mirror of
https://codeberg.org/mclemens/hr50-remote-display.git
synced 2024-06-27 10:05:26 +00:00
93 lines
2.7 KiB
C++
93 lines
2.7 KiB
C++
#include <WiFi.h>
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#include <HTTPClient.h>
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#include "Arduino.h"
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#include "heltec.h"
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#include <ArduinoJson.h>
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const char* ssid = "<WIFI-SSID>";
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const char* password = "<WIFI-PASSWORD>";
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String api_url = "http://192.168.99.193:5000/status";
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int first_row = 0;
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int second_row = 24;
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int third_row = 48;
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void setup() {
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Heltec.begin(true /*DisplayEnable Enable*/, false /*LoRa Disable*/, false /*Serial Enable*/);
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Heltec.display->flipScreenVertically();
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WiFi.begin(ssid, password);
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delay(4000);
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}
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void printError(String err){
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Heltec.display->clear();
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Heltec.display->setFont(DialogInput_plain_16);
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Heltec.display->setTextAlignment(TEXT_ALIGN_LEFT);
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Heltec.display->drawString(0, second_row, err );
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Heltec.display->display();
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}
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void loop() {
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//Check WiFi connection status
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if (WiFi.status() == WL_CONNECTED) {
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HTTPClient http;
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String payload = "";
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http.begin(api_url.c_str());
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// Send HTTP GET request
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int httpResponseCode = http.GET();
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if (httpResponseCode > 0) {
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payload = http.getString();
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}
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else {
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printError("HTTPError: " + (String)httpResponseCode);
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}
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// Free resources
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http.end();
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StaticJsonDocument<200> doc;
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deserializeJson(doc, payload);
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JsonObject obj = doc.as<JsonObject>();
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if ( obj != NULL and obj["PTT"].as<String>() != "ERR") {
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String band = obj["BND"].as<String>();
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String pep = obj["PEP"].as<String>();
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String avg = obj["AVG"].as<String>();
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String swr = obj["SWR"].as<String>();
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String voltage = obj["VLT"].as<String>();
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String power = pep + "W/" + avg + "W";
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String ptt = obj["PTT"].as<String>();
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String temp = obj["TMP"].as<String>();
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// clear the display
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Heltec.display->clear();
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Heltec.display->setFont(DialogInput_plain_16);
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// print left column
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Heltec.display->setTextAlignment(TEXT_ALIGN_LEFT);
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Heltec.display->drawString(0, first_row, band );
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Heltec.display->drawString(0, second_row, power );
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Heltec.display->drawString(0, third_row, voltage );
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// print right column
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Heltec.display->setTextAlignment(TEXT_ALIGN_RIGHT);
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Heltec.display->drawString(128, first_row, swr );
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Heltec.display->drawString(128, second_row, ptt );
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Heltec.display->drawString(128, third_row, temp );
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Heltec.display->display();
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}
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else
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{
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// print a "(!)" centered in the third row
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// this happens when the TRX/PA is transmitting
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// or otherwise an empty response was send by the API
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Heltec.display->setFont(DialogInput_plain_16);
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Heltec.display->setTextAlignment(TEXT_ALIGN_LEFT);
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Heltec.display->drawString(58, third_row, "(!)" );
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Heltec.display->display();
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}
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}
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else {
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printError("No WiFi!");
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}
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}
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