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esp32-nmea2000-obp60
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Fix undervoltage detection

This commit is contained in:
norbert-walter 2024-04-25 22:11:44 +02:00
parent 81cee58f14
commit e4af6f9978
3 changed files with 53 additions and 45 deletions
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2
lib/obp60task/OBP60Hardware.h
View File

@ -54,7 +54,7 @@
#define TONE4 4000 // 4000Hz
// Analog Input
#define OBP_ANALOG0 4 // Voltage power supplay
#define MIN_VOLTAGE 9.0 // Min voltage for under voltage detection (then goto deep sleep)
#define MIN_VOLTAGE 10.0 // Min voltage for under voltage detection (then goto deep sleep)
#define POWER_FAIL_TIME 2 // in [ms] Accept min voltage until 2 x 1ms (for under voltage gaps by engine start)
// Touch buttons
#define TOUCHTHRESHOLD 50000// Touch sensitivity, lower values more sensitiv

47
lib/obp60task/OBPSensorTask.cpp
View File

@ -19,47 +19,7 @@
#include "movingAvg.h" // Lib for moving average building
// Timer Interrupts for hardware functions
void underVoltageDetection();
Ticker Timer1(underVoltageDetection, 1); // Start Timer1 with maximum speed with 1ms
Ticker Timer2(blinkingFlashLED, 500); // Satrt Timer2 for flash LED all 500ms
// Undervoltage function for shutdown display
void underVoltageDetection(){
float actVoltage = (float(analogRead(OBP_ANALOG0)) * 3.3 / 4096 + 0.17) * 20; // V = 1/20 * Vin
long starttime = 0;
static bool undervoltage = false;
if(actVoltage < MIN_VOLTAGE){
if(undervoltage == false){
starttime = millis();
undervoltage = true;
}
if(millis() > starttime + POWER_FAIL_TIME){
Timer1.stop(); // Stop Timer1
/*
setPortPin(OBP_BACKLIGHT_LED, false); // Backlight Off
setFlashLED(false); // Flash LED Off
*/
buzzer(TONE4, 20); // Buzzer tone 4kHz 20ms
setPortPin(OBP_POWER_50, false); // Power rail 5.0V Off
// Shutdown EInk display
/*
display.setPartialWindow(0, 0, display.width(), display.height()); // Set partial update
display.fillScreen(GxEPD_WHITE); // Draw white sreen
display.nextPage(); // Partial update
display.powerOff(); // Power off
*/
// Stop system
while(true){
esp_deep_sleep_start(); // Deep Sleep without weakup. Weakup only after power cycle (restart).
}
}
}
else{
undervoltage = false;
}
}
Ticker Timer1(blinkingFlashLED, 500); // Satrt Timer2 for flash LED all 500ms
// Initialization for all sensors (RS232, I2C, 1Wire, IOs)
//####################################################################################
@ -112,7 +72,7 @@ void sensorTask(void *param){
if(uvoltage == true){
Timer1.start(); // Start Timer1 for undervoltage detection
}
Timer2.start(); // Start Timer2 for blinking LED
Timer1.start(); // Start Timer2 for blinking LED
// Direction settings for NMEA0183
String nmea0183Mode = api->getConfig()->getConfigItem(api->getConfig()->serialDirection, true)->asString();
@ -387,8 +347,7 @@ void sensorTask(void *param){
while (true){
delay(100); // Loop time 100ms
Timer1.update(); // Update for Timer1
Timer2.update(); // Update for Timer2
Timer1.update(); // Update for Timer2
if (millis() > starttime0 + 100)
{
starttime0 = millis();

49
lib/obp60task/obp60task.cpp
View File

@ -221,6 +221,48 @@ void registerAllPages(PageList &list){
list.add(&registerPageGenerator);
}
// Undervoltage detection for shutdown display
void underVoltageDetection(GwApi *api){
int textcolor = GxEPD_BLACK;
int pixelcolor = GxEPD_BLACK;
int bgcolor = GxEPD_WHITE;
// Read settings
String displaycolor = api->getConfig()->getConfigItem(api->getConfig()->displaycolor,true)->asString();
float vslope = uint(api->getConfig()->getConfigItem(api->getConfig()->vSlope,true)->asFloat());
float voffset = uint(api->getConfig()->getConfigItem(api->getConfig()->vOffset,true)->asFloat());
// Read supplay voltage
float actVoltage = (float(analogRead(OBP_ANALOG0)) * 3.3 / 4096 + 0.17) * 20; // V = 1/20 * Vin
actVoltage = actVoltage * vslope + voffset;
if(actVoltage < MIN_VOLTAGE){
// Switch off all power lines
setPortPin(OBP_BACKLIGHT_LED, false); // Backlight Off
setFlashLED(false); // Flash LED Off
buzzer(TONE4, 20); // Buzzer tone 4kHz 20ms
setPortPin(OBP_POWER_50, false); // Power rail 5.0V Off
// Shutdown EInk display
if(displaycolor == "Normal"){
textcolor = GxEPD_BLACK;
bgcolor = GxEPD_WHITE;
}
else{
textcolor = GxEPD_WHITE;
bgcolor = GxEPD_BLACK;
}
getdisplay().setPartialWindow(0, 0, getdisplay().width(), getdisplay().height()); // Set partial update
getdisplay().fillScreen(bgcolor); // Clear screen
getdisplay().setTextColor(textcolor);
getdisplay().setFont(&Ubuntu_Bold20pt7b);
getdisplay().setCursor(65, 150);
getdisplay().print("Undervoltage");
getdisplay().nextPage(); // Partial update
getdisplay().powerOff(); // Display power off
// Stop system
while(true){
esp_deep_sleep_start(); // Deep Sleep without weakup. Weakup only after power cycle (restart).
}
}
}
// OBP60 Task
//####################################################################################
void OBP60Task(GwApi *api){
@ -355,6 +397,7 @@ void OBP60Task(GwApi *api){
String backlightColor = api->getConfig()->getConfigItem(api->getConfig()->blColor,true)->asString();
CHSV color = colorMapping(backlightColor);
uint brightness = 2.55 * uint(api->getConfig()->getConfigItem(api->getConfig()->blBrightness,true)->asInt());
bool uvoltage = api->getConfig()->getConfigItem(api->getConfig()->underVoltage,true)->asBoolean();
// refreshmode defined in init section
// displaycolor defined in init section
@ -391,6 +434,12 @@ void OBP60Task(GwApi *api){
while (true){
delay(100); // Delay 100ms (loop time)
// Undervoltage detection
if(uvoltage == true){
underVoltageDetection(api);
}
if(millis() > starttime0 + 100){
starttime0 = millis();
commonData.data=shared->getSensorData();