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dave
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new example for ESP32 using a LCD screen
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‎examples/esp32Lcd/Esp32Lcd.emf‎

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{
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"version": "1.00",
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"projectName": "/Users/dave/Documents/Arduino/tcLibraryDev/lib/tcMenu/examples/esp32Lcd/Esp32Lcd.emf",
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"author": "dave",
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"items": [
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{
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"parentId": 0,
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"type": "analogItem",
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"item": {
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"maxValue": 100,
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"offset": 0,
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"divisor": 1,
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"unitName": "%",
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"name": "Percentage",
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"variableName": "Percentage",
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"id": 1,
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"eepromAddress": -1,
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"readOnly": false,
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"localOnly": false,
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"visible": true
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}
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},
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{
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"parentId": 0,
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"type": "enumItem",
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"item": {
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"enumEntries": [
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"Apples",
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"Bananas",
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"Oranges",
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"Grapes"
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],
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"name": "Foods",
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"variableName": "Foods",
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"id": 2,
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"eepromAddress": -1,
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"readOnly": false,
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"localOnly": false,
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"visible": true
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}
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},
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{
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"parentId": 0,
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"type": "boolItem",
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"item": {
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"naming": "ON_OFF",
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"name": "Power",
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"variableName": "Peeled",
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"id": 3,
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"eepromAddress": -1,
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"readOnly": false,
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"localOnly": false,
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"visible": true
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}
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},
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{
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"parentId": 0,
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"type": "runtimeList",
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"item": {
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"initialRows": 0,
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"name": "MyList",
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"variableName": "MyList",
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"id": 4,
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"eepromAddress": -1,
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"functionName": "",
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"readOnly": false,
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"localOnly": false,
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"visible": true
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}
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},
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{
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"parentId": 0,
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"type": "rgbItem",
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"item": {
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"includeAlphaChannel": false,
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"name": "RGB",
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"variableName": "RGB",
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"id": 5,
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"eepromAddress": -1,
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"readOnly": false,
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"localOnly": false,
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"visible": true
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}
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}
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],
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"codeOptions": {
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"embeddedPlatform": "ARDUINO_ESP32",
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"lastDisplayUuid": "d4c84106-fa87-4024-b91e-053e17a52b8f",
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"lastInputUuid": "6dd87e7d-e751-4912-a70d-91793b1d3d87",
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"lastRemoteUuid": "2c101fec-1f7d-4ff3-8d2b-992ad41e7fcb",
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"lastThemeUuid": "850dc0a3-f534-47c2-94d8-1e64ff368a54",
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"applicationUUID": "7833942f-2ef4-486f-9713-045552b747e8",
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"applicationName": "Esp32Lcd",
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"lastProperties": [
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{
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"name": "LCD_WIDTH",
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"latestValue": "20",
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"subsystem": "DISPLAY"
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},
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{
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"name": "LCD_HEIGHT",
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"latestValue": "4",
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"subsystem": "DISPLAY"
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},
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{
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"name": "I2C_ADDRESS",
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"latestValue": "0x27",
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"subsystem": "DISPLAY"
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},
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{
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"name": "PIN_LAYOUT",
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"latestValue": "RS_RW_EN",
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"subsystem": "DISPLAY"
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},
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{
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"name": "WIRE_VARIABLE",
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"latestValue": "Wire",
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"subsystem": "DISPLAY"
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},
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{
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"name": "UNO_OR_FULL",
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"latestValue": "fullLcd",
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"subsystem": "DISPLAY"
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},
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{
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"name": "UPDATES_PER_SEC",
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"latestValue": "2",
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"subsystem": "DISPLAY"
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},
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{
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"name": "PULLUP_LOGIC",
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"latestValue": "true",
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"subsystem": "INPUT"
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},
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{
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"name": "INTERRUPT_SWITCHES",
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"latestValue": "true",
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"subsystem": "INPUT"
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},
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{
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"name": "SWITCH_IODEVICE",
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"latestValue": "",
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"subsystem": "INPUT"
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},
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{
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"name": "ENCODER_PIN_A",
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"latestValue": "26",
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"subsystem": "INPUT"
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},
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{
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"name": "ENCODER_PIN_B",
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"latestValue": "36",
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"subsystem": "INPUT"
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},
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{
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"name": "ENCODER_PIN_OK",
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"latestValue": "21",
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"subsystem": "INPUT"
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},
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{
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"name": "ENCODER_BACK_PIN",
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"latestValue": "-1",
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"subsystem": "INPUT"
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},
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{
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"name": "ENCODER_NEXT_PIN",
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"latestValue": "-1",
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"subsystem": "INPUT"
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},
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{
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"name": "ENCODER_IS_QUARTER_CYCLE",
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"latestValue": "false",
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"subsystem": "INPUT"
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},
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{
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"name": "ITEM_FONT",
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"latestValue": "def:,1",
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"subsystem": "THEME"
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},
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{
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"name": "TITLE_FONT",
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"latestValue": "def:,1",
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"subsystem": "THEME"
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},
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{
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"name": "BORDER_FOR_ACTIONS",
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"latestValue": "0",
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"subsystem": "THEME"
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},
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{
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"name": "TITLE_SHOW_MODE",
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"latestValue": "TITLE_FIRST_ROW",
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"subsystem": "THEME"
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},
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{
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"name": "USE_SLIDER_ANALOG",
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"latestValue": "true",
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"subsystem": "THEME"
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},
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{
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"name": "NEED_EDITING_ICONS",
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"latestValue": "false",
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"subsystem": "THEME"
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}
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],
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"namingRecursive": true,
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"saveToSrc": false,
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"useCppMain": false
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}
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}

‎examples/esp32Lcd/esp32Lcd.ino‎

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#include "esp32Lcd_menu.h"
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void setup() {
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Serial.begin(115200);
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Wire.begin(4, 15);
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setupMenu();
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}
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void loop() {
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taskManager.runLoop();
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}
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// see tcMenu list documentation on thecoderscorner.com
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int CALLBACK_FUNCTION fnMyListRtCall(RuntimeMenuItem* item, uint8_t row, RenderFnMode mode, char* buffer, int bufferSize) {
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switch(mode) {
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case RENDERFN_INVOKE:
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// TODO - your code to invoke goes here - row is the index of the item
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return true;
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case RENDERFN_NAME:
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// TODO - each row has it's own name - 0xff is the parent item
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ltoaClrBuff(buffer, row, 3, NOT_PADDED, bufferSize);
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return true;
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case RENDERFN_VALUE:
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// TODO - each row can has its own value - 0xff is the parent item
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buffer[0] = 'V'; buffer[1]=0;
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fastltoa(buffer, row, 3, NOT_PADDED, bufferSize);
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return true;
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case RENDERFN_EEPROM_POS: return 0xffff; // lists are generally not saved to EEPROM
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default: return false;
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}
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}

‎examples/esp32Lcd/esp32Lcd_menu.cpp‎

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/*
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The code in this file uses open source libraries provided by thecoderscorner
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DO NOT EDIT THIS FILE, IT WILL BE GENERATED EVERY TIME YOU USE THE UI DESIGNER
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INSTEAD EITHER PUT CODE IN YOUR SKETCH OR CREATE ANOTHER SOURCE FILE.
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All the variables you may need access to are marked extern in this file for easy
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use elsewhere.
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*/
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#include <tcMenu.h>
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#include "esp32Lcd_menu.h"
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// Global variable declarations
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const PROGMEM ConnectorLocalInfo applicationInfo = { "Esp32Lcd", "7833942f-2ef4-486f-9713-045552b747e8" };
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LiquidCrystal lcd(0, 1, 2, 4, 5, 6, 7);
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LiquidCrystalRenderer renderer(lcd, 20, 4);
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// Global Menu Item declarations
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RENDERING_CALLBACK_NAME_INVOKE(fnRGBRtCall, rgbAlphaItemRenderFn, "RGB", -1, NO_CALLBACK)
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Rgb32MenuItem menuRGB(5, fnRGBRtCall, false, NULL);
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ListRuntimeMenuItem menuMyList(4, 0, fnMyListRtCall, &menuRGB);
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const PROGMEM BooleanMenuInfo minfoPeeled = { "Power", 3, 0xffff, 1, NO_CALLBACK, NAMING_ON_OFF };
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BooleanMenuItem menuPeeled(&minfoPeeled, false, &menuMyList);
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const char enumStrFoods_0[] PROGMEM = "Apples";
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const char enumStrFoods_1[] PROGMEM = "Bananas";
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const char enumStrFoods_2[] PROGMEM = "Oranges";
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const char enumStrFoods_3[] PROGMEM = "Grapes";
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const char* const enumStrFoods[] PROGMEM = { enumStrFoods_0, enumStrFoods_1, enumStrFoods_2, enumStrFoods_3 };
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const PROGMEM EnumMenuInfo minfoFoods = { "Foods", 2, 0xffff, 3, NO_CALLBACK, enumStrFoods };
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EnumMenuItem menuFoods(&minfoFoods, 0, &menuPeeled);
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const PROGMEM AnalogMenuInfo minfoPercentage = { "Percentage", 1, 0xffff, 100, NO_CALLBACK, 0, 1, "%" };
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AnalogMenuItem menuPercentage(&minfoPercentage, 0, &menuFoods);
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// Set up code
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void setupMenu() {
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Wire.begin();
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lcd.setIoAbstraction(ioFrom8574(0x27, 0xff, &Wire));
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lcd.begin(20, 4);
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renderer.setUpdatesPerSecond(2);
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lcd.configureBacklightPin(3);
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lcd.backlight();
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switches.initialiseInterrupt(internalDigitalIo(), true);
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menuMgr.initForEncoder(&renderer, &menuPercentage, 26, 36, 21);
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}
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‎examples/esp32Lcd/esp32Lcd_menu.h‎

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/*
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The code in this file uses open source libraries provided by thecoderscorner
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DO NOT EDIT THIS FILE, IT WILL BE GENERATED EVERY TIME YOU USE THE UI DESIGNER
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INSTEAD EITHER PUT CODE IN YOUR SKETCH OR CREATE ANOTHER SOURCE FILE.
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All the variables you may need access to are marked extern in this file for easy
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use elsewhere.
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*/
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#ifndef MENU_GENERATED_CODE_H
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#define MENU_GENERATED_CODE_H
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#include <Arduino.h>
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#include <tcMenu.h>
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#include <Wire.h>
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#include <LiquidCrystalIO.h>
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#include <IoAbstractionWire.h>
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#include <ScrollChoiceMenuItem.h>
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#include <RuntimeMenuItem.h>
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#include "tcMenuLiquidCrystal.h"
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void setupMenu(); // forward reference of the menu setup function.
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extern const PROGMEM ConnectorLocalInfo applicationInfo; // contains app name and ID
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// Global variables that need exporting
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extern LiquidCrystal lcd;
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extern LiquidCrystalRenderer renderer;
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// Global Menu Item exports
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extern Rgb32MenuItem menuRGB;
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extern ListRuntimeMenuItem menuMyList;
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extern BooleanMenuItem menuPeeled;
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extern EnumMenuItem menuFoods;
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extern AnalogMenuItem menuPercentage;
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// Provide a wrapper to get hold of the root menu item
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inline MenuItem& rootMenuItem() { return menuPercentage; }
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// Callback functions must always include CALLBACK_FUNCTION after the return type
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#define CALLBACK_FUNCTION
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int fnMyListRtCall(RuntimeMenuItem* item, uint8_t row, RenderFnMode mode, char* buffer, int bufferSize);
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#endif // MENU_GENERATED_CODE_H

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