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_P208_Nokia_LCD_5110.ino
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_P208_Nokia_LCD_5110.ino
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//#######################################################################################################
//################################## Plugin 208: NOKIA 5110 lcd #########################################
//#######################################################################################################
#include "_Plugin_Helper.h"
#ifdef USES_P208
// Working:
// - support different digit-size's.
// - Display Text via:
// 1. ESPEasy-Webinterface (Line-1-Line-x)
// 2. http-request:
// - BackLight on via httpcmd (http://ESP-IP/control?cmd=pcd8544cmd,blOn)
// - BackLight off via httpcmd (http://ESP-IP/control?cmd=pcd8544cmd,blOff)
// - Clear Display via httpcmd (http://ESP-IP/control?cmd=pcd8544cmd,clear)
// - Send Text via httpcmd (http://ESP-IP/control?cmd=pcd8544,1,Hello World!) // 1 : line#
// Send Text via http-request only works for the empty lines in ESPEasy-Webinterface!
// - Pin connections:
// SPI interface:
// Example of tested configuration:
// RST - => LCD_pin_1 reset connected to Vcc with 10k resistor
// CE GPIO-5 => LCD_pin_2 chip select
// DC GPIO-32 => LCD_pin_3 Data/Command select
// DIN GPIO-23 => LCD_pin_4 Serial data
// CLK GPIO-18 => LCD_pin_5 Serial clock out
// In hardware tab;
// - enable SPI;
// - Select VSPI:CLK=GPIO-18, MISO=GPIO-19, MOSI=GPIO-23
// (MISO not used)
//
// - Tested on
// - Hardware ESP32
// - ESPEasy-mega-20210223
// ToDo:
// - different digit-size within a line....
// - Choice of usable fonts on web-webform.
//
// Hardware note:
// It's often seen that pins are connected via (10k) risistors.
// Sometimes a screen will not work with these risistors. In that case, connect the display without resistors.
// That works well. However, I have no long-term experience with this.
#define PLUGIN_208
#define PLUGIN_ID_208 208
#define PLUGIN_NAME_208 "Display - LCD PCD8544 (Nokia 5110) [Testing]"
#define PLUGIN_VALUENAME1_208 "Backlight"
#define PLUGIN_VALUENAME2_208 "Contrast"
#define PLUGIN_VALUENAME3_208 "Rotation"
#include <Adafruit_GFX.h>
#include <Adafruit_PCD8544.h>
#define lcd_lines 6
#define Digits_per_template_line 48 // This value must be used at the function "displayText" declaration!
#define digits_per_display_line 14
Adafruit_PCD8544 *lcd3 = nullptr;
char html_input [lcd_lines][digits_per_display_line];
boolean Plugin_208(byte function, struct EventStruct *event, String& string){
boolean success = false;
switch (function)
{
case PLUGIN_DEVICE_ADD:{
Device[++deviceCount].Number = PLUGIN_ID_208 ;
Device[deviceCount].Type = DEVICE_TYPE_SPI3;
Device[deviceCount].VType = Sensor_VType::SENSOR_TYPE_SINGLE;
Device[deviceCount].Ports = 0;
Device[deviceCount].PullUpOption = false;
Device[deviceCount].InverseLogicOption = false;
Device[deviceCount].FormulaOption = false;
Device[deviceCount].ValueCount = 3;
Device[deviceCount].SendDataOption = false;
Device[deviceCount].TimerOption = true;
Device[deviceCount].TimerOptional = true;
break;
}
case PLUGIN_GET_DEVICEGPIONAMES: {
event->String1 = formatGpioName_output(F("LCD CE pin 2"));
event->String2 = formatGpioName_output(F("LCD DC pin 3"));
event->String3 = formatGpioName_output(F("LCD BL pin 7"));
break;
}
case PLUGIN_GET_DEVICENAME:{
string = F(PLUGIN_NAME_208);
break;
}
case PLUGIN_GET_DEVICEVALUENAMES:{
strcpy_P(ExtraTaskSettings.TaskDeviceValueNames[0], PSTR(PLUGIN_VALUENAME1_208));
strcpy_P(ExtraTaskSettings.TaskDeviceValueNames[1], PSTR(PLUGIN_VALUENAME2_208));
strcpy_P(ExtraTaskSettings.TaskDeviceValueNames[2], PSTR(PLUGIN_VALUENAME3_208));
break;
}
case PLUGIN_WEBFORM_LOAD:{
addFormNumericBox(F("Display Contrast(50-100):"), F("plugin_208_contrast"), PCONFIG(1));
int optionValues3[4] = { 0, 1, 2, 3 };
String options3[4] = { F("0"), F("90"), F("180"), F("270") };
addFormSelector(F("Display Rotation"), F("plugin_208_rotation"), 4, options3, optionValues3, PCONFIG(2));
String options4[2] = { F("OFF"), F("ON") };
int optionValues4[2] = { 0, 1 };
addFormSelector(F("Backlight"), F("plugin_208_backlight"), 2, options4, optionValues4, PCONFIG(0));
int optionValues5[3] = { 1,2,3 };
String options5[3] = { F("normal"), F("large"), F("x-large") };
addFormSelector(F("Char.size line-1"), F("plugin_208_charsize_line_1"), 3, options5, optionValues5, PCONFIG(3));
addFormSelector(F("Char.size line-2"), F("plugin_208_charsize_line_2"), 3, options5, optionValues5, PCONFIG(4));
addFormSelector(F("Char.size line-3"), F("plugin_208_charsize_line_3"), 3, options5, optionValues5, PCONFIG(5));
char deviceTemplate [lcd_lines][Digits_per_template_line];
LoadCustomTaskSettings(event->TaskIndex, (byte*)&deviceTemplate, sizeof(deviceTemplate));
for (byte varNr = 0; varNr < lcd_lines; varNr++)
{
addFormTextBox(String(F("Line ")) + (varNr + 1), String(F("Plugin_208_template")) + (varNr + 1), deviceTemplate[varNr], 80);
}
success = true;
break;
}
case PLUGIN_WEBFORM_SAVE:{
PCONFIG(0)= getFormItemInt(F("plugin_208_backlight"));
PCONFIG(1)= getFormItemInt(F("plugin_208_contrast"));
PCONFIG(2)= getFormItemInt(F("plugin_208_rotation"));
PCONFIG(3)= getFormItemInt(F("plugin_208_charsize_line_1"));
PCONFIG(4)= getFormItemInt(F("plugin_208_charsize_line_2"));
PCONFIG(5)= getFormItemInt(F("plugin_208_charsize_line_3"));
PCONFIG(6)= getFormItemInt(F("plugin_208_GPIO_CE"));
PCONFIG(7)= getFormItemInt(F("plugin_208_GPIO_DC"));
char deviceTemplate[lcd_lines][Digits_per_template_line];
for (byte varNr = 0; varNr < lcd_lines; varNr++)
{
char argc[25];
String arg = F("Plugin_208_template");
arg += varNr + 1;
arg.toCharArray(argc, 25);
String tmpString = web_server.arg(argc);
strncpy(deviceTemplate[varNr], tmpString.c_str(), sizeof(deviceTemplate[varNr]));
}
SaveCustomTaskSettings(event->TaskIndex, (byte*)&deviceTemplate, sizeof(deviceTemplate));
success = true;
break;
}
case PLUGIN_INIT:{
if (!lcd3)
{
lcd3 = new Adafruit_PCD8544(Settings.TaskDevicePin2[event->TaskIndex], Settings.TaskDevicePin1[event->TaskIndex], -1); // Adafruit_PCD8544 (DC, CE, -1)
}
// Setup lcd3 display
byte plugin1 = PCONFIG(2); // rotation
byte plugin2 = PCONFIG(1); // contrast
byte plugin4 = PCONFIG(0); // backlight_onoff
UserVar[event->BaseVarIndex+2]=plugin1;
UserVar[event->BaseVarIndex+1]=plugin2;
UserVar[event->BaseVarIndex]=! plugin4;
lcd3->begin();
lcd3->setContrast(30);
lcd3->setContrast(plugin2);
lcd3->setRotation(plugin1);
char deviceTemplate[lcd_lines][Digits_per_template_line];
LoadCustomTaskSettings(event->TaskIndex, (byte*)&deviceTemplate, sizeof(deviceTemplate));
displayText(deviceTemplate, event);
//displayText((byte**)&deviceTemplate, event);
lcd3->display();
setBacklight(event);
success = true;
break;
}
case PLUGIN_READ:{
char deviceTemplate[lcd_lines][Digits_per_template_line];
LoadCustomTaskSettings(event->TaskIndex, (byte*)&deviceTemplate, sizeof(deviceTemplate));
displayText(deviceTemplate, event);
//displayText((byte**)&deviceTemplate, event);
success = false;
break;
}
case PLUGIN_WRITE:{
String tmpString = string;
String StringToDisplay;
String line_content_ist;
String line_content_soll;
int argIndex = tmpString.indexOf(',');
if (argIndex){
tmpString = tmpString.substring(0, argIndex);
if (tmpString.equalsIgnoreCase(F("PCD8544"))){
if (event->Par1 <= 6 ){ // event->Par1 = row.
success = true;
argIndex = string.lastIndexOf(',');
char deviceTemplate [lcd_lines][Digits_per_template_line];
LoadCustomTaskSettings(event->TaskIndex, (byte*)&deviceTemplate, sizeof(deviceTemplate));
String linedefinition = deviceTemplate[event->Par1-1];
if (!linedefinition.length()){ // only if value is not definde in plugin-webform
line_content_ist = html_input[event->Par1-1];
line_content_soll = string.substring(argIndex + 1);
if (line_content_soll.length() < line_content_ist.length() ) {
for(int i=line_content_soll.length(); i < line_content_ist.length(); i++){
line_content_soll += " ";
}
}
//addLog(LOG_LEVEL_INFO, "5:"+ line_content_soll);
strncpy(html_input[event->Par1-1], line_content_soll.c_str(), sizeof(deviceTemplate[event->Par1-1]));
}
}
}
if (tmpString.equalsIgnoreCase(F("PCD8544CMD"))){
success = true;
argIndex = string.lastIndexOf(',');
tmpString = string.substring(argIndex + 1);
if (tmpString.equalsIgnoreCase(F("Clear"))){
addLog(LOG_LEVEL_INFO, F("Clear Display"));
lcd3->clearDisplay();
lcd3->display();
}
if (tmpString.equalsIgnoreCase(F("blOn"))){
success = true;
PCONFIG(0) = 1;
setBacklight(event);
}
if (tmpString.equalsIgnoreCase(F("blOff"))){
success = true;
PCONFIG(0) = 0;
setBacklight(event);
}
break;
}
}
}
} // switch (function)
return success;
}
void setBacklight(struct EventStruct *event) {
if (Settings.TaskDevicePin3[event->TaskIndex] != -1){
pinMode(Settings.TaskDevicePin3[event->TaskIndex], OUTPUT);
digitalWrite(Settings.TaskDevicePin3[event->TaskIndex], PCONFIG(0));
portStatusStruct newStatus;
const uint32_t key = createKey(1, Settings.TaskDevicePin3[event->TaskIndex]);
// WARNING: operator [] creates an entry in the map if key does not exist
newStatus = globalMapPortStatus[key];
newStatus.command = 1;
newStatus.mode = PIN_MODE_OUTPUT;
newStatus.state = PCONFIG(3);
savePortStatus(key, newStatus);
}
}
boolean displayText(char deviceTemplate[][48], struct EventStruct *event ){ // 48 must be equal to "#define Digits_per_template_line"
//boolean displayText( char &deviceTemplate, struct EventStruct *event ){ // 48 must be equal to "#define Digits_per_template_line"
String log = F("PCD8544: ");
String string ;
lcd3->clearDisplay();
lcd3->setTextColor(BLACK);
lcd3->setCursor(0,0);
for (byte x = 0; x < lcd_lines; x++)
{
if (x <= 3){
lcd3->setTextSize(PCONFIG(3+x));
}else{
lcd3->setTextSize(1);
}
String tmpString = deviceTemplate[x];
String newString;
if (tmpString.length()){
newString = parseTemplate(tmpString, false);
}else{
// webformline is empty use html input
newString = html_input[x];
// 1e time html_input[x] has trailing spaces to delete old digits from the previous html_input[x] displayed on de LCD
// Remove trailing spaces in html_input[x] for the next time
while (newString.endsWith(" ")) {
newString = newString.substring(0, newString.length() - 1);
}
int len = newString.length();
if (len > digits_per_display_line) {len = digits_per_display_line;}; // max len is len html_input[x]
newString = newString.substring(0,len);
strncpy(html_input[x], newString.c_str(), len);
}
lcd3->println(newString);
string+=newString+"\\";
}
log += String(F("displayed text: \"")) + String(string) + String(F("\""));
addLog(LOG_LEVEL_INFO, log);
lcd3->display();
return true;
}
#endif // USES_P208