add esp32 folder

iot/deeresp32/.gitignore

@@ -0,0 +1 @@
+*.bin

iot/deeresp32/RoboFile.php

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+<?php
+/**
+ * This is project's console commands configuration for Robo task runner.
+ *
+ * @see http://robo.li/
+ */
+class RoboFile extends \Robo\Tasks
+{
+    // define public methods as commands
+    public function text2hex()
+    {
+        $chars = utf8Split(file_get_contents('font.txt'));
+        $chars = array_unique($chars);
+        // sort($chars);
+        foreach ($chars as $char) {
+            if (strlen($char) > 0) {
+                echo '0x'.dechex(uniord($char)).',';
+            }
+            // break;
+        }
+    }
+}
+function utf8Split($str, $len = 1)
+{
+    $arr = array();
+    $strLen = mb_strlen($str, 'UTF-8');
+    for ($i = 0; $i < $strLen; $i++) {
+        $arr[] = mb_substr($str, $i, $len, 'UTF-8');
+    }
+    return $arr;
+}
+
+function uniord($u)
+{
+    $k = mb_convert_encoding($u, 'UCS-2LE', 'UTF-8');
+    $k1 = ord(substr($k, 0, 1));
+    $k2 = ord(substr($k, 1, 1));
+    return $k2 * 256 + $k1;
+}

iot/deeresp32/deeresp32.ino

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+#define WIFI_SSID ""
+#define WIFI_PASSWORD ""
+#define MQTT_CLIENT_NAME "DeerEsp-001234354x32" // 多个同名设备连接同一台服务器会导致其他下线，所以起一个唯一的名字吧
+#define MQTT_TOPIC "LB2312" // 这里填PushDeer的Key
+#define MQTT_IP "broker.emqx.io"
+#define MQTT_USER ""
+#define MQTT_PASSWORD ""
+#define MQTT_PORT 1883
+
+
+// ====== 以下不用修改 ===============
+#define DOWNLOADED_IMG "/download.jpg"
+#define AA_FONT_CUBIC "Cubic1112"
+
+
+#include <EspMQTTClient.h>
+
+EspMQTTClient mclient(
+  WIFI_SSID,
+  WIFI_PASSWORD,
+  MQTT_IP,  
+  MQTT_USER,   
+  MQTT_PASSWORD,  
+  MQTT_CLIENT_NAME, 
+  MQTT_PORT           
+);
+
+// #include "cubic_12.h"
+// #include "SPI.h"
+#include <TFT_eSPI.h> 
+TFT_eSPI tft = TFT_eSPI(); 
+
+#ifdef ESP8266
+  #include <ESP8266HTTPClient.h>
+  #define BEEP_PIN D8
+  #define IMG_SCALE 2
+  #define TXT_SCALE 2
+#else
+  #include "SPIFFS.h" // Required for ESP32 only
+  #define IMG_SCALE 2
+  #define TXT_SCALE 2
+  #define BEEP_PIN 22
+  #include <HTTPClient.h>
+#endif
+
+#include <TJpg_Decoder.h>
+
+void setup() {
+  Serial.begin(115200);
+  mclient.enableDebuggingMessages();
+
+  tft.begin();
+  pinMode(19, OUTPUT);
+  digitalWrite(19, HIGH);
+  // tft.setRotation(1); // 屏幕方向
+  tft.fillScreen(TFT_BLACK);
+  tft.setTextColor(0xFFFF,0x0000);tft.setCursor(0, 0, 1);tft.setTextSize(TXT_SCALE);tft.println("Init ...");
+  Serial.println("tft init");
+
+  if (!SPIFFS.begin()) {
+    Serial.println("SPIFFS initialisation failed!");
+    while (1) yield(); // Stay here twiddling thumbs waiting
+  }
+  Serial.println("SPIFFS init");
+
+  TJpgDec.setJpgScale(IMG_SCALE);
+  TJpgDec.setSwapBytes(true);
+  TJpgDec.setCallback(tft_output);
+
+  Serial.println("TJpgDec init");
+
+}
+
+void onConnectionEstablished()
+{
+  Serial.println("connected");
+  tft.setTextColor(0xFFFF,0x0000);tft.setCursor(0, 0, 1);tft.println("Waiting for messages ...");
+
+  mclient.subscribe(String(MQTT_TOPIC)+"_text", [] (const String &payload)  
+  {
+    Serial.println(payload);
+
+    if (SPIFFS.exists(DOWNLOADED_IMG) == true) TJpgDec.drawFsJpg(0, 0, DOWNLOADED_IMG);
+    else tft.fillScreen( TFT_BLACK );
+
+    tft.loadFont(AA_FONT_CUBIC);
+    // tft.loadFont(cubic_11);
+
+
+    if( payload.length() > 80 ) tft.setTextSize(TXT_SCALE/2);
+    else tft.setTextSize(TXT_SCALE);
+
+    char *found;
+    short line = 0;
+    int base = 5;
+    int now_base = 0;
+    char * payloads = const_cast<char*> ( payload.c_str() );
+    while( (found = strsep( &payloads , "\n" ) ) != NULL )
+    {
+      now_base = base + line*14;
+      tft.setTextColor(0x0000);tft.setCursor(base+1, now_base+1);tft.println(found);
+      tft.setTextColor(0xFFFF);tft.setCursor(base, now_base);tft.println(found);
+      line++;
+
+    }
+
+    tft.unloadFont();
+
+    #ifdef BEEP_PIN
+    if(payload.indexOf("♪") >= 0) tone(BEEP_PIN, 1000, 100);
+    #endif
+
+
+  });
+
+  mclient.subscribe(String(MQTT_TOPIC)+"_bg_url", [] (const String &payload)  
+  {
+    Serial.println(payload);
+    bool ret = file_put_contents(payload, DOWNLOADED_IMG);
+    if (SPIFFS.exists(DOWNLOADED_IMG) == true) {
+      TJpgDec.drawFsJpg(0, 0, DOWNLOADED_IMG);
+    }
+  });  
+}
+
+void loop() {
+  mclient.loop();
+}
+
+bool file_put_contents(String url, String filename) {
+
+  Serial.println("Downloading "  + filename + " from " + url);
+
+  // Check WiFi connection
+  if (WiFi.status() == WL_CONNECTED) {
+
+    Serial.print("[HTTP] begin...\n");
+
+    WiFiClient client;
+    HTTPClient http;
+    http.setFollowRedirects(HTTPC_STRICT_FOLLOW_REDIRECTS);
+    http.begin(client, url);
+
+
+    Serial.print("[HTTP] GET...\n");
+    int httpCode = http.GET();
+    if (httpCode > 0) {
+      fs::File f = SPIFFS.open(filename, "w+");
+      if (!f) {
+        Serial.println("file open failed");
+        return 0;
+      }
+      Serial.printf("[HTTP] GET... code: %d\n", httpCode);
+      if (httpCode == HTTP_CODE_OK) {
+
+        int total = http.getSize();
+        int len = total;
+
+        uint8_t buff[128] = { 0 };
+        WiFiClient * stream = http.getStreamPtr();
+
+        while (http.connected() && (len > 0 || len == -1)) {
+          size_t size = stream->available();
+
+          if (size) {
+            int c = stream->readBytes(buff, ((size > sizeof(buff)) ? sizeof(buff) : size));
+
+            f.write(buff, c);
+
+            if (len > 0) {
+              len -= c;
+            }
+          }
+          yield();
+        }
+        Serial.println();
+        Serial.print("[HTTP] connection closed or file end.\n");
+      }
+      f.close();
+    }
+    else {
+      Serial.printf("[HTTP] GET... failed, error: %s\n", http.errorToString(httpCode).c_str());
+      Serial.print(httpCode);
+
+    }
+    http.end();
+  }
+  return 1; 
+}
+
+bool tft_output(int16_t x, int16_t y, uint16_t w, uint16_t h, uint16_t* bitmap)
+{
+  if ( y >= tft.height() ) return 0;
+  tft.pushImage(x, y, w, h, bitmap);
+  return 1;
+}
+
+#ifdef ESP32
+void tone(byte pin, int freq, int timeout) {
+  ledcSetup(0, 2000, 8); // setup beeper
+  ledcAttachPin(pin, 0); // attach beeper
+  ledcWriteTone(0, freq); // play tone
+  delay(timeout);
+  ledcWriteTone(0, 0);
+
+}
+#endif

iot/deeresp32/font.2000.txt

@@ -0,0 +1,17 @@
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+⑿⒀⒁⒂⒃⒄⒅⒆⒇①②③④⑤⑥⑦
+⑧⑨⑩㈠㈡㈢㈣㈤㈥㈦㈧㈨㈩
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