.rtc_seconds);
+ myled1 = 0;
+ wait(4.0);
+#endif
+ }
+}
+