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DIY-Arduino-variometer
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Thomas Livernet 11 years ago
parent 2ed165eb31
commit 83e6ad8528
4 changed files with 195 additions and 139 deletions
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7
README.md
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@ -19,10 +19,11 @@ Voici à titre indicatif le matériel utilisé et leur prix d'achat sur eBay int
- DC-DC Converter Step Up 1-5V 500mA | 1,13 €
- 3,7V 600mAh LiPo Battery | 3,25 €
- RTC Module for Arduino | 1,54 €
- 3x 10k Ohm resistor + 2x 100k Ohm resistor | 0,05 €
- 3x 10k Ohm resistor + 1x 100k Ohm resistor + 1x 110 Ohm resistor | 0,1 €
- Right Angle Mini Slide Switch | 0,10 €
**TOTAL | 21,36 €**
- Cables | 3€
**TOTAL | 24,41 €**
Présentation

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327
Variometer/Variometer.ino
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@ -1,5 +1,3 @@
//#include <SPI.h>
//#include <PCD8544_SPI.h>
#include <EEPROM.h>
#include <EEPROMAnything.h>
#include <MenuBackend.h>
@ -11,12 +9,8 @@
#include <Adafruit_GFX.h>
#include <Adafruit_PCD8544.h>
#include <RTClib.h>
//#include <avr/pgmspace.h>
//#include <Flash.h>
#include <Arduino.h>
//////////////////RTC///////////////////////
RTC_DS1307 rtc;
#define DATE_DAY 1
@ -25,16 +19,24 @@ RTC_DS1307 rtc;
#define DATE_HOUR 4
#define DATE_MINUTE 5
uint8_t conf_date_displayed = 0;
uint16_t date_conf[5];
uint16_t date_year;
uint8_t date_month;
uint8_t date_day;
uint8_t date_hour;
uint8_t date_minute;
/////////////////////////////////////////
//////////////////ENCODER///////////////////////
#define ENCODER_OPTIMIZE_INTERRUPTS
#define Enter 12
#define ENCODER_STEP 2
Encoder knobLeft(2, 3);
long positionLeft = 0;
Encoder knob(2, 3);
long knobPosition = 0;
int lastEnterState = HIGH;
/////////////////////////////////////////
//////////////////MENU/////////////////////////
bool menuUsed = false;
@ -76,6 +78,7 @@ MenuItem m_retour2 = MenuItem(NULL, MENU_LEFT); //Retour
MenuItem m_stat = MenuItem(NULL, MENU_STAT); //Stat
MenuItem m_recreset = MenuItem(NULL, MENU_RECRESET); //Reset records
/////////////////////////////////////////
//////////////////ECRAN///////////////////////
#define enablePartialUpdate
@ -87,14 +90,12 @@ MenuItem m_recreset = MenuItem(NULL, MENU_RECRESET); //Reset records
#define PIN_SDIN 4
Adafruit_PCD8544 display = Adafruit_PCD8544(PIN_SCLK, PIN_SDIN, PIN_DC, PIN_SCE, PIN_RESET);
/////////////////////////////////////////
///////////////////////////////////////// variables that You can test and try
#define MAX_SAMPLES 10
#define NB_STATS 5
/////////////////////////////////////////
bool initialisation = false; //If true, reset and update eeprom memory at arduino start
/////////////////////////////////////////
/////////////////////VARIO/////////////////////////
Adafruit_BMP085_Unified bmp085 = Adafruit_BMP085_Unified(10085); //set up bmp085 sensor
@ -111,8 +112,8 @@ unsigned long get_time1 = millis();
unsigned long get_time2 = millis();
uint8_t push_write_eeprom = 6;
float my_temperature;
float alt[(MAX_SAMPLES + 1)];
float tim[(MAX_SAMPLES + 1)];
float alt;
float tim;
#define memoryBase 32
// Configuration structure (144 bits)
@ -127,10 +128,11 @@ struct Conf
float p0;
uint8_t stat_index;
} conf = {
0.4 , -1.1 , 0, 0, 50, 10, 1040.00, 0
0.8 , -1.1 , 0, 0, 50, 10, 1040.00, 0
};
// Statistic structure (160 bits)
// Statistic structure (176 bits)
#define NB_STATS 5
struct Stat
{
uint32_t chrono_start;
@ -139,23 +141,23 @@ struct Stat
int alti_min;
float txchutemax;
float txchutemin;
uint16_t cumul_alt;
float cumul_alt;
} stat = {
0, 0, -20000, 20000, 0, 0, 0
};
void readStat(uint8_t index = conf.stat_index, Stat &value = stat) {
void readStat(uint8_t index = conf.stat_index, Stat &value = stat)
{
EEPROM_readAnything(sizeof(Conf) + sizeof(Stat) * index, value);
}
void writeStat(uint8_t index = conf.stat_index, Stat &value = stat) {
void writeStat(uint8_t index = conf.stat_index, Stat &value = stat)
{
EEPROM_writeAnything(sizeof(Conf) + sizeof(Stat) * index, value);
}
void incrementStatIndex() {
void incrementStatIndex()
{
conf.stat_index++;
if (conf.stat_index > NB_STATS - 1)
conf.stat_index = 0;
@ -163,7 +165,8 @@ void incrementStatIndex() {
readStat();
}
void resetStat(uint8_t index = conf.stat_index, bool sound = true) {
void resetStat(uint8_t index = conf.stat_index, bool sound = true)
{
stat.chrono_start = 0;
stat.chrono = 0;
stat.alti_max = -20000;
@ -182,7 +185,8 @@ void resetStat(uint8_t index = conf.stat_index, bool sound = true) {
}
}
void resetAllStats() {
void resetAllStats()
{
for (uint8_t i = 0; i < NB_STATS; i++) {
readStat(i);
resetStat(i, false);
@ -194,24 +198,21 @@ void resetAllStats() {
playConfirmMelody();
}
void playConfirmMelody() {
void playConfirmMelody()
{
toneAC(700, 8, 150);
toneAC(500, 8, 150);
}
void initEeprom() {
void initEeprom()
{
EEPROM_writeAnything(0, conf);
resetAllStats();
}
inline float Averaging_Filter(float input) // moving average filter function
{
return average_pressure * 0.94 + input * 0.06;
}
void renderChrono(Stat value = stat) {
void renderChrono(Stat value = stat)
{
uint16_t s;
if (value.chrono == 0 && value.chrono_start != 0) {
DateTime now = rtc.now();
@ -235,8 +236,8 @@ void renderChrono(Stat value = stat) {
display.print(s);
}
void renderVario() {
void renderVario()
{
display.fillRect(0, 0, 84, 32, WHITE);
// text display tests
display.setCursor(0, 0);
@ -296,13 +297,17 @@ void renderVario() {
display.setTextColor(BLACK);
display.setCursor(0, 41);
display.fillRect(0, 41, 84, 7, WHITE);
display.print(F("M"));
display.print(conf.stat_index + 1);
display.print(F(" "));
renderChrono();
display.display();
}
void renderVarioBar() {
void renderVarioBar()
{
float vario_abs = abs(vario);
display.fillRect(0, 32, 84, 9, WHITE);
if (vario >= 0)
@ -313,8 +318,8 @@ void renderVarioBar() {
display.display();
}
void renderVolume(uint8_t dir = MENU_RIGHT) {
void renderVolume(uint8_t dir = MENU_RIGHT)
{
display.clearDisplay();
display.setTextSize(2);
display.setTextColor(WHITE, BLACK);
@ -332,8 +337,8 @@ void renderVolume(uint8_t dir = MENU_RIGHT) {
display.display();
}
float updateConfItem(float var, uint8_t dir = 2, float increment = 1) {
float updateConfItem(float var, uint8_t dir = 2, float increment = 1)
{
// save the configuration if a parameter is validate.
if (menuUsed_last == true && menuUsed == false) {
menuUsed_last = false;
@ -350,7 +355,8 @@ float updateConfItem(float var, uint8_t dir = 2, float increment = 1) {
return var;
}
void renderStatItem(float value, const __FlashStringHelper *unit, bool integer = false) {
void renderStatItem(float value, const __FlashStringHelper *unit, bool integer = false)
{
menuUsed = false;
display.setTextColor(BLACK);
@ -358,42 +364,76 @@ void renderStatItem(float value, const __FlashStringHelper *unit, bool integer =
display.print((int)value);
}
else {
uint8_t m = floor(value);
if (value < 0)
display.print(F("-"));
float value_abs = abs(value);
uint8_t m = floor(value_abs);
display.print(m);
display.print(F("."));
display.print(round(10 * value) - (10 * m));
display.print(round(10 * value_abs) - (10 * m));
}
display.setTextSize(1);
display.println(unit);
}
void renderZero(int value) {
void renderZero(int value)
{
if (value < 10)
display.print(F("0"));
}
void renderDateTime(DateTime d) {
//display date
void renderDateTime(DateTime d, uint8_t bold = 0)
{
//display date
if (bold == DATE_DAY)
display.setTextColor(WHITE, BLACK);
renderZero(d.day());
display.print(d.day());
if (bold != 0)
display.setTextColor(BLACK);
display.print(F("/"));
if (bold == DATE_MONTH)
display.setTextColor(WHITE, BLACK);
renderZero(d.month());
display.print(d.month());
if (bold != 0)
display.setTextColor(BLACK);
display.print(F("/"));
if (bold == DATE_YEAR)
display.setTextColor(WHITE, BLACK);
renderZero(d.year() - 2000);
display.print(d.year() - 2000); //reduces the length of the year string
if (bold != 0)
display.setTextColor(BLACK);
display.print(F(" "));
//display time
if (bold == DATE_HOUR)
display.setTextColor(WHITE, BLACK);
renderZero(d.hour());
display.print(d.hour());
if (bold != 0)
display.setTextColor(BLACK);
display.print(F(":"));
if (bold == DATE_MINUTE)
display.setTextColor(WHITE, BLACK);
renderZero(d.minute());
display.print(d.minute());
if (bold != 0)
display.setTextColor(BLACK);
}
void renderMenu(MenuItem newMenuItem = menu.getCurrent(), uint8_t dir = 2) {
void renderMenu(MenuItem newMenuItem = menu.getCurrent(), uint8_t dir = 2)
{
display.clearDisplay();
display.setTextSize(1);
display.setTextColor(BLACK);
@ -439,10 +479,14 @@ void renderMenu(MenuItem newMenuItem = menu.getCurrent(), uint8_t dir = 2) {
if (menuUsed) {
menuUsed = false;
display.print(F("Ok"));
sensors_event_t event;
bmp085.getEvent(&event);
conf.p0 = event.pressure; //put it in filter and take average
conf.p0 = event.pressure;
//prevent chrono start and beeping
resetAltitudeSensor();
EEPROM_writeAnything(0, conf);
}
}
@ -451,7 +495,9 @@ void renderMenu(MenuItem newMenuItem = menu.getCurrent(), uint8_t dir = 2) {
case MENU_ALTITUDE:
{
conf.currentAltitude = updateConfItem(conf.currentAltitude, dir, 5);
//prevent chrono start and beeping
resetAltitudeSensor();
display.print(conf.currentAltitude);
display.setTextSize(1);
display.print(F("m"));
@ -527,17 +573,17 @@ void renderMenu(MenuItem newMenuItem = menu.getCurrent(), uint8_t dir = 2) {
{
if (menuUsed_last == false) {
menuUsed_last = true;
menuUsed_last = true;
display.setTextSize(1);
DateTime now = rtc.now();
date_conf[DATE_YEAR] = now.year();
date_conf[DATE_MONTH] = now.month();
date_conf[DATE_DAY] = now.day();
date_conf[DATE_HOUR] = now.hour();
date_conf[DATE_MINUTE] = now.minute();
display.setTextSize(1);
renderDateTime(now);
date_year = now.year();
date_month = now.month();
date_day = now.day();
date_hour = now.hour();
date_minute = now.minute();
}
else {
@ -547,7 +593,6 @@ void renderMenu(MenuItem newMenuItem = menu.getCurrent(), uint8_t dir = 2) {
if (conf_date_displayed < 5) {
display.setTextColor(WHITE, BLACK);
menuUsed_last = true;
menuUsed = true;
conf_date_displayed++;
@ -557,7 +602,7 @@ void renderMenu(MenuItem newMenuItem = menu.getCurrent(), uint8_t dir = 2) {
menuUsed_last = true;
conf_date_displayed = 0;
display.setTextColor(BLACK);
rtc.adjust(DateTime(date_conf[DATE_YEAR], date_conf[DATE_MONTH], date_conf[DATE_DAY], date_conf[DATE_HOUR], date_conf[DATE_MINUTE], 0));
rtc.adjust(DateTime(date_year, date_month, date_day, date_hour, date_minute, 0));
display.setTextSize(1);
renderDateTime(rtc.now());
}
@ -566,32 +611,35 @@ void renderMenu(MenuItem newMenuItem = menu.getCurrent(), uint8_t dir = 2) {
switch (conf_date_displayed) {
case DATE_DAY:
if (dir == MENU_RIGHT) (date_conf[DATE_DAY] >= 31) ? date_conf[DATE_DAY] = 1 : date_conf[DATE_DAY]++;
if (dir == MENU_LEFT) (date_conf[DATE_DAY] == 1) ? date_conf[DATE_DAY] = 31 : date_conf[DATE_DAY]--;
display.println(F("Jour"));
if (dir == MENU_RIGHT) (date_day >= 31) ? date_day = 1 : date_day++;
if (dir == MENU_LEFT) (date_day == 1) ? date_day = 31 : date_day--;
//display.println(F("Jour"));
break;
case DATE_MONTH:
if (dir == MENU_RIGHT) (date_conf[DATE_MONTH] >= 12) ? date_conf[DATE_MONTH] = 1 : date_conf[DATE_MONTH]++;
if (dir == MENU_LEFT) (date_conf[DATE_MONTH] == 1) ? date_conf[DATE_MONTH] = 12 : date_conf[DATE_MONTH]--;
display.println(F("Mois"));
if (dir == MENU_RIGHT) (date_month >= 12) ? date_month = 1 : date_month++;
if (dir == MENU_LEFT) (date_month == 1) ? date_month = 12 : date_month--;
//display.println(F("Mois"));
break;
case DATE_YEAR:
if (dir == MENU_RIGHT) date_conf[DATE_YEAR]++;
if (dir == MENU_LEFT) date_conf[DATE_YEAR]--;
display.println(F("Annee"));
if (dir == MENU_RIGHT) (date_year >= 2099) ? date_year = 2000 : date_year++;
if (dir == MENU_LEFT) (date_year == 2000) ? date_year = 2099 : date_year--;
//display.println(F("Annee"));
break;
case DATE_HOUR:
if (dir == MENU_RIGHT) (date_conf[DATE_HOUR] >= 23) ? date_conf[DATE_HOUR] = 0 : date_conf[DATE_HOUR]++;
if (dir == MENU_LEFT) (date_conf[DATE_HOUR] == 0) ? date_conf[DATE_HOUR] = 23 : date_conf[DATE_HOUR]--;
display.println(F("Heure"));
if (dir == MENU_RIGHT) (date_hour >= 23) ? date_hour = 0 : date_hour++;
if (dir == MENU_LEFT) (date_hour == 0) ? date_hour = 23 : date_hour--;
//display.println(F("Heure"));
break;
case DATE_MINUTE:
if (dir == MENU_RIGHT) (date_conf[DATE_MINUTE] >= 59) ? date_conf[DATE_MINUTE] = 0 : date_conf[DATE_MINUTE]++;
if (dir == MENU_LEFT)(date_conf[DATE_MINUTE] == 0) ? date_conf[DATE_MINUTE] = 59 : date_conf[DATE_MINUTE]--;
display.println(F("Minute"));
if (dir == MENU_RIGHT) (date_minute >= 59) ? date_minute = 0 : date_minute++;
if (dir == MENU_LEFT)(date_minute == 0) ? date_minute = 59 : date_minute--;
//display.println(F("Minute"));
break;
}
display.print(date_conf[conf_date_displayed]);
display.setTextColor(BLACK);
renderDateTime(DateTime(date_year, date_month, date_day, date_hour, date_minute, 0), conf_date_displayed);
//display.print(date_conf[conf_date_displayed]);
}
}
break;
@ -607,9 +655,9 @@ void renderMenu(MenuItem newMenuItem = menu.getCurrent(), uint8_t dir = 2) {
display.setTextColor(WHITE, BLACK);
if (stat_to_display.chrono == 0){
display.print(F("M"));
display.print(stat_displayed);
display.print(F(" - vide"));
display.print(F(" vide"));
}
else {
@ -644,7 +692,7 @@ void renderMenu(MenuItem newMenuItem = menu.getCurrent(), uint8_t dir = 2) {
renderStatItem(m, F("m/s"));
display.print(F("Cumul:"));
renderStatItem(stat_to_display.cumul_alt, F("m"), true);
renderStatItem(round(stat_to_display.cumul_alt), F("m"), true);
}
}
break;
@ -684,7 +732,7 @@ void menuSetup()
m_recreset.name = F("Reset"); //Reset records
/*
This is the structure of the modelled menu
This is the structure of the modelled menu
Vario
Options
@ -719,10 +767,10 @@ void menuSetup()
}
/*
This is an important function
Here all use events are handled
This is an important function
Here all use events are handled
This is where you define a behaviour for a menu item
This is where you define a behaviour for a menu item
*/
void menuUseEvent(MenuUseEvent used)
{
@ -739,23 +787,36 @@ void menuUseEvent(MenuUseEvent used)
}
/*
This is an important function
Here we get a notification whenever the user changes the menu
That is, when the menu is navigated
This is an important function
Here we get a notification whenever the user changes the menu
That is, when the menu is navigated
*/
void menuChangeEvent(MenuChangeEvent changed)
{
renderMenu(changed.to);
}
int readVccPercent() {
int readVccPercent()
{
//unsigned int raw_bat = analogRead(A0);
float real_bat = ((analogRead(A0) * (3.7 / 1024)) * 2);
average_vcc = average_vcc * 0.94 + real_bat * 0.06;
return round((average_vcc - 1.5) * 100 / (3.7 - 1.5));
}
void resetAltitudeSensor()
{
// get a new sensor event
sensors_event_t event;
bmp085.getEvent(&event);
average_pressure = event.pressure; //put it in filter and take average
bmp085.getTemperature(&my_temperature);
Altitude = bmp085.pressureToAltitude(conf.p0, average_pressure, my_temperature) + conf.currentAltitude; //take new altitude in meters
altitude_temp = Altitude;
alt = Altitude;
tim = millis();
}
void setup()
{
//Serial.begin(9600);
@ -777,14 +838,8 @@ void setup()
pinMode(PIN_LIGHT, OUTPUT);
bmp085.begin();
// get a new sensor event
sensors_event_t event;
bmp085.getEvent(&event);
average_pressure = event.pressure; //put it in filter and take average
bmp085.getTemperature(&my_temperature);
Altitude = bmp085.pressureToAltitude(conf.p0, average_pressure, my_temperature) + conf.currentAltitude; //take new altitude in meters
altitude_temp = Altitude;
resetAltitudeSensor();
display.begin();
display.setContrast(conf.contrast_default);
display.setTextWrap(false);
@ -805,36 +860,29 @@ void loop()
bmp085.getEvent(&event);
// put it in filter and take average
average_pressure = Averaging_Filter(event.pressure);
average_pressure = average_pressure * 0.94 + event.pressure * 0.06;
// set up my_temperature
bmp085.getTemperature(&my_temperature);
// take new altitude in meters
Altitude = bmp085.pressureToAltitude(conf.p0, average_pressure, my_temperature) + conf.currentAltitude;
float tempo = millis();
float N1 = 0;
float N2 = 0;
float N3 = 0;
float D1 = 0;
float D2 = 0;
//samples averaging and vario algorithm
for (uint8_t cc = 1; cc <= MAX_SAMPLES; cc++) {
alt[(cc - 1)] = alt[cc];
tim[(cc - 1)] = tim[cc];
};
alt[MAX_SAMPLES] = Altitude;
tim[MAX_SAMPLES] = tempo;
float stime = tim[0];
for (uint8_t cc = 0; cc < MAX_SAMPLES; cc++) {
N1 += (tim[cc] - stime) * alt[cc];
N2 += (tim[cc] - stime);
N3 += (alt[cc]);
D1 += (tim[cc] - stime) * (tim[cc] - stime);
D2 += (tim[cc] - stime);
};
vario = 1000 * ((MAX_SAMPLES * N1) - N2 * N3) / (MAX_SAMPLES * D1 - D2 * D2);
float D2 = (tim - tempo);
float N1 = D2 * alt;
float N2 = D2 * (alt + Altitude);
float D1 = D2 * D2;
alt = Altitude;
tim = tempo;
/*
2 * (D2 * alt) - D2 * (alt + Altitude)
2 * (D2 * alt) - (D2 * alt + D2 * Altitude)
(D2 * alt) + (D2 * alt) - D2 * alt + D2 * Altitude
*/
vario = vario * 0.80 + (1000 * (2 * N1 - N2) / D1) * 0.2;
// Update stats if chrono is running
if (stat.chrono_start != 0) {
@ -853,12 +901,15 @@ void loop()
// make some beep...
if (vario < 15 && vario > -15) {
if (vario > conf.vario_climb_rate_start && conf.vario_climb_rate_start != 0) {
//when climbing make faster and shorter beeps
//toneAC(300 + (100 * vario), conf.volume, (vario * 100) + 100, (vario < 1));
toneAC(900 + (100 * vario), conf.volume, 200 - (vario * 10));
} else if (vario < conf.vario_sink_rate_start && conf.vario_sink_rate_start != 0) {
//toneAC(250 + (100 * vario), conf.volume, -(vario * 100) + 100, (vario < 1));
toneAC(900 + (100 * vario), conf.volume, 200 - (vario * 10));
}
}
@ -946,15 +997,19 @@ void loop()
}
}
void readButtons() {
long newLeft = knobLeft.read();
if (newLeft != positionLeft) {
if (newLeft % 2 == 0) {
if (newLeft > positionLeft) { //Right
void readButtons()
{
long newKnobPosition = knob.read();
if (newKnobPosition != knobPosition) {
//Serial.print(newKnobPosition);
//Serial.print(F(" / "));
//Serial.println(knobPosition);
if (abs(newKnobPosition-knobPosition) >= ENCODER_STEP) {
if (newKnobPosition > knobPosition) { //Right
if (!menuUsed && varioState == false) {
if (menu.getCurrent().getShortkey() == MENU_STAT && stat_displayed < NB_STATS) {
stat_blink_status = false;
get_time2 += 1000;
stat_blink_status = true;
stat_displayed++;
renderMenu();
}
@ -969,7 +1024,8 @@ void readButtons() {
else { //Left
if (!menuUsed && varioState == false) {
if (menu.getCurrent().getShortkey() == MENU_STAT && stat_displayed > 1) {
stat_blink_status = false;
get_time2 += 1000;
stat_blink_status = true;
stat_displayed--;
renderMenu();
}
@ -981,8 +1037,8 @@ void readButtons() {
else if (varioState == true)
renderVolume(MENU_LEFT);
}
knobPosition = newKnobPosition;
}
positionLeft = newLeft;
}
//if button enter is pressed
@ -1010,4 +1066,3 @@ void readButtons() {
lastEnterState = reading;
}//end read button

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