bobbycar/controller_teensy/include/display.h

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#ifndef _DISPLAY_H_
#define _DISPLAY_H_
#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
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#include <Fonts/FreeMonoBold18pt7b.h>
#include <Fonts/FreeSansBold9pt7b.h>
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#define SCREEN_WIDTH 128 // OLED display width, in pixels
#define SCREEN_HEIGHT 32 // OLED display height, in pixels
#define OLED_RESET -1 // Reset pin # (or -1 if sharing Arduino reset pin)
#define SCREEN_ADDRESS 0x3C ///< See datasheet for Address; 0x3D for 128x64, 0x3C for 128x32
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);
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uint8_t standingDisplayScreen=0;
#define NUM_STANDINGDISPLAYSCREEN 3
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#define DISPLAYSTANDSTILLTIME 5000
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bool display_init();
void display_update(ESCSerialComm& escFront, ESCSerialComm& escRear);
void display_drivingDisplay(ESCSerialComm& escFront, ESCSerialComm& escRear);
void display_standingDisplay(ESCSerialComm& escFront, ESCSerialComm& escRear);
void display_standingDisarmedDisplay(ESCSerialComm& escFront, ESCSerialComm& escRear);
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void display_debugDisplay(ESCSerialComm& escFront, ESCSerialComm& escRear);
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bool display_init(){
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if(!display.begin(SSD1306_SWITCHCAPVCC, SCREEN_ADDRESS)) {
Serial.println(F("SSD1306 allocation failed"));
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return false;
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}
display.clearDisplay();
display.setTextSize(1); // Normal 1:1 pixel scale
display.setTextColor(SSD1306_WHITE); // Draw white text
display.setCursor(0,0); // Start at top-left corner
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display.display();
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return true;
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}
void display_update(ESCSerialComm& escFront, ESCSerialComm& escRear){
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display.clearDisplay();
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/*
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display.setTextSize(1); // Normal 1:1 pixel scale
display.setTextColor(SSD1306_WHITE); // Draw white text
display.setCursor(0,0); // Start at top-left corner
display.print(F("Speed : ")); display.println((escFront.getMeanSpeed()+escRear.getMeanSpeed())/2.0);
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display.print(F("Thr: ")); display.print(throttle_pos);
display.print(F(" Brk : ")); display.println(brake_pos);
display.print(F("Current : ")); display.println(filtered_currentAll);
display.print(F("Vbat : ")); display.print(escFront.getFeedback_batVoltage());
display.print(F(" / ")); display.println(escRear.getFeedback_batVoltage());
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*/
if ( (error_brake_outofrange || error_throttle_outofrange || error_throttle_difftoohigh || error_ads_max_read_interval || error_sdfile_unavailable) && ((loopmillis/2000)%2==0)) {
//Error Messages
display.setFont();
display.setTextSize(1); // Normal 1:1 pixel scale
display.setTextColor(SSD1306_WHITE); // Draw white text
display.setCursor(0,0); // Start at top-left corner
display.print(F("Error!"));
display.println();
String errorstring="";
if (error_brake_outofrange) {
errorstring+="brake_outofrange\n";
}
if (error_throttle_outofrange) {
errorstring+="throttle_outofrange\n";
}
if (error_throttle_difftoohigh) {
errorstring+="throttle_difftoohigh\n";
}
if (error_ads_max_read_interval) {
errorstring+="ads_max_read_interval\n";
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}if (error_sdfile_unavailable) {
errorstring+="error_sdfile_unavailable\n";
}
display.print(errorstring);
}else{
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//Normal Display Routines here
if (armed) {
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if (loopmillis-last_notidle>DISPLAYSTANDSTILLTIME) {
display_standingDisplay(escFront,escRear);
}else{
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display_drivingDisplay(escFront,escRear);
//display_debugDisplay(escFront,escRear);
}
}else{
display_standingDisarmedDisplay(escFront,escRear);
}
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}
display.display();
}
void display_drivingDisplay(ESCSerialComm& escFront, ESCSerialComm& escRear) {
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//Display stuff here for when bobbycar is moving or was moving recently and is armed
//## Km/h Display
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display.setFont(&FreeMonoBold18pt7b);
display.setTextSize(1); // Normal 1:1 pixel scale
display.setTextColor(SSD1306_WHITE); // Draw white text
display.setCursor(0,SCREEN_HEIGHT-(SCREEN_HEIGHT-18)/2 - 3); // Start at top-left corner
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//float _speeddisplay=(escFront.getMeanSpeed()+escRear.getMeanSpeed())/2.0*3.6;
float _speeddisplay=minSpeedms*3.6;
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//_speeddisplay=(millis()/1000)%21; //debugging
char buf[8];
dtostrf(_speeddisplay,1,1,buf);
String strbuf=buf;
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if (strbuf.length()<4) { //pad spaces on the left
strbuf=" "+strbuf;
}
display.print(strbuf);
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display.setFont();
display.setCursor(SCREEN_WIDTH-25,SCREEN_HEIGHT-16);
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display.print("km/h");
//A
display.setCursor(SCREEN_WIDTH-37,1);
static float averaged_filtered_currentAll;
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#define CURRENT_FILTER 0.8
averaged_filtered_currentAll=averaged_filtered_currentAll*CURRENT_FILTER+(1-CURRENT_FILTER)*filtered_currentAll; //filter over time
float averaged_filtered_wattAll=averaged_filtered_currentAll*(escFront.getFeedback_batVoltage()+escRear.getFeedback_batVoltage())/2.0;
//dtostrf(averaged_filtered_currentAll,1,2,buf);
dtostrf(averaged_filtered_wattAll,1,0,buf);
strbuf=buf;
if (strbuf.length()<5) { //pad spaces on the left
strbuf=" "+strbuf;
}
display.print(strbuf);
//display.print("A");
display.print("W");
//## Trip / Current Consumed Display
display.setCursor(1,SCREEN_HEIGHT-7);
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//## Current
/*
dtostrf(min_filtered_currentAll,1,1,buf);
display.print("min:");
display.print((String)buf);
display.print("A max:");
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dtostrf(max_filtered_currentAll,1,1,buf);
display.print((String)buf);
display.print("A");
*/
//## Watt
dtostrf(min_filtered_wattAll,1,0,buf);
display.print((String)buf);
display.print(" / ");
dtostrf(max_filtered_wattAll,1,0,buf);
display.print((String)buf);
display.print("W ");
display.setCursor(SCREEN_WIDTH-6*6,SCREEN_HEIGHT-7);
dtostrf(max_meanSpeed*3.6,1,0,buf);
display.print((String)buf);
display.print("km/h");
}
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void display_debugDisplay(ESCSerialComm& escFront, ESCSerialComm& escRear) {
//Debug
display.setTextSize(2); // Normal 1:1 pixel scale
display.setFont();
display.setTextColor(SSD1306_WHITE); // Draw white text
char buf[8];
display.setCursor(1,0);
dtostrf(filtered_currentAll,1,3,buf);
display.print((String)buf);
display.print(" A > ");
display.println();
//all wheel getCMD
display.setTextSize(1);
display.setCursor(25,SCREEN_HEIGHT-8*2);
display.print(escFront.getCmdL());
display.setCursor(SCREEN_WIDTH-4*7-25,SCREEN_HEIGHT-8*2);
display.print(escFront.getCmdR());
display.setCursor(25,SCREEN_HEIGHT-8*1);
display.print(escRear.getCmdL());
display.setCursor(SCREEN_WIDTH-4*7-25,SCREEN_HEIGHT-8*1);
display.print(escRear.getCmdR());
/*
display.setTextSize(1);
display.setCursor(1,SCREEN_HEIGHT-8*2);
display.print("minCMD=");
display.print(min(min(min(escFront.getCmdL(),escFront.getCmdR()),escRear.getCmdL()),escRear.getCmdR()));
display.print(" thrpos=");
display.print(throttle_pos);
*/
}
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void display_standingDisplay(ESCSerialComm& escFront, ESCSerialComm& escRear) {
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//Display stuff here when ESCs are powered on and bobbycar is armed but was not moving for a while
double _displaytrip=trip;
//double _displaycurrent=currentConsumed;
double _displaywatthours=watthoursConsumed;
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bool _displayOverall= ((millis()/2500)%2==0); //switch based on time
char buf[8];
display.setFont();
display.setCursor(0,0);
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if (_displayOverall) { //alternate between this trip and overall trip
_displaytrip=overallTrip;
//_displaycurrent=overallCurrentConsumed;
_displaywatthours=overallWatthoursConsumed;
}
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//Row 1
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if (!_displayOverall) {
display.print(F("Vbat:")); display.print(escFront.getFeedback_batVoltage());
display.print(F("/")); display.print(escRear.getFeedback_batVoltage());
}else{
display.print(F("Vmin:")); display.print(min_voltage);
}
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display.print(" V");
display.println();
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//Row 2
//display.print(F("Temp:")); display.print(escFront.getFeedback_boardTemp());
//display.print(F("/")); display.print(escRear.getFeedback_boardTemp());
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display.print(F("T:")); display.print(temp_Front,0);
display.print(F("/")); display.print(temp_Rear,0);
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display.print(F("/")); display.print(temp_Air,0);
display.print(" C");
display.println();
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//Row 3
display.print(F("Trip:"));
dtostrf(_displaytrip,1,0,buf);
display.print((String)buf);
display.print("m ");
//dtostrf(_displaycurrent,1,2,buf);
dtostrf(_displaywatthours,1,2,buf);
display.print((String)buf);
//display.print(" Ah");
display.print("Wh");
display.println();
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//Row 4
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display.print(F(""));
//dtostrf( _displaytrip/1000/_displaycurrent ,1,2,buf);
dtostrf( _displaywatthours/_displaytrip*100,1,2,buf);
display.print((String)buf);
//display.print(" km/Ah");
display.print(" kWh/100km");
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if (_displayOverall){
display.print(" sum");
}
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display.println();
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}
void display_standingDisarmedDisplay(ESCSerialComm& escFront, ESCSerialComm& escRear) {
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//Displayed stuff here when escs are powered off / disconnected or bobbycar is not armed
char buf[8];
display.setFont();
display.setCursor(0,0);
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switch(standingDisplayScreen)
{
case 0:
//Quick overview of inputs and status
//Row1
if (getDatalogging()) {
display.print(getLogFilename());
}else{
display.print("LOG DISABLED");
}
display.print(F(" ")); display.print(loopmillis/1000);
display.print(F("s"));
display.println();
//Row2
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display.print(F("Throttle "));
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dtostrf(ads_throttle_A_raw,1,0,buf);
display.print((String)buf);
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display.print(F("/"));
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dtostrf(ads_throttle_B_raw,1,0,buf);
display.print((String)buf);
display.println();
//Row3
display.print("Brake ");
dtostrf(ads_brake_raw,1,0,buf);
display.print((String)buf);
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display.setCursor(8*10,2*8);
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dtostrf((escFront.getFeedback_batVoltage()+escRear.getFeedback_batVoltage())/2.0,1,1,buf);
display.print((String)buf);
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display.print(F("V"));
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display.println();
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//TODO: show deviation (and max deviation), show resulting throttle and brake pos
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/*display.print(" c=");
dtostrf(ads_control_raw,1,0,buf);
display.print((String)buf); */
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break;
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case 1:
//Trip Stats (trip / overall)
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//Row 1
display.print(F("Trip ")); display.print(trip,0); display.print(F(" / ")); display.print(overallTrip,0); display.print(F("m"));
display.println();
//Row 2
display.print(F("Curr ")); display.print(currentConsumed*1000,0); display.print(F(" / ")); display.print(overallCurrentConsumed*1000,0); display.print(F("mAh"));
display.println();
//Row 3
display.print(F("Pow ")); display.print(watthoursConsumed,0); display.print(F(" / ")); display.print(overallWatthoursConsumed,0); display.print(F("Wh"));
display.println();
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break;
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case 2:
//Configuration parameters
//Row 1
display.print(F("cmdred min=")); display.print(minimum_constant_cmd_reduce);
display.print(F(" p=")); display.print(brake_cmdreduce_proportional);
display.println();
//Row 2
display.print(F("brkI="));
dtostrf(startbrakecurrent,1,1,buf);
display.print((String)buf);
display.print("A");
display.print(F(" free="));
dtostrf(freewheel_break_factor,1,1,buf);
display.print((String)buf);
display.println();
//Row 3
display.print(F("thrmax=")); display.print(throttle_max);
display.print(F(" rev="));
dtostrf(reverse_speed,1,2,buf);
display.print((String)buf);
display.println();
break;
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}
//Put User Inputs in last row
//Row 4
display.setCursor(0,24);
if (button_start_state){
display.print("S");
}else{
display.print(" ");
}
if (control_buttonB){
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display.print("B");
}else{
display.print(" ");
}
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if (control_buttonA){
display.print("A");
}else{
display.print(" ");
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}
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if (escFront.getControllerConnected()){
display.print("F");
}else{
display.print(" ");
}
if (escRear.getControllerConnected()){
display.print("R");
}else{
display.print(" ");
}
display.setCursor(SCREEN_WIDTH-6*3,24);
display.print(standingDisplayScreen);
display.print("/"); display.print(NUM_STANDINGDISPLAYSCREEN-1);
}
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#endif