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--- esp32 [2024/10/20 11:57] – bruno
+++ esp32 [2025/08/29 14:08] (current) – removed bruno
@@ Line 1: / Line 1: @@
-==== Préambule ====
-Les vidéos de Tommy Desrochers:
-  * [[https://www.youtube.com/watch?v=zqwnYuOLvsE|ESP32 #1]]
-  * [[https://www.youtube.com/watch?v=U4GaKrsXlPc|ESP32 #2]]
-  * [[https://www.youtube.com/watch?v=J557GmCArrc|ESP32 #3]]
-  * [[https://www.youtube.com/watch?v=DDMQbqPUliY|ESP32 #4]]
-  * [[https://www.youtube.com/watch?v=LkxCr_n3JOw|ESP32 #5]]
-==== Installation ====
-=== Install config sous Linux ===
-Sous Debian 13, lors du 1er test, j'ai reçu ces deux messages d'erreur:
-  * Error Msg: ''ModuleNotFoundError: No module named 'serial'''
-  * Error msg: ''Failed uploading: no upload port provided''
-On va donc, d'abord:
-  * ''# apt install python3-serial''
-  * ''# /sbin/usermod -aG dialout <USER>'' + reboot
-Suivi de l'installation proprement dite :
-  * Download Aduino IDE: [[https://www.arduino.cc/en/software]]
-  * Unzip : ''$ unzip arduino[...]''
-  * Launch : ''$ cd arduino[...]'', ''$ ./arduino-ide''
-  * Menu File -> Preferences -> Additional boards manager URLs: https://raw.githubusercontent.com/espressif/arduino-esp32/gh-pages/package_esp32_index.json
-  * Menu Tools -> Board -> Board Manager... -> search with ESP32, select de most recent version of ESP32 by Espressif Systems, and Install
-  * Menu Tools -> Board -> Esp32 -> ESP32 Dev Module
-  * Menu Tools -> Port -> /dev/ttyUSB0
-==== Test ====
-  *  Menu File -> example -> ESP32 -> ChipID -> GetChipID
-  * Upload: Menu Sketch -> Upload
-  * Menu Tools -> Serial Monitor
-  * Change to 115200 Baud
-<code>
-ESP32 Chip model = ESP32-D0WDQ6 Rev 101
-This chip has 2 cores
-Chip ID: 11493932
-</code>
-  * [[https://gist.github.com/plembo/37e0d4c3cabaead6a150e61d6a8c3035]]
-==== K2000 ====
-[26/09/2014]
-<code c>
-#include <math.h>
-const float pi = 3.14159;
-// Suite illogique des pins GPIO
-// /!\ GPIO-1 en OUTPUT -> conflit avec sortie Serial
-const int ledPin[7] = {5,18,19,21,3,22,23};
-void setup() {
-  Serial.begin(115200);
-  while (!Serial) continue;
-  Serial.println("Ready.");
-  for (int i=0; i<7; i++) {
-    pinMode (ledPin[i], OUTPUT);
-  }
-}
-void loop() {
-  for (float ang=-pi; ang<pi; ang=ang+(2*pi/700)) {
-    int led = (1+std::sin(ang))*7/2;
-    //Serial.print(led);
-    digitalWrite (ledPin[led], HIGH);
-    delay(1);
-    digitalWrite (ledPin[led], LOW);
-  }
-  //Serial.println();
-}
-</code>
-==== Client Wifi ====
-<code c>
-#include <WiFi.h>
-void setup() {
-  Serial.begin(115200);
-  while (!Serial) continue;
-  WiFi.begin("SSID", "P4sswOrd");
-  while (WiFi.status() != WL_CONNECTED) delay(500);
-  Serial.print("IP address:");
-  Serial.println(WiFi.localIP());
-}
-void loop() {
-  if (WiFi.status() == WL_CONNECTED) {
-    Serial.println("Connected to Wifi.");
-  } else {
-    Serial.println("WiFi connection lost.");
-  }
-  delay(1000);
-}
-</code>
-==== Client HTTP ====
-<code c>
-#include <WiFi.h>
-#include <HTTPClient.h>
-void setup() {
-  Serial.begin(115200);
-  while (!Serial) continue;
-  WiFi.begin("SSID", "P4ssw0rd");
-  while (WiFi.status() != WL_CONNECTED) delay(500);
-  Serial.println("Connected to Wifi.");
-  HTTPClient http;
-  Serial.print("Get https://example.com... ");
-  http.begin("https://example.com");
-  int httpCode = http.GET();
-  if (httpCode == HTTP_CODE_OK) {
-    Serial.println(http.getString());
-  } else {
-    Serial.printf("failed, error: %s\n", http.errorToString(httpCode).c_str());
-  }
-  http.end();
-}
-void loop() {
-}
-</code>
-==== Server HTTP ===
-<code c>
-#include <WiFi.h>
-#include <WebServer.h>
-//#include <ESPmDNS.h>
-const char *ssid = "Your SSID";
-const char *password = "P4sswOrd";
-WebServer server(80);
-void handleRoot() {
-  String html = "<!DOCTYPE html>";
-  html += "<html>\n";
-  html += "<head>\n";
-  html += "<title>Server ESP32</title>\n";
-  html += "</head>\n";
-  html += "<body>\n";
-  html += "<h1>Hello world</h1>\n";
-  html += "</body>\n";
-  html += "</html>";
-  server.send(200, "text/html", html);
-}
-void setup(void) {
-  Serial.begin(115200);
-  while (!Serial) continue;
-  WiFi.begin(ssid, password);
-  while (WiFi.status() != WL_CONNECTED) delay(500);
-  Serial.print("Connected to ");
-  Serial.println(ssid);
-  Serial.print("IP address: ");
-  Serial.println(WiFi.localIP());
-  //if (MDNS.begin("esp32")) {
-  //  Serial.println("MDNS responder started");
-  //}
-  server.on("/", handleRoot);
-  server.onNotFound([]() {
-    server.send(404, "text/plain", "Not Found");
-  });
-  server.begin();
-  Serial.println("HTTP server started");
-}
-void loop(void) {
-  server.handleClient();
-  delay(2);  //allow the cpu to switch to other tasks
-}
-</code>
-==== Client REST API ====
-<code c>
-#include <WiFi.h>
-#include <HTTPClient.h>
-#include <ArduinoJson.h>
-void setup() {
-  Serial.begin(115200);
-  while (!Serial) delay(100);
-  WiFi.begin("SSID", "P4ssw0rd");
-  while (WiFi.status() != WL_CONNECTED) delay(500);
-  Serial.println("Connected.");
-}
-void loop() {
-  if (WiFi.status() == WL_CONNECTED) {
-    HTTPClient http;
-    // https://docs.kraken.com/api/docs/rest-api/get-ticker-information
-    http.begin("https://api.kraken.com/0/public/Ticker?pair=XXBTZEUR");
-    int httpCode = http.GET();
-    if (httpCode == HTTP_CODE_OK) {
-      String response = http.getString();
-      JsonDocument doc;
-      DeserializationError error = deserializeJson(doc, response);
-      if (error) {
-        Serial.print(F("deserializeJson() failed: "));
-        Serial.println(error.f_str());
-      } else {
-        Serial.print("BTC: ");
-        Serial.println(doc["result"]["XXBTZEUR"]["c"][0].as<double>());
-      }
-    } else {
-      Serial.printf("failed, error: %i %s\n", httpCode, http.errorToString(httpCode).c_str());
-    }
-    http.end();
-  } else {
-    Serial.println("Network unreachable");
-  }
-  delay(5000);
-}
-</code>
-==== Thread ====
-<code c>
-#include <WiFi.h>
-#include <WebServer.h>
-#include <HTTPClient.h>
-#include <ArduinoJson.h>
-#include <Thread.h>
-const char *ssid = ".....";
-const char *password = ".....";
-float btc;
-Thread myThread = Thread();
-void getBtcFromKraken() {
-  HTTPClient http;
-  http.begin("https://api.kraken.com/0/public/Ticker?pair=XXBTZEUR");
-  int httpCode = http.GET();
-  if (httpCode == HTTP_CODE_OK) {
-    String response = http.getString();
-    JsonDocument doc;
-    DeserializationError error = deserializeJson(doc, response);
-    if (!error) {
-      btc = doc["result"]["XXBTZEUR"]["c"][0].as<float>();
-      Serial.print("BTC: ");
-      Serial.println(btc);
-    }
-  }
-  http.end();
-}
-WebServer server(80);
-void handleRoot() {
-  String html = "BTC = " + String(btc);
-  server.send(200, "text/plain", html);
-}
-void setup(void) {
-  Serial.begin(115200);
-  WiFi.begin(ssid, password);
-  while (WiFi.status() != WL_CONNECTED) delay(500);
-  Serial.print("Connected to ");
-  Serial.println(ssid);
-  Serial.print("IP address: ");
-  Serial.println(WiFi.localIP());
-  //if (MDNS.begin("esp32")) {
-  //  Serial.println("MDNS responder started");
-  //}
-  myThread.onRun(getBtcFromKraken);
-  myThread.setInterval(10000);
-  myThread.run();
-  server.on("/", handleRoot);
-  server.onNotFound([]() {
-    server.send(404, "text/plain", "Not Found");
-  });
-  server.begin();
-  Serial.println("HTTP server started");
-}
-void loop(void) {
-  if (myThread.shouldRun()) myThread.run();
-  Serial.print(".");
-  server.handleClient();
-  delay(500);  //allow the cpu to switch to other tasks
-}
-</code>