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Thorsten
2025-09-01 13:55:12 +02:00
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.pio
.vscode/.browse.c_cpp.db*
.vscode/c_cpp_properties.json
.vscode/launch.json
.vscode/ipch

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{
// See http://go.microsoft.com/fwlink/?LinkId=827846
// for the documentation about the extensions.json format
"recommendations": [
"platformio.platformio-ide"
],
"unwantedRecommendations": [
"ms-vscode.cpptools-extension-pack"
]
}

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{
"files.associations": {
"array": "cpp",
"deque": "cpp",
"list": "cpp",
"string": "cpp",
"unordered_map": "cpp",
"vector": "cpp",
"string_view": "cpp",
"initializer_list": "cpp",
"ranges": "cpp",
"atomic": "cpp",
"bit": "cpp",
"*.tcc": "cpp",
"cctype": "cpp",
"chrono": "cpp",
"clocale": "cpp",
"cmath": "cpp",
"compare": "cpp",
"concepts": "cpp",
"cstdarg": "cpp",
"cstddef": "cpp",
"cstdint": "cpp",
"cstdio": "cpp",
"cstdlib": "cpp",
"cstring": "cpp",
"ctime": "cpp",
"cwchar": "cpp",
"cwctype": "cpp",
"map": "cpp",
"set": "cpp",
"exception": "cpp",
"algorithm": "cpp",
"functional": "cpp",
"iterator": "cpp",
"memory": "cpp",
"memory_resource": "cpp",
"numeric": "cpp",
"optional": "cpp",
"random": "cpp",
"ratio": "cpp",
"system_error": "cpp",
"tuple": "cpp",
"type_traits": "cpp",
"utility": "cpp",
"iosfwd": "cpp",
"istream": "cpp",
"limits": "cpp",
"new": "cpp",
"ostream": "cpp",
"stdexcept": "cpp",
"streambuf": "cpp",
"cinttypes": "cpp",
"typeinfo": "cpp",
"variant": "cpp"
}
}

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This directory is intended for project header files.
A header file is a file containing C declarations and macro definitions
to be shared between several project source files. You request the use of a
header file in your project source file (C, C++, etc) located in `src` folder
by including it, with the C preprocessing directive `#include'.
```src/main.c
#include "header.h"
int main (void)
{
...
}
```
Including a header file produces the same results as copying the header file
into each source file that needs it. Such copying would be time-consuming
and error-prone. With a header file, the related declarations appear
in only one place. If they need to be changed, they can be changed in one
place, and programs that include the header file will automatically use the
new version when next recompiled. The header file eliminates the labor of
finding and changing all the copies as well as the risk that a failure to
find one copy will result in inconsistencies within a program.
In C, the convention is to give header files names that end with `.h'.
Read more about using header files in official GCC documentation:
* Include Syntax
* Include Operation
* Once-Only Headers
* Computed Includes
https://gcc.gnu.org/onlinedocs/cpp/Header-Files.html

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This directory is intended for project specific (private) libraries.
PlatformIO will compile them to static libraries and link into the executable file.
The source code of each library should be placed in a separate directory
("lib/your_library_name/[Code]").
For example, see the structure of the following example libraries `Foo` and `Bar`:
|--lib
| |
| |--Bar
| | |--docs
| | |--examples
| | |--src
| | |- Bar.c
| | |- Bar.h
| | |- library.json (optional. for custom build options, etc) https://docs.platformio.org/page/librarymanager/config.html
| |
| |--Foo
| | |- Foo.c
| | |- Foo.h
| |
| |- README --> THIS FILE
|
|- platformio.ini
|--src
|- main.c
Example contents of `src/main.c` using Foo and Bar:
```
#include <Foo.h>
#include <Bar.h>
int main (void)
{
...
}
```
The PlatformIO Library Dependency Finder will find automatically dependent
libraries by scanning project source files.
More information about PlatformIO Library Dependency Finder
- https://docs.platformio.org/page/librarymanager/ldf.html

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platformio.ini Normal file
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; PlatformIO Project Configuration File
;
; Build options: build flags, source filter
; Upload options: custom upload port, speed and extra flags
; Library options: dependencies, extra library storages
; Advanced options: extra scripting
;
; Please visit documentation for the other options and examples
; https://docs.platformio.org/page/projectconf.html
[env:nodemcuv2]
platform = espressif8266
board = nodemcuv2
framework = arduino
upload_speed = 115200
monitor_speed = 115200
lib_deps =
adafruit/Adafruit GFX Library@^1.11.5
adafruit/Adafruit ILI9341@^1.5.6
https://github.com/PaulStoffregen/XPT2046_Touchscreen.git
bblanchon/ArduinoJson@^6.21.2

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{
"folders": [
{
"path": "../.."
},
{
"name": "_lcd_test",
"path": "../../../../../../../Dokumente/PlatformIO/Projects/_lcd_test"
}
],
"settings": {}
}

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#include <ESP8266WiFi.h>
#include <ESP8266HTTPClient.h>
#include <Adafruit_GFX.h>
#include <Adafruit_ILI9341.h>
#include <XPT2046_Touchscreen.h>
#include <ArduinoJson.h>
#include <settings.h>
// ==== Display-Pins ====
#define TFT_CS D1
#define TFT_DC D2
#define TFT_RST -1
#define TFT_LED D8
// ==== Touch-Pins ====
#define TOUCH_CS D3
#define TOUCH_IRQ D4
Adafruit_ILI9341 tft = Adafruit_ILI9341(TFT_CS, TFT_DC, TFT_RST);
XPT2046_Touchscreen ts(TOUCH_CS, TOUCH_IRQ);
int meterColorMode = 1; // oben
int plugColorMode = 1; // unten
int displayWidth = 315; // rechts 5 Pixel auslassen. Sieht besser aus im Gehäuse
int displayHight = 240;
// ==== Farben pro Modus ====
uint16_t meterColorPowerPositive;
uint16_t meterColorPowerNegative;
uint16_t plugColorPowerPositive;
uint16_t plugColorPowerNegative;
void applyColorMode(int meterMode, int plugMode) {
switch (meterMode) {
case 1: meterColorPowerPositive = ILI9341_WHITE; meterColorPowerNegative = ILI9341_GREEN; break;
case 2: meterColorPowerPositive = ILI9341_RED; meterColorPowerNegative = ILI9341_GREEN; break;
case 3: meterColorPowerPositive = ILI9341_WHITE; meterColorPowerNegative = ILI9341_WHITE; break;
}
switch (plugMode) {
case 1: plugColorPowerPositive = ILI9341_WHITE; plugColorPowerNegative = ILI9341_GREEN; break;
case 2: plugColorPowerPositive = ILI9341_YELLOW; plugColorPowerNegative = ILI9341_GREEN; break;
case 3: plugColorPowerPositive = ILI9341_GREEN; plugColorPowerNegative = ILI9341_GREEN; break;
}
}
const unsigned long refreshInterval = refreshrate_power;
String lastMeterPower = "";
String lastPlugPower = "";
bool meterWasNegative = false;
bool plugWasNegative = false;
unsigned long lastUpdateTime = 0;
String getTasmotaValue(const String& ip, const String& jsonKey, int decimalPlaces = 0) {
WiFiClient client;
HTTPClient http;
String result = "?";
if (http.begin(client, "http://" + ip + "/cm?cmnd=Status%208")) {
int httpCode = http.GET();
if (httpCode == 200) {
String response = http.getString();
StaticJsonDocument<768> doc;
DeserializationError error = deserializeJson(doc, response);
if (!error) {
JsonObject sns = doc["StatusSNS"];
for (JsonPair kv : sns) {
if (kv.value().is<JsonObject>()) {
JsonObject inner = kv.value().as<JsonObject>();
if (inner.containsKey(jsonKey)) {
float val = inner[jsonKey];
result = String((int)val);
break;
}
}
}
}
}
http.end();
}
return result;
}
String rightAlign(String value, size_t totalLength) {
while (value.length() < totalLength) value = " " + value;
return value;
}
void drawCenteredLabel(const char* text, int y, int textSizeLabel = 3) {
int len = strlen(text);
int textWidth = len * 6 * textSizeLabel;
int textHeight = 8 * textSizeLabel;
int x = (displayWidth - textWidth) / 2;
int rectHeight = textHeight + 4;
tft.fillRect(0, y - 2, displayWidth, rectHeight, ILI9341_WHITE);
tft.setTextSize(textSizeLabel);
tft.setTextColor(ILI9341_BLACK, ILI9341_WHITE);
tft.setCursor(x, y);
tft.print(text);
}
void drawRightAlignedValue(const String& newValRaw, String& oldValRaw, int startY, bool isNegativeNow, bool& wasNegativeLastTime, uint16_t colorIfPositive, uint16_t colorIfNegative) {
const int textSizeValue = 8;
const int textSizeW = 3;
const int charWidthValue = 6 * textSizeValue;
const int charWidthW = 6 * textSizeW;
const int valueHeight = 8 * textSizeValue;
const size_t maxLen = 6;
String newVal = rightAlign(newValRaw, maxLen);
String oldVal = rightAlign(oldValRaw, maxLen);
uint16_t color = isNegativeNow ? colorIfNegative : colorIfPositive;
bool fullRedraw = (isNegativeNow != wasNegativeLastTime);
for (size_t i = 0; i < maxLen; i++) {
char oldChar = oldVal.charAt(i);
char newChar = newVal.charAt(i);
if (fullRedraw || oldChar != newChar) {
int charX = displayWidth - ((maxLen - i) * charWidthValue + charWidthW);
tft.fillRect(charX, startY, charWidthValue, valueHeight, ILI9341_BLACK);
tft.setCursor(charX, startY);
tft.setTextSize(textSizeValue);
tft.setTextColor(color, ILI9341_BLACK);
tft.print(newChar);
}
}
int wX = displayWidth - charWidthW;
tft.setTextSize(textSizeW);
tft.setTextColor(ILI9341_WHITE, ILI9341_BLACK);
tft.setCursor(wX, startY + 20);
tft.print("W");
oldValRaw = newValRaw;
wasNegativeLastTime = isNegativeNow;
}
void showColorPreview() {
tft.fillRect(0, 0, tft.width(), tft.height(), ILI9341_BLACK);
// Farbkästchen oben (Netzbezug)
int centerY_top = 30;
int boxSize = 30;
int centerX = tft.width() / 2;
tft.fillRect(centerX - boxSize - 5, centerY_top, boxSize, boxSize, meterColorPowerPositive); // positiv
tft.fillRect(centerX + 5, centerY_top, boxSize, boxSize, meterColorPowerNegative); // negativ
// Farbkästchen unten (Erzeugung)
int centerY_bottom = tft.height() - 50;
tft.fillRect(centerX - boxSize - 5, centerY_bottom, boxSize, boxSize, plugColorPowerPositive); // positiv
tft.fillRect(centerX + 5, centerY_bottom, boxSize, boxSize, plugColorPowerNegative); // negativ
delay(1000); // 1 Sekunde anzeigen
}
void updateDisplay(const String& meterPower, const String& plugPower) {
bool isMeterNegative = meterPower.toFloat() < 0;
if (meterPower != lastMeterPower || isMeterNegative != meterWasNegative) {
drawRightAlignedValue(meterPower, lastMeterPower, 45, isMeterNegative, meterWasNegative, meterColorPowerPositive, meterColorPowerNegative);
}
bool isPlugNegative = plugPower.toFloat() < 0;
if (plugPower != lastPlugPower || isPlugNegative != plugWasNegative) {
drawRightAlignedValue(plugPower, lastPlugPower, 163, isPlugNegative, plugWasNegative, plugColorPowerPositive, plugColorPowerNegative);
}
}
void showConnectingAnimation() {
tft.fillScreen(ILI9341_BLACK);
drawCenteredLabel("WLAN verbinden", 2);
drawCenteredLabel("Bitte warten...", 212);
int centerX = 160;
int centerY = 110;
int delayMs = 250;
for (int i = 0; i < 3; i++) {
for (int r = 5; r <= 30; r += 5) {
tft.drawCircle(centerX, centerY, r, ILI9341_WHITE);
delay(delayMs);
}
for (int r = 5; r <= 30; r += 5) {
tft.drawCircle(centerX, centerY, r, ILI9341_BLACK);
}
}
}
void connectToWiFi() {
showConnectingAnimation();
WiFi.mode(WIFI_STA);
WiFi.setHostname(hostname);
int numNetworks = sizeof(ssidList) / sizeof(ssidList[0]);
for (int i = 0; i < numNetworks; i++) {
WiFi.begin(ssidList[i], passwordList[i]);
unsigned long startAttemptTime = millis();
while (WiFi.status() != WL_CONNECTED && millis() - startAttemptTime < 10000) {
delay(500);
}
if (WiFi.status() == WL_CONNECTED) return;
}
}
void resetScreen() {
tft.fillScreen(ILI9341_BLACK);
drawCenteredLabel("Netzbezug:", 2);
drawCenteredLabel("Erzeugung:", 120);
lastMeterPower = "";
lastPlugPower = "";
}
void setup() {
Serial.begin(115200);
pinMode(TFT_LED, OUTPUT);
digitalWrite(TFT_LED, HIGH);
tft.begin();
tft.setRotation(3);
tft.fillScreen(ILI9341_BLACK);
ts.begin();
ts.setRotation(3);
connectToWiFi();
applyColorMode(meterColorMode, plugColorMode);
resetScreen();
}
void loop() {
if (ts.touched()) {
TS_Point p = ts.getPoint();
delay(200); // Debounce
// Touch-Koordinaten korrekt umrechnen
int touchX = map(p.x, 3900, 250, 0, tft.width());
int touchY = map(p.y, 3700, 370, 0, tft.height());
if (touchY < tft.height() / 2) {
// Oben berührt → Netzbezug-Modus umschalten
meterColorMode = (meterColorMode % 3) + 1;
Serial.print("Touch oben erkannt. Neuer meterColorMode: ");
Serial.println(meterColorMode);
} else {
// Unten berührt → Erzeugung-Modus umschalten
plugColorMode = (plugColorMode % 3) + 1;
Serial.print("Touch unten erkannt. Neuer plugColorMode: ");
Serial.println(plugColorMode);
}
applyColorMode(meterColorMode, plugColorMode);
resetScreen(); // neu zeichnen
}
if (millis() - lastUpdateTime >= refreshInterval) {
lastUpdateTime = millis();
if (WiFi.status() != WL_CONNECTED) {
connectToWiFi();
return;
}
String meterPower = getTasmotaValue(tasmota_smr_ip, tasmota_smr_json_prefix_power);
String plugPower = getTasmotaValue(tasmota_plug_ip, tasmota_plug_json_prefix_power);
updateDisplay(meterPower, plugPower);
}
}

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#include <Arduino.h>
#ifndef SETTINGS_H
#define SETTINGS_H
// ######################## WLAN-Daten ########################
const char* hostname = "ESP8266_Energiemeter";
const char* ssidList[] = {
"FRITZ!Box 7510 DQ", // SSID 1
"502 Bad Gateway", // SSID 2
// Weitere SSID hier hinzufügen
};
const char* passwordList[] = {
"69921782362054480598", // Passwort für SSID 1
"t86zGf$%cb6UK^3pW8DyGTxEx", // Passwort für SSID 2
// Weitere Passwörter hier hinzufügen
};
// ################## Tasmota Einstellungen ###################
// ===================== Energiemessung =======================
// Zwischenstecker am Balkonkraftwerk
String tasmota_plug_ip = "192.168.178.237";
String tasmota_plug_json_prefix_power = "Power";
String tasmota_plug_json_prefix_energy_today = "Today";
// SmartMeterReader
String tasmota_smr_ip = "192.168.178.236";
String tasmota_smr_json_prefix_power = "Power";
// ================== Register-Einstellungen ==================
// ------------- 1.8.0 -------------
// Überschrift im Display, wenn das 1.8.0 Register angezeigt wird (LCD Display Zeile 1)
String tasmota_smr_json_prefix_1_8_0_lcd_text = "1.8.0 (HT+NT):";
// Tasmota Script JSON Prefix für das 1.8.0 Register (Wert in Zeile 2)
String tasmota_smr_json_prefix_1_8_0 = "E_in_180";
// ------------- 1.8.1 -------------
// Überschrift im Display, wenn das 1.8.1 Register angezeigt wird (LCD Display Zeile 1)
String tasmota_smr_json_prefix_1_8_1_lcd_text = "1.8.1 (NT):";
// Tasmota Script JSON Prefix für das 1.8.1 Register (Wert in Zeile 2)
String tasmota_smr_json_prefix_1_8_1 = "E_in_181";
// ------------- 1.8.2 -------------
// Überschrift im Display, wenn das 1.8.2 Register angezeigt wird (LCD Display Zeile 1)
String tasmota_smr_json_prefix_1_8_2_lcd_text = "1.8.2 (HT):";
// Tasmota Script JSON Prefix für das 1.8.2 Register (Wert in Zeile 2)
String tasmota_smr_json_prefix_1_8_2 = "E_in_182";
// ------------- 2.8.0 -------------
// Überschrift im Display, wenn das 2.8.0 Register angezeigt wird (LCD Display Zeile 1)
String tasmota_smr_json_prefix_2_8_0_lcd_text = "2.8.0 (Einsp.):";
// Tasmota Script JSON Prefix für das 2.8.0 Register (Wert in Zeile 2)
String tasmota_smr_json_prefix_2_8_0 = "E_out_280";
// ------- Nachkommastellen --------
// Anzahl Nachkommastellen bei den ausgelesenen Tasmota Werten
// -1 = Alle / 0 = Keine / 2 = 2 Nachkommastellen
int tasmota_decimalplaces = 2;
// ################# Allgemeine Einstellungen #################
// Aktualisierungsrate im Bildschirm aktuelle Leistung (in Millisekunden)
unsigned long refreshrate_power = 3000;
// Aktualisierungsrate in den Bildschirmen der Verbrauchsdaten (in Millisekunden)
unsigned long refreshrate_consumption = 15000;
// ############################################################
#endif // SETTINGS_H

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This directory is intended for PlatformIO Test Runner and project tests.
Unit Testing is a software testing method by which individual units of
source code, sets of one or more MCU program modules together with associated
control data, usage procedures, and operating procedures, are tested to
determine whether they are fit for use. Unit testing finds problems early
in the development cycle.
More information about PlatformIO Unit Testing:
- https://docs.platformio.org/en/latest/advanced/unit-testing/index.html