Initial commit
This commit is contained in:
6
.gitignore
vendored
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6
.gitignore
vendored
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@@ -0,0 +1,6 @@
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||||
.pio
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||||
.vscode/.browse.c_cpp.db*
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||||
.vscode/c_cpp_properties.json
|
||||
.vscode/launch.json
|
||||
.vscode/ipch
|
||||
settings-my-ignore.h
|
||||
10
.vscode/extensions.json
vendored
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10
.vscode/extensions.json
vendored
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@@ -0,0 +1,10 @@
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||||
{
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||||
// See http://go.microsoft.com/fwlink/?LinkId=827846
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||||
// for the documentation about the extensions.json format
|
||||
"recommendations": [
|
||||
"platformio.platformio-ide"
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||||
],
|
||||
"unwantedRecommendations": [
|
||||
"ms-vscode.cpptools-extension-pack"
|
||||
]
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||||
}
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||||
51
README.md
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51
README.md
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# ESP8266 LCD Energymeter
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Ein Projekt zur Visualisierung von Energiedaten von **Tasmota-Messgeräten** mit einem **ESP8266** und einem 1602 LCD.
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Das Script fragt periodisch zwei Tasmota-Geräte nach ihrer gemessenen Leistung und zeigt diese auf dem Display an.
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Ein einfacher Energie-Monitor.
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<img src="https://git.gofel.net/Thorsten/esp8266_lcd_energymeter/raw/branch/master/images/image_1.jpg" alt="Projektbild" width="300">
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## Funktionen
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- **Anzeige des Netzbezugs** (gemessen am Stromzähler)
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- **Anzeige der Erzeugung** (gemessen am Balkonkraftwerk)
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- **Taster** zum Ändern der Pull-Rate (Optional)
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## Konfiguration
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Passe die `settings.h` auf deine Bedürfnisse an
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```cpp
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// ######################## WLAN-Daten ########################
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const char* hostname = "ESP32_WLAN_Test";
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const char* ssidList[] = {
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"SSID_1", // Netzwerk 1
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"SSID_2", // Netzwerk 2
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"SSID_3" // Netzwerk 3
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// Weitere SSID hier hinzufügen
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};
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const char* passwordList[] = {
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"Passwort_1", // Passwort für SSID 1
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"Passwort_2", // Passwort für SSID 2
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"Passwort_3" // Passwort für SSID 3
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// Weitere Passwörter hier hinzufügen
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};
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// ####################### Tasmota IPs ########################
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String ip_netzbezug = "192.168.178.236";
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String ip_erzeugung = "192.168.178.237";
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// ############################################################
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```
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## Schaltplan
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<img src="https://git.gofel.net/Thorsten/esp8266_lcd_energymeter/raw/branch/master/images/image_2.png" alt="Schaltplan" width="600">
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#### Hinweise:
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- Der **MT3608** (Step-Up-Wandler) ist optional. Er sorgt für eine stabile Spannung von 5V für das LCD, selbst wenn die Batterie schwächer wird.
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- Der **ESP8266** muss nicht zwingend hinter dem MT3608 geschaltet sein, da er weniger empfindlich auf Spannungsschwankungen reagiert als das Display.
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BIN
circuit-diagram/circuit-diagram.spl8
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BIN
circuit-diagram/circuit-diagram.spl8
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Binary file not shown.
BIN
images/image_1.jpg
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BIN
images/image_1.jpg
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Binary file not shown.
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After Width: | Height: | Size: 1.1 MiB |
BIN
images/image_2.png
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BIN
images/image_2.png
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Binary file not shown.
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After Width: | Height: | Size: 26 KiB |
39
include/README
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39
include/README
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||||
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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 usual convention is to give header files names that end with `.h'.
|
||||
It is most portable to use only letters, digits, dashes, and underscores in
|
||||
header file names, and at most one dot.
|
||||
|
||||
Read more about using header files in official GCC documentation:
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||||
|
||||
* Include Syntax
|
||||
* Include Operation
|
||||
* Once-Only Headers
|
||||
* Computed Includes
|
||||
|
||||
https://gcc.gnu.org/onlinedocs/cpp/Header-Files.html
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||||
46
lib/README
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46
lib/README
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|
||||
|
||||
This directory is intended for project specific (private) libraries.
|
||||
PlatformIO will compile them to static libraries and link into executable file.
|
||||
|
||||
The source code of each library should be placed in an own separate directory
|
||||
("lib/your_library_name/[here are source files]").
|
||||
|
||||
For example, see a structure of the following two libraries `Foo` and `Bar`:
|
||||
|
||||
|--lib
|
||||
| |
|
||||
| |--Bar
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||||
| | |--docs
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||||
| | |--examples
|
||||
| | |--src
|
||||
| | |- Bar.c
|
||||
| | |- Bar.h
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||||
| | |- library.json (optional, custom build options, etc) https://docs.platformio.org/page/librarymanager/config.html
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||||
| |
|
||||
| |--Foo
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||||
| | |- Foo.c
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||||
| | |- Foo.h
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||||
| |
|
||||
| |- README --> THIS FILE
|
||||
|
|
||||
|- platformio.ini
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||||
|--src
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||||
|- main.c
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||||
|
||||
and a contents of `src/main.c`:
|
||||
```
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||||
#include <Foo.h>
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||||
#include <Bar.h>
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||||
|
||||
int main (void)
|
||||
{
|
||||
...
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||||
}
|
||||
|
||||
```
|
||||
|
||||
PlatformIO Library Dependency Finder will find automatically dependent
|
||||
libraries scanning project source files.
|
||||
|
||||
More information about PlatformIO Library Dependency Finder
|
||||
- https://docs.platformio.org/page/librarymanager/ldf.html
|
||||
18
platformio.ini
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18
platformio.ini
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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]
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||||
platform = espressif8266
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board = nodemcuv2
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||||
framework = arduino
|
||||
upload_speed = 115200
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||||
monitor_speed = 115200
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||||
lib_deps =
|
||||
LiquidCrystal_I2C
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||||
303
src/main.cpp
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303
src/main.cpp
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||||
#include <ESP8266WiFi.h>
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#include <ESP8266HTTPClient.h>
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||||
#include <LiquidCrystal_I2C.h>
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#include <settings.h>
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||||
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||||
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||||
#define BUTTON_PIN D3 // GPIO-Pin verbunden mit Taster (D3 entspricht GPIO0)
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const uint32_t connectTimeoutMs = 10000; // WLAN Timeout
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// Globale Variablen
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unsigned long lastUpdateTime = 0; // Zeitstempel der letzten Aktion
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unsigned long refreshRate = 5000; // Anfangsverzögerung in Millisekunden
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unsigned long messageDisplayTime = 0; // Zeitstempel für die 5-Sekunden-Anzeige
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bool isMessageDisplayed = false; // Zustand, ob die Aktualisierungsrate angezeigt wird
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int currentDelayIndex = 0; // Aktueller Index im Delay-Array
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const unsigned long delayOptions[] = {5000, 10000, 15000, 20000, 30000, 45000, 60000, 1000, 2000};
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const int delayOptionsSize = sizeof(delayOptions) / sizeof(delayOptions[0]);
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int lastButtonState = HIGH; // Letzter Zustand des Buttons
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int currentButtonState;
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String netzbezug;
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String netzbezug_alt;
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String erzeugung;
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String erzeugung_alt;
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// LCD initialisieren (16x2 Display)
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LiquidCrystal_I2C lcd(0x27, 16, 2);
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int numNetworks = sizeof(ssidList) / sizeof(ssidList[0]);
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int current_ap = 0; // Start mit der ersten SSID
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bool reconnecting = false; // Flag für den Reconnect-Status
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// WLAN Symbol
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byte customChar_wlan[] = {
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B00000,
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B01110,
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B10001,
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B00100,
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B01010,
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B00000,
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B00100,
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B00000
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};
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||||
// Funktion zum Anzeigen von Text auf einem 1602 LCD Display
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//
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// _lcd_display_text(TEXT, ROW, RETURNTOSTART, ALIGNMENT)
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//
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||||
// row = 0 Zeile 0 wir beschrieben [default]
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// = 1 Zeile 1 wir beschrieben [default]
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||||
// text = Der anzuzeigende Text (default löscht die komplette Zeile)
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||||
// alignment = left Text Ausrichtung links (Bei <= 16 Zeichen) [default]
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||||
// = center Text Ausrichtung zentriert (Bei <= 16 Zeichen)
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||||
// = right Text Ausrichtung links (Bei <= 16 Zeichen)
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||||
// returnToStart = false Zu langer Text der durchgescrollt wird stoppt am Ende [default]
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||||
// true Zu langer Text der durchgescrollt wird springt zum 1. Buchstaben zurück
|
||||
void _lcd_display_text(int row = 0, const char* text = " ", const char* alignment = "left", bool returnToStart = false) {
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||||
|
||||
// Textlänge ermitteln
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||||
int textLength = strlen(text);
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||||
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||||
// Sicherstellen, dass die Zeile gültig ist (0 oder 1)
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||||
if (row < 0 || row > 1) {
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||||
return;
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||||
}
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||||
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||||
lcd.setCursor(0, row);
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||||
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||||
// Wenn der Text <= 16 Zeichen ist, ausrichten
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||||
if (textLength <= 16) {
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||||
int padding = 0;
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||||
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||||
if (strcmp(alignment, "center") == 0) {
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||||
padding = (16 - textLength) / 2; // Zentriert
|
||||
} else if (strcmp(alignment, "right") == 0) {
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||||
padding = 16 - textLength; // Rechtsbündig
|
||||
}
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||||
|
||||
//lcd.clear();
|
||||
lcd.setCursor(0, row);
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||||
|
||||
// Leerzeichen vor dem Text für Ausrichtung
|
||||
for (int i = 0; i < padding; i++) {
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||||
lcd.print(" ");
|
||||
}
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||||
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||||
// Text ausgeben
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||||
lcd.print(text);
|
||||
|
||||
} else {
|
||||
// Wenn der Text > 16 Zeichen ist, zuerst die ersten 16 Zeichen anzeigen
|
||||
lcd.setCursor(0, row);
|
||||
lcd.print(text);
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||||
delay(2000); // Kurze Pause, damit der Anfang lesbar ist
|
||||
|
||||
// Danach scrollen
|
||||
for (int i = 1; i <= textLength - 16; i++) {
|
||||
lcd.setCursor(0, row);
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||||
lcd.print(text + i); // Ab Offset i den Text anzeigen
|
||||
delay(300); // Verzögerung für Scroll-Geschwindigkeit
|
||||
}
|
||||
|
||||
// Verhalten nach dem Scrollen festlegen
|
||||
if (returnToStart) {
|
||||
lcd.setCursor(0, row);
|
||||
lcd.print(text); // Anfang des Textes wieder anzeigen
|
||||
} else {
|
||||
lcd.setCursor(0, row);
|
||||
lcd.print(text + (textLength - 16)); // Text hinten stehen lassen
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// Funktion zum Extrahieren eines Wertes aus der GET-Anfrage von Tasmota-Geräten
|
||||
String _extract_value_tasmota_json(const String& url, const String& key) {
|
||||
WiFiClient client; // WiFiClient-Objekt erstellen
|
||||
HTTPClient http;
|
||||
|
||||
if (http.begin(client, url)) { // Begin mit WiFiClient und URL
|
||||
int httpResponseCode = http.GET();
|
||||
|
||||
if (httpResponseCode == 200) {
|
||||
String response = http.getString();
|
||||
http.end();
|
||||
|
||||
int startIndex = response.indexOf("\"" + key + "\":");
|
||||
if (startIndex == -1) {
|
||||
return "?"; // Key nicht gefunden
|
||||
}
|
||||
startIndex += key.length() + 3;
|
||||
int endIndex = response.indexOf(",", startIndex);
|
||||
if (endIndex == -1) {
|
||||
endIndex = response.indexOf("}", startIndex);
|
||||
}
|
||||
if (endIndex == -1) {
|
||||
return "?";
|
||||
}
|
||||
String value = response.substring(startIndex, endIndex);
|
||||
value.trim();
|
||||
return String((int)value.toFloat()); // Nachkommastellen abschneiden
|
||||
} else {
|
||||
//Serial.println("Fehler bei der Anfrage: " + String(httpResponseCode));
|
||||
}
|
||||
http.end();
|
||||
} else {
|
||||
Serial.println("Verbindung zur URL fehlgeschlagen: " + url);
|
||||
}
|
||||
|
||||
return "?";
|
||||
}
|
||||
|
||||
// WLAN-Verbindung herstellen
|
||||
void connectToWiFi() {
|
||||
Serial.println("WLAN Verbindungsaufbau zu: " + String(ssidList[current_ap]));
|
||||
Serial.println("Passwort: " + String(passwordList[current_ap]));
|
||||
|
||||
_lcd_display_text(0, "Bitte warten", "center");
|
||||
_lcd_display_text(1, "WLAN verbinden ", "left");
|
||||
|
||||
lcd.createChar(0, customChar_wlan);
|
||||
lcd.setCursor(15, 1);
|
||||
lcd.write(byte(0));
|
||||
|
||||
WiFi.begin(ssidList[current_ap], passwordList[current_ap]);
|
||||
|
||||
//Blinkendes WLAN Symbol wärend das WLAN versucht zu verbinden
|
||||
int attempt = 0;
|
||||
while (WiFi.status() != WL_CONNECTED && attempt < 10) {
|
||||
delay(500);
|
||||
Serial.print(".");
|
||||
lcd.setCursor(15, 1);
|
||||
lcd.print(" ");
|
||||
delay(500);
|
||||
lcd.setCursor(15, 1);
|
||||
lcd.write(byte(0));
|
||||
attempt++;
|
||||
}
|
||||
|
||||
//Verbindung fehlgeschlagen (current_ap erhöhen)
|
||||
if (WiFi.status() != WL_CONNECTED) {
|
||||
WiFi.disconnect();
|
||||
delay(500);
|
||||
Serial.println("\nVerbindung fehlgeschlagen.");
|
||||
current_ap = (current_ap + 1) % numNetworks;
|
||||
reconnecting = false;
|
||||
//Verbunden
|
||||
} else {
|
||||
Serial.print("\nWLAN verbunden: ");
|
||||
Serial.print(WiFi.SSID());
|
||||
Serial.print(" ");
|
||||
Serial.println(WiFi.RSSI());
|
||||
|
||||
_lcd_display_text(0, "WLAN verbunden", "center");
|
||||
_lcd_display_text(1);
|
||||
_lcd_display_text(1, WiFi.SSID().c_str());
|
||||
|
||||
reconnecting = false;
|
||||
delay(2500);
|
||||
|
||||
_lcd_display_text(0, "Netzbezug: ?W");
|
||||
_lcd_display_text(1, "Erzeugung: ?W");
|
||||
}
|
||||
}
|
||||
|
||||
void update_power_values() {
|
||||
|
||||
Serial.print("SmartMeterReader auslesen: ");
|
||||
netzbezug = _extract_value_tasmota_json("http://" + ip_netzbezug + "/cm?cmnd=Status%208", "Power");
|
||||
Serial.print(netzbezug + "W\n");
|
||||
|
||||
|
||||
Serial.print("Zwischenstecker auslesen : ");
|
||||
erzeugung = _extract_value_tasmota_json("http://" + ip_erzeugung + "/cm?cmnd=Status%208", "Power");
|
||||
Serial.print(erzeugung + "W\n");
|
||||
|
||||
if (netzbezug != netzbezug_alt) {
|
||||
lcd.setCursor(10, 0);
|
||||
lcd.print(" ");
|
||||
lcd.setCursor(16 - (netzbezug.length() + 1), 0);
|
||||
lcd.print(netzbezug);
|
||||
}
|
||||
|
||||
|
||||
if (erzeugung != erzeugung_alt) {
|
||||
lcd.setCursor(10, 1);
|
||||
lcd.print(" ");
|
||||
lcd.setCursor(16 - (erzeugung.length() + 1), 1);
|
||||
lcd.print(erzeugung);
|
||||
}
|
||||
|
||||
netzbezug_alt = netzbezug;
|
||||
erzeugung_alt = erzeugung;
|
||||
|
||||
}
|
||||
|
||||
void handleButtonPress() {
|
||||
currentButtonState = digitalRead(BUTTON_PIN);
|
||||
|
||||
if (currentButtonState == LOW && lastButtonState == HIGH) {
|
||||
currentDelayIndex = (currentDelayIndex + 1) % delayOptionsSize;
|
||||
refreshRate = delayOptions[currentDelayIndex];
|
||||
|
||||
Serial.print("Neue Aktualisierungsrate: ");
|
||||
Serial.println(refreshRate);
|
||||
|
||||
_lcd_display_text(0, " Aktual. Rate ");
|
||||
_lcd_display_text(1);
|
||||
_lcd_display_text(1, (String(refreshRate / 1000) + " Sekunden").c_str(), "center");
|
||||
|
||||
isMessageDisplayed = true;
|
||||
messageDisplayTime = millis();
|
||||
|
||||
delay(200);
|
||||
}
|
||||
|
||||
lastButtonState = currentButtonState;
|
||||
}
|
||||
|
||||
void setup() {
|
||||
pinMode(BUTTON_PIN, INPUT_PULLUP);
|
||||
|
||||
Serial.begin(115200);
|
||||
delay(1000);
|
||||
|
||||
lcd.init();
|
||||
lcd.backlight();
|
||||
lcd.createChar(0, customChar_wlan);
|
||||
|
||||
WiFi.setHostname(hostname);
|
||||
WiFi.mode(WIFI_STA);
|
||||
|
||||
lcd.setCursor(0, 0);
|
||||
_lcd_display_text(0, "Bereit", "center");
|
||||
}
|
||||
|
||||
void loop() {
|
||||
handleButtonPress();
|
||||
|
||||
if (WiFi.status() != WL_CONNECTED && !reconnecting) {
|
||||
reconnecting = true;
|
||||
connectToWiFi();
|
||||
}
|
||||
|
||||
if (isMessageDisplayed && millis() - messageDisplayTime >= 2500) {
|
||||
isMessageDisplayed = false;
|
||||
_lcd_display_text(0, "Netzbezug: ?W");
|
||||
_lcd_display_text(1, "Erzeugung: ?W");
|
||||
update_power_values();
|
||||
}
|
||||
|
||||
if (WiFi.status() == WL_CONNECTED && !reconnecting) {
|
||||
|
||||
if (!isMessageDisplayed && millis() - lastUpdateTime >= refreshRate) {
|
||||
lastUpdateTime = millis();
|
||||
|
||||
update_power_values();
|
||||
}
|
||||
|
||||
}
|
||||
}
|
||||
31
src/settings.h
Normal file
31
src/settings.h
Normal file
@@ -0,0 +1,31 @@
|
||||
#include <Arduino.h>
|
||||
#ifndef SETTINGS_H
|
||||
#define SETTINGS_H
|
||||
|
||||
|
||||
// ######################## WLAN-Daten ########################
|
||||
|
||||
const char* hostname = "ESP8266_Energiemeter";
|
||||
|
||||
const char* ssidList[] = {
|
||||
"SSID_1", // Netzwerk 1
|
||||
"SSID_2", // Netzwerk 2
|
||||
"SSID_3" // Netzwerk 3
|
||||
// Weitere SSID hier hinzufügen
|
||||
};
|
||||
|
||||
const char* passwordList[] = {
|
||||
"Passwort_1", // Passwort für SSID 1
|
||||
"Passwort_2", // Passwort für SSID 2
|
||||
"Passwort_3" // Passwort für SSID 3
|
||||
// Weitere Passwörter hier hinzufügen
|
||||
};
|
||||
|
||||
// ####################### Tasmota IPs ########################
|
||||
|
||||
String ip_netzbezug = "192.168.178.236";
|
||||
String ip_erzeugung = "192.168.178.237";
|
||||
|
||||
// ############################################################
|
||||
|
||||
#endif // SETTINGS_H
|
||||
11
test/README
Normal file
11
test/README
Normal file
@@ -0,0 +1,11 @@
|
||||
|
||||
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
|
||||
Reference in New Issue
Block a user