From a3dcb139db51cdc5c873b062f9d0b45c519cfc99 Mon Sep 17 00:00:00 2001
From: Arne van Iterson <arne@arnweb.nl>
Date: Sun, 16 Feb 2020 12:00:22 +0100
Subject: [PATCH] First commit

---
 M5_ARNweb.ino | 207 ++++++++++++++++++++++++++++++++++++++++++++++++++
 README.md     |   4 +
 2 files changed, 211 insertions(+)
 create mode 100644 M5_ARNweb.ino
 create mode 100644 README.md

diff --git a/M5_ARNweb.ino b/M5_ARNweb.ino
new file mode 100644
index 0000000..813bbe1
--- /dev/null
+++ b/M5_ARNweb.ino
@@ -0,0 +1,207 @@
+#include <M5Stack.h>
+#include <WifiJson.h>
+#include <HTTPClient.h>
+#include <ArduinoJson.h>
+
+// New instance of WifiJson, silent is false, it will log to the M5Stacks screen
+WifiJson wifi(false);
+HTTPClient http;
+StaticJsonDocument<1000> data;
+char *jsonRes;
+
+// 'ram', 15x10px
+const unsigned char ram [] PROGMEM = {
+  0xff, 0x7f, 0x01, 0x40, 0x6d, 0x5b, 0x6d, 0x5b, 0x6d, 0x5b, 0x6d, 0x5b,
+  0x01, 0x40, 0xc1, 0x41, 0x55, 0x55, 0x7f, 0x7f
+};
+// 'hdd', 14x12px
+const unsigned char hdd[] = {
+  0xfc, 0x0f, 0x02, 0x10, 0x02, 0x10, 0x02, 0x10, 0x02, 0x10, 0x01, 0x20,
+  0x01, 0x20, 0xff, 0x3f, 0x01, 0x20, 0x55, 0x29, 0x55, 0x21, 0xff, 0x3f 
+};
+// 'swap', 13x13px
+const unsigned char swap [] PROGMEM = {
+	0xff, 0x00, 0xff, 0x00, 0xff, 0x00, 0xff, 0x00, 0xff, 0x00, 0xff, 0x1f,
+  0xff, 0x10, 0xff, 0x10, 0x20, 0x10, 0x22, 0x10, 0x26, 0x10, 0x22, 0x10,
+  0xe0, 0x1f
+};
+// 'temp', 7x14px
+const unsigned char temp [] PROGMEM = {
+	0x1c, 0x36, 0x22, 0x22, 0x2a, 0x2a, 0x2a, 0x2a, 0x2a, 0x49, 0x5d, 0x49,
+  0x22, 0x1c
+};
+
+const char* ca = \
+"-----BEGIN CERTIFICATE-----\n" \
+"MIIFlTCCBH2gAwIBAgISA5tHKDD+RZnTEVnc4cB00DmoMA0GCSqGSIb3DQEBCwUA\n" \
+"MEoxCzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MSMwIQYDVQQD\n" \
+"ExpMZXQncyBFbmNyeXB0IEF1dGhvcml0eSBYMzAeFw0yMDAyMDIwMjMxNTNaFw0y\n" \
+"MDA1MDIwMjMxNTNaMBQxEjAQBgNVBAMTCWFybndlYi5ubDCCASIwDQYJKoZIhvcN\n" \
+"AQEBBQADggEPADCCAQoCggEBALYtO2ju+3IsvbMweL3sFFAcqHTA1w5X5TyzMNMT\n" \
+"1N6jorAj6h59HpY/m9WHFlqqx1vTamQhr9ssSJRrfZUKB4wWLAolfWzVb0xZehu6\n" \
+"KIXgxF0EMx+Nd2ug7WCSKUvh0xQWyDe5Qo4Fy0od5FQnLDqpoVixXbhH1IewQpSP\n" \
+"S4yyYU4dBOFEbGB0WGenZD1QoqFWEzKMaJWbgn3QoOtPnAls1f5Y76Msz9tp+AlR\n" \
+"s5qJWEOSYYFGCsjL3KIl5ML0CW6AqcRami1MQLaxUWm02sCKFrhfJSoDBr56UQLe\n" \
+"lbRSZhwZnfo7ZjBjYqdXtEmlFe4LkgJ7xZfKCgK9fz6oeOECAwEAAaOCAqkwggKl\n" \
+"MA4GA1UdDwEB/wQEAwIFoDAdBgNVHSUEFjAUBggrBgEFBQcDAQYIKwYBBQUHAwIw\n" \
+"DAYDVR0TAQH/BAIwADAdBgNVHQ4EFgQU5wPLlghu87XR3B7pmqDbYl+0zLswHwYD\n" \
+"VR0jBBgwFoAUqEpqYwR93brm0Tm3pkVl7/Oo7KEwbwYIKwYBBQUHAQEEYzBhMC4G\n" \
+"CCsGAQUFBzABhiJodHRwOi8vb2NzcC5pbnQteDMubGV0c2VuY3J5cHQub3JnMC8G\n" \
+"CCsGAQUFBzAChiNodHRwOi8vY2VydC5pbnQteDMubGV0c2VuY3J5cHQub3JnLzBi\n" \
+"BgNVHREEWzBZgg1hcGkuYXJud2ViLm5sgglhcm53ZWIubmyCDWRldi5hcm53ZWIu\n" \
+"bmyCD2dpdGVhLmFybndlYi5ubIIObmV4dC5hcm53ZWIubmyCDXd3dy5hcm53ZWIu\n" \
+"bmwwTAYDVR0gBEUwQzAIBgZngQwBAgEwNwYLKwYBBAGC3xMBAQEwKDAmBggrBgEF\n" \
+"BQcCARYaaHR0cDovL2Nwcy5sZXRzZW5jcnlwdC5vcmcwggEBBgorBgEEAdZ5AgQC\n" \
+"BIHyBIHvAO0AdADwlaRZ8gDRgkAQLS+TiI6tS/4dR+OZ4dA0prCoqo6ycwAAAXAD\n" \
+"9GbiAAAEAwBFMEMCHxM9P+xmvv54KfAnXPUi/ktr4y+71JT6J3SNK1btmoICIDj4\n" \
+"ixR9xXRdcpEEbXGiD2SNSYKo/smj1OOLVdxdl2OoAHUAsh4FzIuizYogTodm+Su5\n" \
+"iiUgZ2va+nDnsklTLe+LkF4AAAFwA/Rm1gAABAMARjBEAiApjqhGjDMeyUMi8QGa\n" \
+"OcM/D23MOxk5DrhAl4V3qHZHuwIgeBIpEQA8gnWTrbBXh5zk7OYQN9F7g1nHDeWq\n" \
+"Hx8VvPAwDQYJKoZIhvcNAQELBQADggEBACuCb/oAQM85nhAqhBZ2PvVduwQClbVF\n" \
+"3vhAXecoCzWNZfl7joCEjnQZyLdWtrmnK+EVZsAzyiK9/2e+dB8JC0xbO6KBb5/Y\n" \
+"uqwdtaq/nsjNa4UaUEIE2CDOUOYXptmMpq8zSpMSWGyKGABkTLDewrHK8mBaub5t\n" \
+"sBQyrdL6tlrzL5nsCmwrEgL83YZQUJWEuv5Egjf/D1xIjcv9CVp/1aG/dgBSCG9r\n" \
+"o0JzQTtjS2OybPs4QOXWWMo0yDVi20OVy85qIFNHLXAJPnZ9iUAa3gaqcUmtzdtS\n" \
+"pbTG+YNnvJ/ZtdWQSkqvkzY7siZ/Ze3RjhYRR+GPt+BLco7DkuZlPbE=\n" \
+"-----END CERTIFICATE-----\n";
+
+void setup() {
+  M5.begin();
+
+  /* 
+    Attempt connecting to a network using credentials in /wifi.json.
+    Will return false if connection fails
+  */
+  if (!wifi.begin("/wifi.json"))
+  {
+    Serial.println("This program requires a WiFi connection!");
+    M5.Lcd.println("This program requires a WiFi connection!");  
+    
+    // Do not let the program run 
+    while (true)
+    { }
+  }
+  Serial.println(wifi.ip);
+  M5.Lcd.println(wifi.ip);  
+
+  delay(500);
+  update();
+}
+
+void update() {
+  M5.Lcd.fillScreen(0x1082);
+  M5.Lcd.setCursor(0,0);
+
+  int httpCode = 0;
+  M5.Lcd.setTextSize(2);
+
+  http.begin("https://api.arnweb.nl/system", ca);
+  httpCode = http.GET();
+
+  if (httpCode > 0) {
+    M5.Lcd.fillScreen(0x1082);
+    deserializeJson(data, http.getStream());
+    
+    // Top nav
+    M5.Lcd.setTextColor(0xDEFB);
+    M5.Lcd.fillRect(0, 0, 320, 22, 0x2104);
+    M5.Lcd.setCursor(4,4);
+    M5.Lcd.println(data["hostname"].as<String>());
+
+    for (size_t i = 0; i < data["temp"]["cores"].size(); i++)
+    {
+      if (i == 1)
+      {
+        M5.Lcd.setCursor(166,32);
+        M5.Lcd.fillRoundRect(162, 28, 154, 56, 1, 0x2104);
+        M5.Lcd.drawXBitmap(305, 32, temp, 7, 14, TFT_WHITE);
+      } else {
+        M5.Lcd.setCursor(8,32);
+        M5.Lcd.fillRoundRect(4, 28, 154, 56, 1, 0x2104);
+        M5.Lcd.drawXBitmap(147, 32, temp, 7, 14, TFT_WHITE);
+      }
+      
+      M5.Lcd.setTextColor(0xDEFB);
+      M5.Lcd.print("Core ");
+      M5.Lcd.print(i);
+      M5.Lcd.print(": ");
+
+      if (i == 1)
+      {
+        M5.Lcd.setCursor(192,52);
+      } else {
+        M5.Lcd.setCursor(34,52);
+      }
+      M5.Lcd.setTextSize(4);
+
+      if (data["temp"]["cores"][i].as<int>() >= 75)
+      {
+        // Very hot
+        M5.Lcd.setTextColor(0xF0A6);
+      } else if (data["temp"]["cores"][i].as<int>() >= 55) {
+        // Meh
+        M5.Lcd.setTextColor(0xFDC9);
+      } else {
+        // Cool
+        M5.Lcd.setTextColor(0x1572);
+      }
+      
+      M5.Lcd.print(data["temp"]["cores"][i].as<String>());
+      M5.Lcd.print(char(247));
+      M5.Lcd.println("C");
+      M5.Lcd.setTextSize(2);
+    }
+
+    M5.Lcd.setTextColor(0xDEFB);
+    
+    // Memory Usage
+    M5.Lcd.fillRoundRect(4, 88, 312, 22, 1, 0x2104);
+    M5.Lcd.setCursor(8, 92);
+    M5.Lcd.drawXBitmap(297, 92, ram, 15, 10, TFT_WHITE);
+
+    M5.Lcd.print("Memory usage: ");
+    M5.Lcd.print((data["mem"]["active"].as<float>() / data["mem"]["total"].as<float>()) * 100);
+    M5.Lcd.println("%");
+
+    // Swap Usage
+    M5.Lcd.fillRoundRect(4, 114, 312, 22, 1, 0x2104);
+    M5.Lcd.setCursor(8, 118);
+    M5.Lcd.drawXBitmap(299, 118, swap, 13, 13, TFT_WHITE);
+
+    M5.Lcd.print("Swap usage: ");
+    M5.Lcd.print((data["mem"]["swapused"].as<float>() / data["mem"]["swaptotal"].as<float>()) * 100);
+    M5.Lcd.println("%");
+
+    // Disk Usage
+    M5.Lcd.fillRoundRect(4, 140, 312, 54, 1, 0x2104);
+    M5.Lcd.setCursor(8, 144);
+    M5.Lcd.drawXBitmap(298, 144, hdd, 14, 12, TFT_WHITE);
+
+    M5.Lcd.println("Disk usage: ");
+    for (size_t i = 0; i < data["fs"].size(); i++)
+    {
+      M5.Lcd.print("     " + data["fs"][i]["fs"].as<String>() + ": " + data["fs"][i]["use"].as<String>());
+      M5.Lcd.println("%");
+    }
+
+    // Bottom nav
+    M5.Lcd.fillRect(0, 218, 320, 22, 0x2104);
+    M5.Lcd.setCursor(126, 222);
+    M5.Lcd.println("Update");
+  } else {
+    M5.Lcd.print("HTTP Request Error: ");
+    M5.lcd.println(httpCode);
+  }
+
+  http.end();
+}
+
+void loop() {
+  if (M5.BtnB.wasPressed())
+  {
+    Serial.println("B");
+    update();
+  }
+
+  M5.update();
+}
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..d3c0d88
--- /dev/null
+++ b/README.md
@@ -0,0 +1,4 @@
+# M5_ARNweb
+## M5 interface for ARNweb API
+
+If you want to use this for some reason you need to run [ARNweb API](https://gitea.arnweb.nl/arne/arnweb-api) on a server over HTTPS. Then put the url to the ```/system``` subsection on line 98 and your CA certificate in the ```const char* ca``` on line 34.
\ No newline at end of file