mirror of
https://github.com/0x1d/esp8266-laser.git
synced 2025-12-15 18:38:20 +01:00
463 lines
12 KiB
C++
463 lines
12 KiB
C++
/*
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https://github.com/0x1d/esp8266-laser
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*/
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#include <ESP8266WiFi.h>
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#include <WiFiClient.h>
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#include <ESP8266WebServer.h>
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#include <ESP8266mDNS.h>
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#include <FS.h>
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#include <SoftwareSerial.h>
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#include <ArduinoJson.h>
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/*
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some hard coded config, change if needed
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*/
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// Set how long the esp should try to connect to a network before starting it's own AP
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int wifiTimeout = 15000; //ms
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// Hardcoded Soft AP network parameters
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char *ssidAP = "laserAp";
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IPAddress apIP(192, 168, 4, 1);
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IPAddress netMsk(255, 255, 255, 0);
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// this is sent to server if invalid request
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const char *metaRefreshStr = "<head><meta http-equiv=\"refresh\" content=\"3; url=/index.html\" /></head><body><p>redirecting...</p></body>";
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/* hostname for mDNS. Should work at least on windows. Try http://esp8266.local */
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const char *myHostname = "esplaser";
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// espsoftwareserial
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// SoftwareSerial(int receivePin, int transmitPin, bool inverse_logic = false, unsigned int buffSize = 64);
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SoftwareSerial laserSerial(14, 12, false, 256);
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/*
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End of hard coded config
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*/
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String ssid = "";
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String password = "";
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int apMode = 1; // default value, will be overwriten with config from file
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int _apMode = 0; // runtime apMode
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// [0] laser[1] m1 [2] m2 [3] m3
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byte lmValues[4] = {0, 0, 0, 0};
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unsigned long previousMillis = 0;
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// Web server
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ESP8266WebServer server(80);
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//format bytes
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String formatBytes(size_t bytes) {
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if (bytes < 1024) {
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return String(bytes) + "B";
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} else if (bytes < (1024 * 1024)) {
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return String(bytes / 1024.0) + "KB";
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} else if (bytes < (1024 * 1024 * 1024)) {
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return String(bytes / 1024.0 / 1024.0) + "MB";
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} else {
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return String(bytes / 1024.0 / 1024.0 / 1024.0) + "GB";
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}
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}
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String getContentType(String filename) {
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if (server.hasArg("download")) return "application/octet-stream";
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else if (filename.endsWith(".htm")) return "text/html";
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else if (filename.endsWith(".html")) return "text/html";
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else if (filename.endsWith(".ini")) return "text/plain";
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else if (filename.endsWith(".css")) return "text/css";
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else if (filename.endsWith(".js")) return "application/javascript";
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else if (filename.endsWith(".png")) return "image/png";
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else if (filename.endsWith(".gif")) return "image/gif";
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else if (filename.endsWith(".jpg")) return "image/jpeg";
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else if (filename.endsWith(".ico")) return "image/x-icon";
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else if (filename.endsWith(".xml")) return "text/xml";
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else if (filename.endsWith(".pdf")) return "application/x-pdf";
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else if (filename.endsWith(".zip")) return "application/x-zip";
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else if (filename.endsWith(".gz")) return "application/x-gzip";
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return "text/plain";
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}
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bool handleFileRead(String path) {
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Serial.println("handleFileRead: " + path);
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if (path.endsWith("/")) path += "index.html";
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String contentType = getContentType(path);
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String pathWithGz = path + ".gz";
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if (SPIFFS.exists(pathWithGz) || SPIFFS.exists(path)) {
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if (SPIFFS.exists(pathWithGz))
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path += ".gz";
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File file = SPIFFS.open(path, "r");
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size_t sent = server.streamFile(file, contentType);
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file.close();
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return true;
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}
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return false;
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}
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void handleFileList() {
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if (!server.hasArg("dir")) {
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server.send(500, "text/plain", "BAD ARGS");
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return;
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}
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String path = server.arg("dir");
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Serial.println("handleFileList: " + path);
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Dir dir = SPIFFS.openDir(path);
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path = String();
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String output = "[";
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while (dir.next()) {
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File entry = dir.openFile("r");
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if (output != "[") output += ',';
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bool isDir = false;
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output += "{\"type\":\"";
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output += (isDir) ? "dir" : "file";
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output += "\",\"name\":\"";
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output += String(entry.name()).substring(1);
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output += "\"}";
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entry.close();
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}
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output += "]";
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server.send(200, "text/json", output);
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}
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void handleLaser(String uri)
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{
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String laserValue = uri.substring(7);
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if (laserValue.toInt() > 128) {
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lmValues[0] = 128;
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laserValue = "128";
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}
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else
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{
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lmValues[0] = laserValue.toInt();
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}
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String msg = "AT SLV ";
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msg += laserValue;
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Serial.println("Sent to Laser: " + msg);
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laserSerial.println(msg);
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String json = "{ \"handledLaser\":";
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json += "{\"value\":\"" + laserValue + "\"}}";
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//server.send(200, "text/plain", "blub");
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server.send(200, "text/json", json);
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json = String();
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}
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void handleMotor(String uri)
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{
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String motorNr = uri.substring(7, 8);
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String motorValue = uri.substring(9);
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if (motorValue.toInt() > 128) {
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lmValues[motorNr.toInt()] = 128;
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motorValue = "128";
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}
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else
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{
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lmValues[motorNr.toInt()] = motorValue.toInt();
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}
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String msg = "AT SMS ";
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msg += motorNr;
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msg += " ";
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msg += motorValue;
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Serial.println("Sent to Laser: " + msg);
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laserSerial.println(msg);
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String json = "{ \"handledMotor\": ";
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json += "{ \"motor\":\"" + motorNr + "\", ";
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json += "\"value\":\"" + motorValue + "\" }}";
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//server.send(200, "text/plain", "blub");
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server.send(200, "text/json", json);
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json = String();
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}
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void handleReadValues()
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{
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String json = "{ \"handledReadValues\":";
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json += "{\"laser\":\"" + (String)lmValues[0] + "\",";
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json += "\"motors\": {\"1\":\"" + (String)lmValues[1] + "\",";
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json += "\"2\":\"" + (String)lmValues[2] + "\",";
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json += "\"3\":\"" + (String)lmValues[3] + "\"}}}";
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server.send(200, "text/json", json);
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json = String();
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}
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void hReadWifi()
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{
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// Serial.println("hReadWifi");
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String responseBuffer = String();
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StaticJsonBuffer<200> jsonBuffer;
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JsonObject& root = jsonBuffer.createObject();
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JsonObject& data = root.createNestedObject("wificonfig");
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data["apMode"] = apMode;
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data["SSID"] = ssid;
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data["Password"] = "***"; //password;
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//data["save"] = "false";
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//data["apply"] = "false";
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root.prettyPrintTo(responseBuffer);
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//root.prettyPrintTo(Serial);
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server.send(200, "text/json", responseBuffer);
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jsonBuffer.clear();
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responseBuffer = String();
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}
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void hWriteWifi()
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{
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// Serial.println("hWriteWifi");
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String responseBuffer = String();
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boolean save = false;
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boolean apply = false;
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StaticJsonBuffer<200> jsonBuffer;
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JsonObject& root = jsonBuffer.createObject();
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JsonObject& data = root.createNestedObject("wificonfig");
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if (server.hasArg("apMode") ) {
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apMode = server.arg("apMode").toInt();
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data["apMode"] = apMode;
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}
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if (server.hasArg("SSID") ) {
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ssid = server.arg("SSID");
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data["SSID"] = ssid;
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}
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if (server.hasArg("password") ) {
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password = server.arg("password");
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data["Password"] = "***"; //password;
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}
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if (server.arg("save") == "true")
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{
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save = true;
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data["save"] = "true";
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}
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if (server.arg("apply") == "true")
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{
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apply = true;
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data["apply"] = "true";
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}
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root.prettyPrintTo(responseBuffer);
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//root.prettyPrintTo(Serial);
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server.send(200, "text/json", responseBuffer);
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if (save) {
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saveConfigFile();
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}
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if (apply) {
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setupWifi();
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}
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jsonBuffer.clear();
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responseBuffer = String();
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}
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bool saveConfigFile() {
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StaticJsonBuffer<200> jsonBuffer;
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JsonObject& json = jsonBuffer.createObject();
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json["apMode"] = apMode;
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json["SSID"] = ssid;
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json["Password"] = password;
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File configFile = SPIFFS.open("/wifi.json", "w");
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if (!configFile) {
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Serial.println("Failed to open config file for writing");
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return false;
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}
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json.printTo(configFile);
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return true;
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}
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void handleSaveConf() {
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bool success = saveConfigFile();
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if (success)
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{
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server.send(200, "text/plain", "saved config to file,<br> reset or /resetwifi to apply settings");
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}
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else
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{
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server.send(500, "text/plain", "error saving file");
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}
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}
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boolean readConfigFile() {
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Serial.println("Reading wifi.json");
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File configFile = SPIFFS.open("/wifi.json", "r");
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if (!configFile) {
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Serial.println("Failed to open config file");
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return false;
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}
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size_t size = configFile.size();
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if (size > 1024) {
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Serial.println("Config file size is too large");
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return false;
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}
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// Allocate a buffer to store contents of the file.
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std::unique_ptr<char[]> buf(new char[size]);
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configFile.readBytes(buf.get(), size);
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StaticJsonBuffer<200> jsonBuffer;
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JsonObject& json = jsonBuffer.parseObject(buf.get());
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if (!json.success()) {
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Serial.println("Failed to parse config file");
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return false;
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}
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apMode = json["apMode"];
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apMode = apMode;
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const char* tSsid = json["SSID"];
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const char* tPwd = json["Password"];
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ssid = tSsid;
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password = tPwd;
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Serial.print("SSID: ");
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Serial.println(ssid);
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Serial.print("PW: ");
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Serial.println(password);
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return true;
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}
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boolean setupWifi() {
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Serial.print("setupWifi apMode=");
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Serial.println(apMode);
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if (_apMode == 0)
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{
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Serial.print("Connecting to ");
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Serial.println(ssid);
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WiFi.mode(WIFI_STA);
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WiFi.begin(ssid.c_str(), password.c_str());
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previousMillis = millis();
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while (WiFi.status() != WL_CONNECTED) {
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delay(500);
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Serial.print(".");
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if (millis() - previousMillis >= wifiTimeout) {
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Serial.println("");
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Serial.println("connection timedout");
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return false;
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}
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}
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Serial.println("");
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Serial.println("WiFi connected");
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Serial.println("IP address: ");
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Serial.println(WiFi.localIP());
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return true;
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}
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else
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{
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Serial.printf("Starting SoftAP %s\n", ssidAP);
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WiFi.mode(WIFI_AP);
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WiFi.softAP(ssidAP);
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Serial.print("SoftAP started! IP address: ");
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Serial.println ( WiFi.softAPIP() );
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return true;
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}
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}
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void setup(void) {
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laserSerial.begin(9600);
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laserSerial.flush();
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Serial.begin(115200);
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Serial.print("\n");
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SPIFFS.begin();
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// {
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// Dir dir = SPIFFS.openDir("/");
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// while (dir.next()) {
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// String fileName = dir.fileName();
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// size_t fileSize = dir.fileSize();
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// Serial.printf("FS File: %s, size: %s\n", fileName.c_str(), formatBytes(fileSize).c_str());
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// }
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// Serial.printf("\n");
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// }
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//WIFI INIT
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WiFi.disconnect();
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delay(100);
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if (!readConfigFile())
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{
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Serial.println("reading wifi config failed, start SoftAP");
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_apMode = 1;
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}
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delay(100);
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if (!setupWifi())
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{
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Serial.println("connect failed, start SoftAP");
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_apMode = 1; // fallback to AP mode
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setupWifi();
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}
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// Setup MDNS responder
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if (!MDNS.begin(myHostname)) {
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Serial.println("Error setting up MDNS responder!");
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} else {
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Serial.println("mDNS responder started");
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// Add service to MDNS-SD
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MDNS.addService("http", "tcp", 80);
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}
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//SERVER INIT
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//list directory
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server.on("/listFiles", HTTP_GET, handleFileList);
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server.on("/saveconf", HTTP_GET, handleSaveConf);
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server.on("/resetwifi", HTTP_GET, setupWifi);
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server.on("/wificonfig", HTTP_GET, hReadWifi);
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server.on("/wificonfig", HTTP_POST, hWriteWifi);
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// server.on("/wificonfig", HTTP_POST, []() {
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// hWriteWifi();
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// });
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server.on("/readvalues", HTTP_GET, handleReadValues);
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server.on("/heap", HTTP_GET, []() {
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String json = "{";
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json += "\"heap\":" + String(ESP.getFreeHeap());
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json += "}";
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server.send(200, "text/json", json);
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json = String();
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});
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server.onNotFound(handleNotFound);
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server.begin();
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Serial.println("HTTP server started");
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}
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void handleNotFound() {
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String uri = server.uri();
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Serial.print("unhandled uri:");
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Serial.println(uri);
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if (uri.substring(0, 7) == "/motor/")
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{
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handleMotor(uri);
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return;
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}
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if (uri.substring(0, 7) == "/laser/")
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{
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handleLaser(uri);
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return;
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}
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if (uri.substring(0, 12) == "/wifi.json")
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{
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server.send(403, "text/plain", "Forbidden");
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return;
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}
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if (!handleFileRead(server.uri()))
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{
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server.send(404, "text/html", metaRefreshStr);
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// server.send(302, "text/plain", "blub");
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}
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}
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void loop(void) {
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server.handleClient();
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}
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