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ESP8266 support

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- add ESP8266 support
- add webpage
This commit is contained in:
nightflyer88
2019-01-16 17:29:07 +01:00
parent 6119f76e97
commit 2eab71461c
12 changed files with 640 additions and 52 deletions
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650
CG_scale.ino
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@@ -4,11 +4,12 @@
(c) 2019 by M. Lehmann
------------------------------------------------------------------
*/
#define CGSCALE_VERSION "1.0"
#define CGSCALE_VERSION "1.0.51"
/*
******************************************************************
history:
V1.1 beta ESP8266
V1.0 12.01.19 first release
@@ -51,6 +52,14 @@
#include <EEPROM.h>
#include <Wire.h>
// libraries for ESP8266 (NodeMCU 1.0 )
#ifdef ARDUINO_ESP8266_NODEMCU
#include <FS.h>
#include <ESP8266WiFi.h>
#include <WiFiClient.h>
#include <ESP8266WebServer.h>
#endif
// Settings in separate file
#include "settings.h"
@@ -59,6 +68,12 @@ HX711_ADC LoadCell_1(PIN_LOADCELL1_DOUT, PIN_LOADCELL1_PD_SCK);
HX711_ADC LoadCell_2(PIN_LOADCELL2_DOUT, PIN_LOADCELL2_PD_SCK);
HX711_ADC LoadCell_3(PIN_LOADCELL3_DOUT, PIN_LOADCELL3_PD_SCK);
// webserver constructor
#ifdef ARDUINO_ESP8266_NODEMCU
ESP8266WebServer server(80);
IPAddress apIP(ip[0], ip[1], ip[2], ip[3]);
#endif
// serial menu
enum
{
@@ -73,12 +88,15 @@ enum
MENU_LOADCELL1_CALIBRATION_FACTOR,
MENU_LOADCELL2_CALIBRATION_FACTOR,
MENU_LOADCELL3_CALIBRATION_FACTOR,
MENU_RESISTOR_R1,
MENU_RESISTOR_R2,
MENU_BATTERY_MEASUREMENT,
MENU_SHOW_ACTUAL,
MENU_RESET_DEFAULT
};
// EEprom parameter addresses
#define EEPROM_SIZE 120
enum
{
P_NUMBER_LOADCELLS = 1,
@@ -90,7 +108,9 @@ enum
P_LOADCELL3_CALIBRATION_FACTOR = P_LOADCELL2_CALIBRATION_FACTOR + sizeof(float),
P_ENABLE_BATVOLT = P_LOADCELL3_CALIBRATION_FACTOR + sizeof(float),
P_REF_WEIGHT = P_ENABLE_BATVOLT + sizeof(float),
P_REF_CG = P_REF_WEIGHT + sizeof(float)
P_REF_CG = P_REF_WEIGHT + sizeof(float),
P_RESISTOR_R1 = P_REF_CG + sizeof(float),
P_RESISTOR_R2 = P_RESISTOR_R1 + sizeof(float)
};
// battery image 12x6
@@ -126,7 +146,7 @@ static const unsigned char CGtransImage[] U8X8_PROGMEM = {
};
// set default text
static const String PROGMEM newValueText = "Set new value:";
static const String newValueText = "Set new value:";
// load default values
uint8_t nLoadcells = NUMBER_LOADCELLS;
@@ -136,6 +156,8 @@ float distanceX3 = DISTANCE_X3;
float calFactorLoadcell1 = LOADCELL1_CALIBRATION_FACTOR;
float calFactorLoadcell2 = LOADCELL2_CALIBRATION_FACTOR;
float calFactorLoadcell3 = LOADCELL3_CALIBRATION_FACTOR;
float resistorR1 = RESISTOR_R1;
float resistorR2 = RESISTOR_R2;
bool enableBatVolt = ENABLE_VOLTAGE;
float refWeight = REF_WEIGHT;
float refCG = REF_CG;
@@ -147,9 +169,12 @@ float weightLoadCell3 = 0;
float lastWeightLoadCell1 = 0;
float lastWeightLoadCell2 = 0;
float lastWeightLoadCell3 = 0;
float weightTotal = 0;
float CG_length = 0;
float CG_trans = 0;
float batVolt = 0;
unsigned long lastTimeMenu = 0;
unsigned long lastTimeLoadcell = 0;
bool displayInit = false;
bool updateMenu = true;
int menuPage = 0;
@@ -158,27 +183,160 @@ int menuPage = 0;
void(* resetCPU) (void) = 0;
// save calibration factors
// save values to eeprom
void saveLoadcells() {
EEPROM.put(P_NUMBER_LOADCELLS, nLoadcells);
#ifdef ARDUINO_ESP8266_NODEMCU
EEPROM.commit();
#endif
}
void saveDistanceX1() {
EEPROM.put(P_DISTANCE_X1, distanceX1);
#ifdef ARDUINO_ESP8266_NODEMCU
EEPROM.commit();
#endif
}
void saveDistanceX2() {
EEPROM.put(P_DISTANCE_X2, distanceX2);
#ifdef ARDUINO_ESP8266_NODEMCU
EEPROM.commit();
#endif
}
void saveDistanceX3() {
EEPROM.put(P_DISTANCE_X3, distanceX3);
#ifdef ARDUINO_ESP8266_NODEMCU
EEPROM.commit();
#endif
}
void saveRefWeight() {
EEPROM.put(P_REF_WEIGHT, refWeight);
#ifdef ARDUINO_ESP8266_NODEMCU
EEPROM.commit();
#endif
}
void saveRefCG() {
EEPROM.put(P_REF_CG, refCG);
#ifdef ARDUINO_ESP8266_NODEMCU
EEPROM.commit();
#endif
}
void saveCalFactor1() {
LoadCell_1.setCalFactor(calFactorLoadcell1);
EEPROM.put(P_LOADCELL1_CALIBRATION_FACTOR, calFactorLoadcell1);
#ifdef ARDUINO_ESP8266_NODEMCU
EEPROM.commit();
#endif
}
void saveCalFactor2() {
LoadCell_2.setCalFactor(calFactorLoadcell2);
EEPROM.put(P_LOADCELL2_CALIBRATION_FACTOR, calFactorLoadcell2);
#ifdef ARDUINO_ESP8266_NODEMCU
EEPROM.commit();
#endif
}
void saveCalFactor3() {
LoadCell_3.setCalFactor(calFactorLoadcell3);
EEPROM.put(P_LOADCELL3_CALIBRATION_FACTOR, calFactorLoadcell3);
#ifdef ARDUINO_ESP8266_NODEMCU
EEPROM.commit();
#endif
}
void saveResistorR1() {
EEPROM.put(P_RESISTOR_R1, resistorR1);
#ifdef ARDUINO_ESP8266_NODEMCU
EEPROM.commit();
#endif
}
void saveResistorR2() {
EEPROM.put(P_RESISTOR_R2, resistorR2);
#ifdef ARDUINO_ESP8266_NODEMCU
EEPROM.commit();
#endif
}
void saveEnableBatVolt() {
EEPROM.put(P_ENABLE_BATVOLT, enableBatVolt);
#ifdef ARDUINO_ESP8266_NODEMCU
EEPROM.commit();
#endif
}
void auto_calibrate() {
Serial.print(F("Autocalibration is running"));
for (int i = 0; i <= 20; i++) {
Serial.print(F("."));
delay(100);
}
// calculate weight
float toWeightLoadCell2 = ((refCG - distanceX1) * refWeight) / distanceX2;
float toWeightLoadCell1 = refWeight - toWeightLoadCell2;
float toWeightLoadCell3 = 0;
if (nLoadcells > 2) {
toWeightLoadCell1 = toWeightLoadCell1 / 2;
toWeightLoadCell3 = toWeightLoadCell1;
}
// calculate calibration factors
calFactorLoadcell1 = calFactorLoadcell1 / (toWeightLoadCell1 / weightLoadCell1);
calFactorLoadcell2 = calFactorLoadcell2 / (toWeightLoadCell2 / weightLoadCell2);
if (nLoadcells > 2) {
calFactorLoadcell3 = calFactorLoadcell3 / (toWeightLoadCell3 / weightLoadCell3);
}
saveCalFactor1();
saveCalFactor2();
saveCalFactor3();
// finish
Serial.println(F("done"));
}
void setup() {
#ifdef ARDUINO_ESP8266_NODEMCU
// init webserver
WiFi.mode(WIFI_AP);
WiFi.softAPConfig(apIP, apIP, IPAddress(255, 255, 255, 0));
WiFi.softAP(ssid, password);
server.begin();
server.on("/", main_page);
server.on("/index.html", main_page);
server.on("/settings", settings_page);
server.on("/settings.png", settingsImg);
server.on("/weight.png", weightImg);
server.on("/cg.png", cgImg);
server.on("/cglr.png", cgLRimg);
server.on("/battery.png", batteryImg);
server.on("/CG_scale_mechanics.png", mechanicsImg);
server.on("/bootstrap.min.css", bootstrap);
server.on("bootstrap.min.css", bootstrap);
server.on("/popper.min.js", popper);
server.on("/bootstrap.min.js", bootstrapmin);
server.on("bootstrap.min.js", bootstrapmin);
SPIFFS.begin();
EEPROM.begin(EEPROM_SIZE);
#endif
// init OLED display
oledDisplay.begin();
oledDisplay.firstPage();
@@ -237,25 +395,44 @@ void setup() {
EEPROM.get(P_REF_CG, refCG);
}
if (EEPROM.read(P_RESISTOR_R1) != 0xFF) {
EEPROM.get(P_RESISTOR_R1, resistorR1);
}
if (EEPROM.read(P_RESISTOR_R2) != 0xFF) {
EEPROM.get(P_RESISTOR_R2, resistorR2);
}
// init Loadcells
LoadCell_1.begin();
LoadCell_2.begin();
LoadCell_3.begin();
if (nLoadcells > 2) {
LoadCell_3.begin();
}
// tare
while (!LoadCell_1.startMultiple(STABILISINGTIME) && !LoadCell_2.startMultiple(STABILISINGTIME) && !LoadCell_3.startMultiple(STABILISINGTIME)) {
if (nLoadcells > 2) {
while (!LoadCell_1.startMultiple(STABILISINGTIME) && !LoadCell_2.startMultiple(STABILISINGTIME) && !LoadCell_3.startMultiple(STABILISINGTIME)) {
}
} else {
while (!LoadCell_1.startMultiple(STABILISINGTIME) && !LoadCell_2.startMultiple(STABILISINGTIME)) {
}
}
// set calibration factor
LoadCell_1.setCalFactor(calFactorLoadcell1);
LoadCell_2.setCalFactor(calFactorLoadcell2);
LoadCell_3.setCalFactor(calFactorLoadcell3);
if (nLoadcells > 2) {
LoadCell_3.setCalFactor(calFactorLoadcell3);
}
// stabilize scale values
for (int i = 0; i <= 5; i++) {
LoadCell_1.update();
LoadCell_2.update();
LoadCell_3.update();
if (nLoadcells > 2) {
LoadCell_3.update();
}
delay(200);
}
@@ -269,7 +446,9 @@ void loop() {
LoadCell_1.update();
LoadCell_2.update();
LoadCell_3.update();
if (nLoadcells > 2) {
LoadCell_3.update();
}
// update loadcell values
@@ -299,11 +478,6 @@ void loop() {
if ((millis() - lastTimeMenu) > UPDATE_INTERVAL_OLED_MENU) {
lastTimeMenu = millis();
float weightTotal;
float CG_length = 0;
float CG_trans = 0;
float batVolt = 0;
// total model weight
weightTotal = weightLoadCell1 + weightLoadCell2 + weightLoadCell3;
if (weightTotal < MINIMAL_TOTAL_WEIGHT && weightTotal > MINIMAL_TOTAL_WEIGHT * -1) {
@@ -318,11 +492,14 @@ void loop() {
if (nLoadcells > 2) {
CG_trans = (distanceX3 / 2) - (((weightLoadCell1 + weightLoadCell2 / 2) * distanceX3) / weightTotal);
}
}else{
CG_length = 0;
CG_trans = 0;
}
// read battery voltage
if (enableBatVolt) {
batVolt = (analogRead(VOLTAGE_PIN) / 1024.0) * V_REF * (float(RESISTOR_R1 + RESISTOR_R2) / RESISTOR_R2) / 1000.0;
batVolt = (analogRead(VOLTAGE_PIN) / 1024.0) * V_REF * ((resistorR1 + resistorR2) / resistorR2) / 1000.0;
}
// print to display
@@ -389,66 +566,43 @@ void loop() {
break;
case MENU_LOADCELLS:
nLoadcells = Serial.parseInt();
EEPROM.put(P_NUMBER_LOADCELLS, nLoadcells);
saveLoadcells();
menuPage = 0;
updateMenu = true;
break;
case MENU_DISTANCE_X1:
distanceX1 = Serial.parseFloat();
EEPROM.put(P_DISTANCE_X1, distanceX1);
saveDistanceX1();
menuPage = 0;
updateMenu = true;
break;
case MENU_DISTANCE_X2:
distanceX2 = Serial.parseFloat();
EEPROM.put(P_DISTANCE_X2, distanceX2);
saveDistanceX2();
menuPage = 0;
updateMenu = true;
break;
case MENU_DISTANCE_X3:
distanceX3 = Serial.parseFloat();
EEPROM.put(P_DISTANCE_X3, distanceX3);
saveDistanceX3();
menuPage = 0;
updateMenu = true;
break;
case MENU_REF_WEIGHT:
refWeight = Serial.parseFloat();
EEPROM.put(P_REF_WEIGHT, refWeight);
saveRefWeight();
menuPage = 0;
updateMenu = true;
break;
case MENU_REF_CG:
refCG = Serial.parseFloat();
EEPROM.put(P_REF_CG, refCG);
saveRefCG();
menuPage = 0;
updateMenu = true;
break;
case MENU_AUTO_CALIBRATE:
if (Serial.read() == 'J') {
Serial.print(F("Autocalibration is running"));
for (int i = 0; i <= 20; i++) {
Serial.print(F("."));
delay(100);
}
// calculate weight
float toWeightLoadCell2 = ((refCG - distanceX1) * refWeight) / distanceX2;
float toWeightLoadCell1 = refWeight - toWeightLoadCell2;
float toWeightLoadCell3 = 0;
if (nLoadcells > 2) {
toWeightLoadCell1 = toWeightLoadCell1 / 2;
toWeightLoadCell3 = toWeightLoadCell1;
}
// calculate calibration factors
calFactorLoadcell1 = calFactorLoadcell1 / (toWeightLoadCell1 / weightLoadCell1);
calFactorLoadcell2 = calFactorLoadcell2 / (toWeightLoadCell2 / weightLoadCell2);
if (nLoadcells > 2) {
calFactorLoadcell3 = calFactorLoadcell3 / (toWeightLoadCell3 / weightLoadCell3);
}
saveCalFactor1();
saveCalFactor2();
saveCalFactor3();
// finish
Serial.println(F("done"));
auto_calibrate();
menuPage = 0;
updateMenu = true;
}
@@ -471,13 +625,25 @@ void loop() {
menuPage = 0;
updateMenu = true;
break;
case MENU_RESISTOR_R1:
resistorR1 = Serial.parseFloat();
saveResistorR1();
menuPage = 0;
updateMenu = true;
break;
case MENU_RESISTOR_R2:
resistorR2 = Serial.parseFloat();
saveResistorR2();
menuPage = 0;
updateMenu = true;
break;
case MENU_BATTERY_MEASUREMENT:
if (Serial.read() == 'J') {
enableBatVolt = true;
} else {
enableBatVolt = false;
}
EEPROM.put(P_ENABLE_BATVOLT, enableBatVolt);
saveEnableBatVolt();
menuPage = 0;
updateMenu = true;
break;
@@ -490,10 +656,13 @@ void loop() {
//chr = Serial.read();
if (Serial.read() == 'J') {
// reset eeprom
for (int i = 0; i < 100; i++) {
for (int i = 0; i < EEPROM_SIZE; i++) {
EEPROM.write(i, 0xFF);
}
Serial.end();
#ifdef ARDUINO_ESP8266_NODEMCU
EEPROM.commit();
#endif
resetCPU();
}
menuPage = 0;
@@ -530,13 +699,17 @@ void loop() {
Serial.print(calFactorLoadcell2);
Serial.print(F(")\n10 - Set calibration factor of load cell 3 ("));
Serial.print(calFactorLoadcell3);
Serial.print(F(")\n11 - Enable battery voltage measurement ("));
Serial.print(F(")\n11 - Set value of resistor R1 ("));
Serial.print(resistorR1);
Serial.print(F("ohm)\n12 - Set value of resistor R2 ("));
Serial.print(resistorR2);
Serial.print(F("ohm)\n13 - Enable battery voltage measurement ("));
if (enableBatVolt) {
Serial.print(F("enabled)\n"));
} else {
Serial.print(F("disabled)\n"));
}
Serial.print(F("12 - Show actual values\n13 - Reset to factory defaults\n\n"));
Serial.print(F("14 - Show actual values\n15 - Reset to factory defaults\n\n"));
Serial.print(F("Please choose the menu number:"));
updateMenu = false;
break;
@@ -603,6 +776,18 @@ void loop() {
Serial.print(newValueText);
updateMenu = false;
break;
case MENU_RESISTOR_R1:
Serial.print(F("\n\nValue of resistor R1: "));
Serial.println(resistorR1);
Serial.print(newValueText);
updateMenu = false;
break;
case MENU_RESISTOR_R2:
Serial.print(F("\n\nValue of resistor R2: "));
Serial.println(resistorR2);
Serial.print(newValueText);
updateMenu = false;
break;
case MENU_BATTERY_MEASUREMENT:
Serial.print(F("\n\nEnable battery voltage measurement (J/N)?\n"));
updateMenu = false;
@@ -642,4 +827,369 @@ void loop() {
updateMenu = true;
}
}
#ifdef ARDUINO_ESP8266_NODEMCU
server.handleClient();
#endif
}
#ifdef ARDUINO_ESP8266_NODEMCU
void main_page()
{
char buff[8];
String webPage = "<!doctype html>";
webPage += "<html lang=\"en\">";
webPage += "<head>";
webPage += "<meta charset=\"utf-8\">";
webPage += "<meta name=\"viewport\" content=\"width=device-width, initial-scale=1, shrink-to-fit=no\">";
webPage += "<meta name=\"description\" content=\"\">";
webPage += "<meta name=\"author\" content=\"\">";
webPage += "<link rel=\"icon\" href=\"/favicon.ico\">";
webPage += "<title>CG scale by M. Lehmann</title>";
webPage += "<link href=\"/bootstrap.min.css\" rel=\"stylesheet\">";
webPage += "<link href=\"navbar-top-fixed.css\" rel=\"stylesheet\">";
webPage += "<meta http-equiv=\"refresh\" content=\"";
webPage += REFRESH_TIME;
webPage += "\">";
webPage += "</head>";
webPage += "<body>";
webPage += "<nav class=\"navbar navbar-dark fixed-top bg-dark\">";
webPage += "<div class=\"container-fluid\">";
webPage += "<div class=\"navbar-header\">";
webPage += "<a class=\"navbar-brand\" href=\"#\">";
webPage += ssid;
webPage += "</a>";
webPage += "</div>";
webPage += "<ul class=\"nav navbar-nav navbar-right\">";
webPage += "<button type=\"button\" onclick=\"location.href = '/settings'\" class=\"btn btn-danger\">";
webPage += "<img src=\"settings.png\" alt=\"\" style=\"width:auto;height:30px\">";
webPage += "</button>";
webPage += "</ul>";
webPage += "</div>";
webPage += "</nav>";
webPage += "<br><br><br>";
webPage += "<main role=\"main\" class=\"container\">";
webPage += "<div class=\"jumbotron\">";
// print weight
webPage += "<div class=\"container\">";
webPage += "<div class=\"row mt-3\">";
webPage += "<div class=\"col-xs-6\"><img src=\"weight.png\" class=\"pull-left mr-4\" alt=\"weight\" style=\"width:auto;height:50px\"></div>";
webPage += "<div class=\"col-xs-6 d-flex align-items-center\"><font size=\"6\"> ";
dtostrf(weightTotal, 5, 1, buff);
webPage += buff;
webPage += "g</div>";
webPage += "</div>";
webPage += "</div>";
// print cg
webPage += "<div class=\"container\">";
webPage += "<div class=\"row mt-3\">";
webPage += "<div class=\"col-xs-6\"><img src=\"cg.png\" class=\"pull-left mr-4\" alt=\"weight\" style=\"width:auto;height:50px\"></div>";
webPage += "<div class=\"col-xs-6 d-flex align-items-center\"><font size=\"6\"> ";
dtostrf(CG_length, 5, 1, buff);
webPage += buff;
webPage += "mm</div>";
webPage += "</div>";
webPage += "</div>";
// print cg trans
if (nLoadcells > 2) {
//webPage += "<br>";
webPage += "<div class=\"container\">";
webPage += "<div class=\"row mt-3\">";
webPage += "<div class=\"col-xs-6\"><img src=\"cglr.png\" class=\"pull-left mr-4\" alt=\"weight\" style=\"width:auto;height:50px\"></div>";
webPage += "<div class=\"col-xs-6 d-flex align-items-center\"><font size=\"6\"> ";
dtostrf(CG_trans, 5, 1, buff);
webPage += buff;
webPage += "mm</div>";
webPage += "</div>";
webPage += "</div>";
}
// print battery
if (enableBatVolt) {
//webPage += "<br>";
webPage += "<div class=\"container\">";
webPage += "<div class=\"row mt-3\">";
webPage += "<div class=\"col-xs-6\"><img src=\"battery.png\" class=\"pull-left mr-4\" alt=\"weight\" style=\"width:auto;height:50px\"></div>";
webPage += "<div class=\"col-xs-6 d-flex align-items-center\"><font size=\"6\"> ";
webPage += batVolt;
webPage += "V</div>";
webPage += "</div>";
webPage += "</div>";
}
webPage += "</div>";
webPage += "</main>";
webPage += "<p><font size=\"2\"><center>(c) 2019 M. Lehmann - Version: ";
webPage += CGSCALE_VERSION;
webPage += "</center></font></p>";
webPage += "<script src=\"/bootstrap.min.js\"></script>";
webPage += "</body>";
webPage += "</html>";
server.send(200, "text/html", webPage);
}
void settings_page()
{
if ( server.hasArg("nLoadcells")) {
nLoadcells = server.arg("nLoadcells").toFloat();
saveLoadcells();
}
if ( server.hasArg("distanceX1")) {
distanceX1 = server.arg("distanceX1").toFloat();
saveDistanceX1();
}
if ( server.hasArg("distanceX2")) {
distanceX2 = server.arg("distanceX2").toFloat();
saveDistanceX2();
}
if ( server.hasArg("distanceX3")) {
distanceX3 = server.arg("distanceX3").toFloat();
saveDistanceX3();
}
if ( server.hasArg("refWeight")) {
refWeight = server.arg("refWeight").toFloat();
saveRefWeight();
}
if ( server.hasArg("refCG")) {
refCG = server.arg("refCG").toFloat();
saveRefCG();
}
if ( server.hasArg("calFactorLoadcell1")) {
calFactorLoadcell1 = server.arg("calFactorLoadcell1").toFloat();
saveCalFactor1();
}
if ( server.hasArg("calFactorLoadcell2")) {
calFactorLoadcell2 = server.arg("calFactorLoadcell2").toFloat();
saveCalFactor2();
}
if ( server.hasArg("calFactorLoadcell3")) {
calFactorLoadcell3 = server.arg("calFactorLoadcell3").toFloat();
saveCalFactor3();
}
if ( server.hasArg("resistorR1")) {
resistorR1 = server.arg("resistorR1").toFloat();
saveResistorR1();
}
if ( server.hasArg("resistorR2")) {
resistorR2 = server.arg("resistorR2").toFloat();
saveResistorR2();
}
if ( server.hasArg("enableBatVolt")) {
if (server.arg("enableBatVolt") == "ON") {
enableBatVolt = true;
} else {
enableBatVolt = false;
}
}
if ( server.hasArg("calibrate")) {
auto_calibrate();
}
String webPage = "<!doctype html>";
webPage += "<html lang=\"en\">";
webPage += "<head>";
webPage += "<meta charset=\"utf-8\">";
webPage += "<meta name=\"viewport\" content=\"width=device-width, initial-scale=1, shrink-to-fit=no\">";
webPage += "<meta name=\"description\" content=\"\">";
webPage += "<meta name=\"author\" content=\"\">";
webPage += "<link rel=\"icon\" href=\"/favicon.ico\">";
webPage += "<title>CG scale by M. Lehmann</title>";
webPage += "<link href=\"/bootstrap.min.css\" rel=\"stylesheet\">";
webPage += "<link href=\"navbar-top-fixed.css\" rel=\"stylesheet\">";
webPage += "</head>";
webPage += "<body>";
webPage += "<nav class=\"navbar navbar-dark fixed-top bg-dark\">";
webPage += "<div class=\"container-fluid\">";
webPage += "<div class=\"navbar-header\">";
webPage += "<a class=\"navbar-brand\" href=\"#\">";
webPage += ssid;
webPage += "</a>";
webPage += "</div>";
webPage += "<ul class=\"nav navbar-nav navbar-right\">";
webPage += "<button type=\"button\" onclick=\"location.href = '/'\" class=\"btn btn-danger\">Home</button>";
webPage += "</ul>";
webPage += "</div>";
webPage += "</nav>";
webPage += "<br><br><br>";
webPage += "<main role=\"main\" class=\"container\">";
webPage += "<form action=\"/settings\" id=\"saveForm\">";
webPage += "<div class=\"form-group\">";
webPage += "<label>Number of load cells:</label>";
webPage += "<select class=\"form-control\" name=\"nLoadcells\">";
if (nLoadcells == 2) {
webPage += "<option selected>2</option>";
webPage += "<option>3</option>";
}
if (nLoadcells == 3) {
webPage += "<option>2</option>";
webPage += "<option selected>3</option>";
}
webPage += "</select>";
webPage += "</div>";
webPage += "<div class=\"form-group\">";
webPage += "<label>Distance X1 [mm]:</label>";
webPage += "<input type=\"text\" class=\"form-control\" name=\"distanceX1\" value=\"";
webPage += distanceX1;
webPage += "\">";
webPage += "</div>";
webPage += "<div class=\"form-group\">";
webPage += "<label>Distance X2 [mm]:</label>";
webPage += "<input type=\"text\" class=\"form-control\" name=\"distanceX2\" value=\"";
webPage += distanceX2;
webPage += "\">";
webPage += "</div>";
webPage += "<div class=\"form-group\">";
webPage += "<label>Distance X3 [mm]:</label>";
webPage += "<input type=\"text\" class=\"form-control\" name=\"distanceX3\" value=\"";
webPage += distanceX3;
webPage += "\">";
webPage += "</div>";
webPage += "<div class=\"form-group\">";
webPage += "<label>Reference weight [g]:</label>";
webPage += "<input type=\"text\" class=\"form-control\" name=\"refWeight\" value=\"";
webPage += refWeight;
webPage += "\">";
webPage += "</div>";
webPage += "<div class=\"form-group\">";
webPage += "<label>Reference CG [mm]:</label>";
webPage += "<input type=\"text\" class=\"form-control\" name=\"refCG\" value=\"";
webPage += refCG;
webPage += "\">";
webPage += "</div>";
webPage += "<div class=\"form-group\">";
webPage += "<label>Calibration factor of load cell 1:</label>";
webPage += "<input type=\"text\" class=\"form-control\" name=\"calFactorLoadcell1\" value=\"";
webPage += calFactorLoadcell1;
webPage += "\">";
webPage += "</div>";
webPage += "<div class=\"form-group\">";
webPage += "<label>Calibration factor of load cell 2:</label>";
webPage += "<input type=\"text\" class=\"form-control\" name=\"calFactorLoadcell2\" value=\"";
webPage += calFactorLoadcell2;
webPage += "\">";
webPage += "</div>";
webPage += "<div class=\"form-group\">";
webPage += "<label>Calibration factor of load cell 3:</label>";
webPage += "<input type=\"text\" class=\"form-control\" name=\"calFactorLoadcell3\" value=\"";
webPage += calFactorLoadcell3;
webPage += "\">";
webPage += "</div>";
webPage += "<div class=\"form-group\">";
webPage += "<label>Value of resistor R1 [ohm]:</label>";
webPage += "<input type=\"text\" class=\"form-control\" name=\"resistorR1\" value=\"";
webPage += resistorR1;
webPage += "\">";
webPage += "</div>";
webPage += "<div class=\"form-group\">";
webPage += "<label>Value of resistor R2 [ohm]:</label>";
webPage += "<input type=\"text\" class=\"form-control\" name=\"resistorR2\" value=\"";
webPage += resistorR2;
webPage += "\">";
webPage += "</div>";
webPage += "<div class=\"form-group\">";
webPage += "<label>Voltage measurement:</label>";
webPage += "<select class=\"form-control\" name=\"enableBatVolt\">";
if (enableBatVolt) {
webPage += "<option selected>ON</option>";
webPage += "<option>OFF</option>";
} else {
webPage += "<option>ON</option>";
webPage += "<option selected>OFF</option>";
}
webPage += "</select>";
webPage += "</div>";
webPage += "</form>";
webPage += "<div class=\"btn-group btn-group-lg\">";
webPage += "<button type=\"button submit\" class=\"btn btn-success btn-lg\" form=\"saveForm\">save parameters</button>";
webPage += "<form action=\"/settings\" method=\"POST\"><button type=\"button submit\" class=\"btn btn-primary btn-lg\" name=\"calibrate\" value=\"1\">auto calibrate</button></form>";
webPage += "</div>";
webPage += "<img src=\"CG_scale_mechanics.png\" class=\"pull-left mr-4\" alt=\"mechanics\" style=\"width:100%\">";
webPage += "</main>";
webPage += "<p><font size=\"2\"><center>(c) 2019 M. Lehmann - Version: ";
webPage += CGSCALE_VERSION;
webPage += "</center></font></p>";
webPage += "<script src=\"/bootstrap.min.js\"></script>";
webPage += "</body>";
webPage += "</html>";
server.send(200, "text/html", webPage);
}
void settingsImg()
{
File file = SPIFFS.open("/settings.png", "r");
size_t sent = server.streamFile(file, "text/css");
}
void weightImg()
{
File file = SPIFFS.open("/weight.png", "r");
size_t sent = server.streamFile(file, "text/css");
}
void cgImg()
{
File file = SPIFFS.open("/cg.png", "r");
size_t sent = server.streamFile(file, "text/css");
}
void cgLRimg()
{
File file = SPIFFS.open("/cglr.png", "r");
size_t sent = server.streamFile(file, "text/css");
}
void batteryImg()
{
File file = SPIFFS.open("/battery.png", "r");
size_t sent = server.streamFile(file, "text/css");
}
void mechanicsImg()
{
File file = SPIFFS.open("/CG_scale_mechanics.png", "r");
size_t sent = server.streamFile(file, "text/css");
}
void bootstrap()
{
File file = SPIFFS.open("/bootstrap.min.css.gz", "r");
size_t sent = server.streamFile(file, "text/css");
}
void popper()
{
File file = SPIFFS.open("/popper.min.js.gz", "r");
size_t sent = server.streamFile(file, "application/javascript");
}
void bootstrapmin()
{
File file = SPIFFS.open("/bootstrap.min.js.gz", "r");
size_t sent = server.streamFile(file, "application/javascript");
}
#endif

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42
settings.h
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@@ -44,6 +44,8 @@ CG scale with 3 Loadcells:
|---X1---|---------X2----------|
*/
#ifdef __AVR__ // if CPU is ATmega32u4 or Atmega328, use this pins
#define PIN_LOADCELL1_DOUT A2
#define PIN_LOADCELL1_PD_SCK A3
@@ -52,6 +54,18 @@ CG scale with 3 Loadcells:
#define PIN_LOADCELL3_DOUT A9
#define PIN_LOADCELL3_PD_SCK A10
#endif
#ifdef ARDUINO_ESP8266_NODEMCU // if CPU is ESP8266, use this pins
#define PIN_LOADCELL1_DOUT D6
#define PIN_LOADCELL1_PD_SCK D5
#define PIN_LOADCELL2_DOUT D2
#define PIN_LOADCELL2_PD_SCK D1
#define PIN_LOADCELL3_DOUT D8
#define PIN_LOADCELL3_PD_SCK D7
#endif
@@ -82,9 +96,15 @@ CG scale with 3 Loadcells:
// Please UNCOMMENT the display used
#ifdef __AVR__ // if CPU is ATmega32u4 or Atmega328, use this display
U8G2_SH1106_128X64_NONAME_1_HW_I2C oledDisplay(U8G2_R0, /* reset=*/ U8X8_PIN_NONE);
//U8G2_SSD1306_128X64_NONAME_1_HW_I2C oledDisplay(U8G2_R0, /* reset=*/ U8X8_PIN_NONE);
#endif
#ifdef ARDUINO_ESP8266_NODEMCU // if CPU is ESP8266, use this display
U8G2_SH1106_128X64_NONAME_1_HW_I2C oledDisplay(U8G2_R0, /* reset=*/ U8X8_PIN_NONE, /* clock=*/ D3, /* data=*/ D4);
//U8G2_SSD1306_128X64_NONAME_1_HW_I2C oledDisplay(U8G2_R0, /* reset=*/ U8X8_PIN_NONE, /* clock=*/ D3, /* data=*/ D4);
#endif
// **** Voltage measurement settings ****
@@ -93,14 +113,20 @@ U8G2_SH1106_128X64_NONAME_1_HW_I2C oledDisplay(U8G2_R0, /* reset=*/ U8X8_PIN_NON
#define ENABLE_VOLTAGE true
// analog input pin
#ifdef __AVR__ // if CPU is ATmega32u4 or Atmega328, use this pin
#define VOLTAGE_PIN A7
#endif
#ifdef ARDUINO_ESP8266_NODEMCU // if CPU is ESP8266, use this pin
#define VOLTAGE_PIN A0
#endif
// supply voltage
#define V_REF 5000 // set supply voltage from 1800 to 5500mV
// voltage divider
#define RESISTOR_R1 10000 // Ohms
#define RESISTOR_R2 10000 // Ohms
#define RESISTOR_R1 10000 // ohm
#define RESISTOR_R2 10000 // ohm
/*
voltage input
@@ -119,3 +145,15 @@ U8G2_SH1106_128X64_NONAME_1_HW_I2C oledDisplay(U8G2_R0, /* reset=*/ U8X8_PIN_NON
|
GND
*/
// **** Web server settings ****
// Wifi works as an access point
const char* ssid = "CG scale"; // wifi name
const char* password = ""; // wifi password
const char ip[4] = {1,1,1,1}; // default IP address
#define REFRESH_TIME 3 // [s], reload the main page