Daniel David
Weather station project
Dependencies: BH1750 BMP280 DS1820 HMC5983 Helios MAX17043 MPU6050 SHTx SSD1306_I2C A4988_stepper mbed
Revision 0:e42837021e1a, committed 2018-07-01
- Comitter:
- daniel_davvid
- Date:
- Sun Jul 01 12:11:00 2018 +0000
- Commit message:
- Weather station project based on multiple sensors
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/BH1750.lib Sun Jul 01 12:11:00 2018 +0000 @@ -0,0 +1,1 @@ +https://os.mbed.com/users/daniel_davvid/code/BH1750/#2d9ef50ea9d3
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/BMP280.lib Sun Jul 01 12:11:00 2018 +0000 @@ -0,0 +1,1 @@ +https://os.mbed.com/users/daniel_davvid/code/BMP280/#3a0af995dd4c
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/DS1820.lib Sun Jul 01 12:11:00 2018 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/Sissors/code/DS1820/#236eb8f8e73a
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/HMC5983.lib Sun Jul 01 12:11:00 2018 +0000 @@ -0,0 +1,1 @@ +https://os.mbed.com/users/acracan/code/HMC5983/#cffff4c45a14
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/Helios.lib Sun Jul 01 12:11:00 2018 +0000 @@ -0,0 +1,1 @@ +https://os.mbed.com/users/acracan/code/Helios/#ad31da30ae64
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/MAX17043.lib Sun Jul 01 12:11:00 2018 +0000 @@ -0,0 +1,1 @@ +https://os.mbed.com/users/daniel_davvid/code/MAX17043/#4287b7d9c9ca
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/MPU6050.lib Sun Jul 01 12:11:00 2018 +0000 @@ -0,0 +1,1 @@ +https://os.mbed.com/users/daniel_davvid/code/MPU6050/#aef0335c060b
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/SHTx.lib Sun Jul 01 12:11:00 2018 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/NegativeBlack/code/SHTx/#8465801be23f
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/SSD1306_128x64_I2C.lib Sun Jul 01 12:11:00 2018 +0000 @@ -0,0 +1,1 @@ +https://os.mbed.com/users/daniel_davvid/code/SSD1306_I2C/#05989d252f62
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/STEPPER.lib Sun Jul 01 12:11:00 2018 +0000 @@ -0,0 +1,1 @@ +https://os.mbed.com/users/daniel_davvid/code/A4988_stepper/#3ea32ec0e172
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Sun Jul 01 12:11:00 2018 +0000
@@ -0,0 +1,249 @@
+#include "mbed.h"
+
+#ifndef M_PI
+#define M_PI 3.1415926535897932384626433832795028841971693993751058209749445923078164
+#endif
+// DS1820 temp sens pin
+#define MAX_PROBES 16
+#define DATA_PIN A0
+//#define MULTIPLE_PROBES
+
+#include "BH1750.h" //Light sensor lib
+#include "BMP280.h" //Pressure sensor lib
+#include "DS1820.h" //Temp sensor lib (One wire)
+#include "Helios.h" //Sun tracking algorithm
+#include "HMC5983.h" //Compass lib
+#include "MAX17043.h" //Fuel gauge sens lib
+#include "MPU6050.h" //Accelerometer sensor lib
+#include "SHTx/sht15.hpp" //Humidity sens lib
+#include "SSD1306.h" //Display lib
+#include "stepper.h" //Stepping motor lib.
+
+Serial pc(USBTX, USBRX);
+//Digital pins
+
+//Analog pins
+AnalogIn waterLevel(A1);
+AnalogIn currentData(A2);
+
+// Stepper motor setup
+stepper stpCirc(PA_12, NC, NC, NC, PB_1, PB_2);
+stepper stpAngl(PA_11, NC, NC, NC, PB_14, PB_15);
+
+//DS1820 setup
+DS1820* probe[MAX_PROBES];
+
+//Helios algorithm
+Helios sun;
+
+// I2C communication setup
+I2C i2c1(D14, D15);
+I2C i2c2(D3, D6);
+I2C i2c3(D5, D7);
+
+// Maybe change the format
+SHTx::SHT15 sensor(D5, D7);
+
+//I2C 1 sensors
+BH1750 bh(i2c1);
+BMP280 bmp(i2c1);
+HMC5983 compass(i2c1);
+MAX17043 fuelGauge(i2c1);
+SSD1306 lcd1(&i2c1, 0x78);
+
+//I2C 2 sensors
+SSD1306 lcd2(&i2c2, 0x78);
+MPU6050 mpu(i2c2);
+
+// Timers
+Timer displayTimer;
+Timer stepperRelaxTimer;
+Timer compassPollTimer;
+
+//Accel
+//not needed?
+Vector rawGyro, normGyro;
+Vector rawAccel, normAccel;
+//
+Vector scaledAccel;
+float vertG;
+//Compass
+
+double desiredAngle, actualAngle;
+
+//Functions
+double angleDiff(double a, double b);
+int waterLevel();
+int pirDetect();
+float curentData();
+
+int main()
+{
+ //Helios algorithm setup
+ time_t seconds;
+ char buffer[32];
+ set_time(1529836800);
+
+ //Stepper enable
+ stpCirc.enable();
+ stpAngl.enable();
+ //SHT15 setup
+ sensor.setOTPReload(false);
+ sensor.setResolution(true);
+
+ // DS1820 setup
+ int num_devices = 0;
+ while(DS1820::unassignedProbe(DATA_PIN)) {
+ probe[num_devices] = new DS1820(DATA_PIN);
+ num_devices++;
+ if (num_devices == MAX_PROBES)
+ break;
+ //MPU setup
+ while(!mpu.begin(MPU6050_SCALE_2000DPS, MPU6050_RANGE_2G)) {
+ pc.printf("Could not find a valid MPU6050 sensor, check wiring!\n");
+ wait(0.5);
+ }
+ mpu.calibrateGyro();
+ mpu.setThreshold(3);
+
+ //BMP setup
+ bmp.initialize();
+ //BH setup
+ bh.init();
+ //
+ compass.init();
+ desiredAngle = 0.0; //** SET BY HELIOS LIB!!!!**
+
+ //Timers Start
+ displayTimer.start();
+ compassPollTimer.start();
+
+
+ while (1) {
+
+ //Helios
+ seconds = time(NULL);
+ sun.updatePosition();
+ strftime(buffer, 32, "%H:%M:%S", localtime(&seconds));
+
+ //SHT15
+ busy = true;
+ sensor.update();
+ busy = false;
+ sensor.setScale(false);
+
+ //MPU readings
+ // not needed?
+ rawGyro = mpu.readRawGyro();
+ normGyro = mpu.readNormalizeGyro();
+ rawAccel = mpu.readRawAccel();
+ normAccel = mpu.readNormalizeAccel();
+ // (ADD TO A new READ FUNCTION in lib???)
+ scaledAccel = mpu.readScaledAccel();
+ vertG = scaledAccel.ZAxis;
+ vertG = vertG > 2.0f ? 3.9f - vertG : vertG;
+ vertG = vertG < 1.0f ? vertG : 1.0f;
+ vertG = vertG > -1.0f ? vertG : -1.0f;
+
+
+ if (compassPollTimer.read() > 1) {
+ compassPollTimer.reset();
+ actualAngle = 360-compass.read();
+
+ //Helios
+ printf("UTC time is: %s\n", buffer);
+ printf("Sun azimuth: %.2f, elevation: %.2f\n", sun.azimuth(), sun.elevation());
+
+ //MAXI17043
+ pc.printf("Vcell: %.2f\n", fuelGauge.getFloatVCell());
+ pc.printf("Battery: %.2f\n", fuelGauge.getFloatSOC());
+
+ //SHT15
+ pc.printf("Temperature [ %3.2f C ]\r\n", sensor.getTemperature());
+ pc.printf("Humdity [ %3.2f %% ]\r\n\n", sensor.getHumidity());
+
+ //DS1820 sensor
+ probe[0]->convertTemperature(true, DS1820::all_devices);
+ for (int i = 0; i<num_devices; i++)
+ pc.printf("Device %d returns %3.1foC\r\n", i, probe[i]->temperature());
+ //
+
+ lcd.setPageAddress(0,0);
+ lcd.setColumnAddress(0,127);
+ lcd.printf("Compass: %3.0f", actualAngle);
+ pc.printf("Compass: %2.3f\n", actualAngle);
+ //lcd.printf("Difference: %f\n", angleDiff(actualAngle, desiredAngle));
+
+ lcd.setPageAddress(1,1);
+ lcd.setColumnAddress(0,127);
+ lcd.printf("Angle: %2.0f", acos(vertG)/M_PI*180.0f);
+// lcd.printf("Angle: %2.3f", vertG);
+ pc.printf("Vertical angle: %1.3f\n", acos(vertG)/M_PI*180.0f);
+
+ lcd.setPageAddress(2,2);
+ lcd.setColumnAddress(0,127);
+ lcd.printf("LUX: %4.0f", (bh.lux()/1.2f));
+ pc.printf("Intensity: %5.2f lux\n", (bh.lux()/1.2f));
+
+ pc.printf("Temp = %f\t Pres = %f\n", bmp.getTemperature(),bmp.getPressure());
+ lcd.setPageAddress(3,3);
+ lcd.setColumnAddress(0,127);
+ lcd.printf("Temp: %.1f", bmp.getTemperature());
+ lcd.setPageAddress(4,4);
+ lcd.setColumnAddress(0,127);
+ lcd.printf("Press: %4.f", bmp.getPressure());
+
+
+
+ if (abs(angleDiff(actualAngle, desiredAngle)) > 5) {
+ if (angleDiff(actualAngle, desiredAngle) > 0) {
+ stepper.setDirection(StepperController::DirectionCCW);
+ stpAngl.step(0, 1, 100);
+ }
+ else {
+ stepper.setDirection(StepperController::DirectionCW);
+ stpAngl.step(0, 0, 100);
+ }
+
+ }
+ }
+ }
+}
+
+double angleDiff(double a, double b)
+{
+ double diff = a - b;
+
+ if (diff > 180)
+ diff -= 360;
+ if (diff < -180)
+ diff += 360;
+ return diff;
+}
+
+int waterLevel(){
+ float value;
+ value = waterLevel.read() *1000;
+ if (value<=150) {
+ value=0;
+ } else if (value>150 && value<=210) {
+ value=1/4;
+ } else if (value>210 && value<=250) {
+ value=1/2;
+ } else if (value>250 && value<=350) {
+ value=3/4;;
+ } else if (value>350) {
+ value=1;
+ }
+ value=value*100; //final data in x%
+ return value;
+}
+
+float currentData(){
+ //VOUT=Vcc/2+i*VCC/36.7
+ //i=36.7*Vout/Vcc-18.3
+
+ float current;
+ current = 36.7*(currentData.read()/3.3)-18.3;//???
+ return current;
+}
\ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Sun Jul 01 12:11:00 2018 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/a7c7b631e539 \ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/rtc_prog.cpp Sun Jul 01 12:11:00 2018 +0000
@@ -0,0 +1,278 @@
+/*
+ * mbed Application program
+ * RTC (inside STM32x CPU) test program
+ *
+ * Copyright (c) 2015,'16,'17 Kenji Arai / JH1PJL
+ * http://www.page.sannet.ne.jp/kenjia/index.html
+ * http://mbed.org/users/kenjiArai/
+ * Created: January 17th, 2015
+ * Revised: January 16th, 2017
+ *
+ * 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.
+ */
+
+/* mbed library now suports RTC continuous operation at Reset & Power ON/OFF
+ --------------------------------------------------------------------------
+ In the past, rtc_api.c (inside mbed) alway made a reset RTC registers
+ when user push a reset buttom or terninate a power.
+ Even if user configures a back-up circuit for RTC, mbed board could not
+ keep proper time.
+ I have checked mbed rev.133 and mbed-dev rev.155.
+ */
+
+/*
+ ----- Tested board -----
+ / Reset: / Stanby: / power off and restart:
+ Nucleo-F401RE / ok / ok / ok (need following Back-up Circuit)
+ Nucleo-F411RE / ok / ok / ok (need following Back-up Circuit)
+ Nucleo-F446RE / ok / ok / ok (need following Back-up Circuit)
+ Nucleo-F334R8 / ok / ok / ok (need following Back-up Circuit)
+ Nucleo-L476RG / ok / ok / ok (need following Back-up Circuit)
+ Nucleo-L152RE / ok / ok / no check (Need additional hardware)
+ Nucleo-L073RZ / ok / ok / no check (Need additional hardware)
+ Nucleo-L053R8 / ok / ok / no check (Need additional hardware)
+
+ < Back-up circuit >
+ CN7 VIN <- SBD <- 330 Ohm <- CR2032 + - -> CN7 GND
+ Remove SB45 Zero Ohm resistor
+ */
+
+ -------------------------/*
+
+// Include --------------------------------------------------------------------
+#include "mbed.h"
+
+// Definition -----------------------------------------------------------------
+#if (defined(TARGET_STM32F746NG) || defined(TARGET_STM32F746ZG))
+#define PUSHED_SW 1 // Active high
+#else
+#define PUSHED_SW 0 // Active low
+#endif
+
+// Object ---------------------------------------------------------------------
+DigitalIn userSW(USER_BUTTON);
+DigitalOut myled(LED1); // Indicate the sampling period
+Serial pc(USBTX, USBRX);
+
+// RAM ------------------------------------------------------------------------
+
+// ROM / Constant data --------------------------------------------------------
+char *const msg0 = "Is a time correct? If no, please hit any key. ";
+char *const msg1 = "<Push USER SW then enter sleep mode> ";
+char *const msg2 = "\r\nEnter Standby Mode, please push RESET to wake-up\r\n";
+
+// Function prototypes --------------------------------------------------------
+static void time_enter_mode(void);
+static void chk_and_set_time(char *ptr);
+static void goto_standby(void);
+static int xatoi (char **str, unsigned long *res);
+static void get_line (char *buff, int len);
+
+//------------------------------------------------------------------------------
+// Control Program
+//------------------------------------------------------------------------------
+int main()
+{
+ char buf[64]; // data buffer for text
+ time_t seconds;
+ uint8_t wait_counter = 0;
+
+ wait(2.0);
+ pc.printf("\r\n\r\nTest Nucleo RTC Function\r\n");
+ myled = !myled;
+ // waiting for Initial screen
+ myled = 1;
+ wait(1.0);
+ myled = !myled;
+ wait(1.0);
+ while(1) {
+ seconds = time(NULL);
+ strftime(buf, 50, " %B %d,'%y, %H:%M:%S\r\n", localtime(&seconds));
+ pc.printf("[Time] %s", buf);
+ pc.printf(msg0);
+ pc.printf("%s\r", msg1);
+ wait_counter = 0;
+ while (seconds == time(NULL)){
+ if (pc.readable() == 1){
+ buf[0] = pc.getc(); // dummy read
+ time_enter_mode();
+ }
+ if (userSW == PUSHED_SW){
+ pc.printf(msg2);
+ wait(1.0);
+ myled = 0;
+ goto_standby();
+ }
+ wait(0.05);
+ if (++wait_counter > (2000 / 50)){
+ break;
+ }
+ }
+ uint8_t n = strlen(msg0) + strlen(msg1);
+ for (uint8_t i = 0; i < n; i++){
+ pc.putc(' ');
+ }
+ pc.printf(" \r"); // Not use '\n'
+ myled = !myled;
+ }
+}
+
+void time_enter_mode(void)
+{
+ char *ptr;
+ char linebuf[64];
+
+ pc.printf("\r\nSet time into RTC\r\n");
+ pc.printf(" e.g. >17 1 16 20 55 23 -> January 16th,'17, 20:55:23\r\n");
+ pc.printf(" If time is fine, just hit enter\r\n");
+ pc.putc('>');
+ ptr = linebuf;
+ get_line(ptr, sizeof(linebuf));
+ pc.printf("\r");
+ chk_and_set_time(ptr);
+}
+
+void goto_standby(void)
+{
+ deepsleep(); // Not Standby Mode but Deep Sleep Mode
+}
+
+// Change string -> integer
+int xatoi (char **str, unsigned long *res)
+{
+ unsigned long val;
+ unsigned char c, radix, s = 0;
+
+ while ((c = **str) == ' ') (*str)++;
+ if (c == '-') {
+ s = 1;
+ c = *(++(*str));
+ }
+ if (c == '0') {
+ c = *(++(*str));
+ if (c <= ' ') {
+ *res = 0;
+ return 1;
+ }
+ if (c == 'x') {
+ radix = 16;
+ c = *(++(*str));
+ } else {
+ if (c == 'b') {
+ radix = 2;
+ c = *(++(*str));
+ } else {
+ if ((c >= '0')&&(c <= '9')) {
+ radix = 8;
+ } else {
+ return 0;
+ }
+ }
+ }
+ } else {
+ if ((c < '1')||(c > '9')) {
+ return 0;
+ }
+ radix = 10;
+ }
+ val = 0;
+ while (c > ' ') {
+ if (c >= 'a') c -= 0x20;
+ c -= '0';
+ if (c >= 17) {
+ c -= 7;
+ if (c <= 9) return 0;
+ }
+ if (c >= radix) return 0;
+ val = val * radix + c;
+ c = *(++(*str));
+ }
+ if (s) val = -val;
+ *res = val;
+ return 1;
+}
+
+// Get key input data
+void get_line (char *buff, int len)
+{
+ char c;
+ int idx = 0;
+
+ for (;;) {
+ c = pc.getc();
+ if (c == '\r') {
+ buff[idx++] = c;
+ break;
+ }
+ if ((c == '\b') && idx) {
+ idx--;
+ pc.putc(c);
+ pc.putc(' ');
+ pc.putc(c);
+ }
+ if (((uint8_t)c >= ' ') && (idx < len - 1)) {
+ buff[idx++] = c;
+ pc.putc(c);
+ }
+ }
+ buff[idx] = 0;
+ pc.putc('\n');
+}
+
+void chk_and_set_time(char *ptr)
+{
+ unsigned long p1;
+ struct tm t;
+ time_t seconds;
+
+ if (xatoi(&ptr, &p1)) {
+ t.tm_year = (uint8_t)p1 + 100;
+ pc.printf("Year:%d ",p1);
+ xatoi( &ptr, &p1 );
+ t.tm_mon = (uint8_t)p1 - 1;
+ pc.printf("Month:%d ",p1);
+ xatoi( &ptr, &p1 );
+ t.tm_mday = (uint8_t)p1;
+ pc.printf("Day:%d ",p1);
+ xatoi( &ptr, &p1 );
+ t.tm_hour = (uint8_t)p1;
+ pc.printf("Hour:%d ",p1);
+ xatoi( &ptr, &p1 );
+ t.tm_min = (uint8_t)p1;
+ pc.printf("Min:%d ",p1);
+ xatoi( &ptr, &p1 );
+ t.tm_sec = (uint8_t)p1;
+ pc.printf("Sec: %d \r\n",p1);
+ } else {
+ return;
+ }
+ seconds = mktime(&t);
+ set_time(seconds);
+ // 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
+ );
+#if 0
+ time_t seconds;
+ char buf[40];
+
+ seconds = mktime(&t);
+ // ex.2
+ strftime(buf, 40, "%x %X", localtime(&seconds));
+ pc.printf("Date: %s\r\n", buf);
+ // ex.3
+ strftime(buf, 40, "%I:%M:%S %p (%Y/%m/%d)", localtime(&seconds));
+ pc.printf("Date: %s\r\n", buf);
+ // ex.4
+ strftime(buf, 40, "%B %d,'%y, %H:%M:%S", localtime(&seconds));
+ pc.printf("Date: %s\r\n", buf);
+#endif
+}