initial commit

Author: rlueckl

.gitignore

@@ -0,0 +1 @@
+mySettings.h

README.md

@@ -1,2 +1,5 @@
 # espcounter
 Client to count up a specific number and display it on a 7-segment display
+
+Server part is: [rlueckl/espdisplay](https://github.com/rlueckl/espdisplay)
+Needs library from: [Mottramlabs/MAX7219-8-Digit-7-Segment-LED-Driver-For-Arduino-ESP8266](https://github.com/Mottramlabs/MAX7219-8-Digit-7-Segment-LED-Driver-For-Arduino-ESP8266)

espcounter.ino

@@ -0,0 +1,158 @@
+/*
+40000000 / year
+6.342 / 5 sec
+1.268 / sec
+*/
+
+#include <SPI.h>
+#include <ESP8266WiFi.h>
+#include <ESP8266HTTPClient.h>
+
+#define MAX7219_NUM_CHIPS   1  // 3 chips = 24 digits
+#define MAX7219_CS_PIN     15  // pin the MAX7219's CS pin is connected to
+#define MAX7219_BRIGHTNESS  3  // brightness level 0-15
+
+#include <MAX7219_8_Digit_Driver.h>
+
+MAX7219_8_Digit_Driver my_display(MAX7219_CS_PIN, MAX7219_NUM_CHIPS);
+
+// Wifi
+#include "mySettings.h"
+
+// Let'sEncrypt root cert
+const char IRG_Root_X1 [] PROGMEM = R"CERT(
+-----BEGIN CERTIFICATE-----
+MIIFYDCCBEigAwIBAgIQQAF3ITfU6UK47naqPGQKtzANBgkqhkiG9w0BAQsFADA/
+MSQwIgYDVQQKExtEaWdpdGFsIFNpZ25hdHVyZSBUcnVzdCBDby4xFzAVBgNVBAMT
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+AQUAA4ICDwAwggIKAoICAQCt6CRz9BQ385ueK1coHIe+3LffOJCMbjzmV6B493XC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+-----END CERTIFICATE-----
+)CERT";
+
+X509List cert(IRG_Root_X1);
+
+int counter = 0;
+
+#include <time.h>
+
+void setup() {
+  Serial.begin(115200); delay(10);
+  Serial.println();
+
+  my_display.String_To_Buffer("   H1   ", MAX7219_BRIGHTNESS);
+
+  // ssid & pass in settings.ino - DO NOT CHECK IN!
+  WiFi.begin(ssid, pass);
+  Serial.print("Connecting to "); Serial.print(ssid); Serial.println(" ...");
+
+  while (WiFi.status() != WL_CONNECTED) {
+    Serial.print(".");
+    delay(1000);
+  }
+
+  Serial.print("Connected, IP: "); Serial.println(WiFi.localIP());
+
+  my_display.String_To_Buffer(WiFi.localIP().toString(), MAX7219_BRIGHTNESS);
+  delay(3000);
+
+  configTime(3*3600, 0, "pool.ntp.org", "time.nist.gov");
+  Serial.print("Waiting for NTP time sync: ");
+
+  time_t now = time(nullptr);
+
+  while (now < 8*3600*2) {
+    delay(500);
+    Serial.print(".");
+    now = time(nullptr);
+  }
+  Serial.println();
+
+  struct tm timeinfo;
+  gmtime_r(&now, &timeinfo);
+  Serial.print("Current time: ");
+  Serial.print(asctime(&timeinfo));
+
+  WiFiClientSecure client;
+
+  // Wait for WiFi connection
+  if ((WiFi.status() == WL_CONNECTED)) {
+
+    client.setTrustAnchors(&cert);
+
+    HTTPClient https;
+
+    Serial.print("[HTTPS] Begin\n");
+    // API URL in settings.ino - DO NOT CHECK IN!
+    if (https.begin(client, apiurl)) {  // HTTPS
+
+      Serial.print("[HTTPS] GET ... ");
+      // Start connection and send HTTP header
+      int httpCode = https.GET();
+
+      // httpCode will be negative on error
+      if (httpCode > 0) {
+        // HTTP header has been send and Server response header has been handled
+        Serial.printf("code: %d\n", httpCode);
+
+        // File found at server
+        if (httpCode == HTTP_CODE_OK || httpCode == HTTP_CODE_MOVED_PERMANENTLY) {
+          counter = https.getString().toInt();
+          Serial.printf("[HTTPS] GET value: %i\n", counter);
+        }
+      } else {
+        Serial.printf("failed, error: %s\n", https.errorToString(httpCode).c_str());
+        my_display.String_To_Buffer("6Et FA1L", MAX7219_BRIGHTNESS);
+      }
+
+      https.end();
+    } else {
+      Serial.printf("[HTTPS] Unable to connect\n");
+    }
+  }
+
+  struct tm t;
+  time_t t_of_day;
+  t.tm_year = timeinfo.tm_year;
+  t.tm_mon = 0;
+  t.tm_mday = 1;
+  t.tm_hour = 0;
+  t.tm_min = 0;
+  t.tm_sec = 0;
+  t.tm_isdst = timeinfo.tm_isdst; // We already have the current time, get DST from that.
+  t_of_day = mktime(&t) + 3*3600; // Add some hours to get to GMT. See also timegm() and timezone foo.
+  Serial.println(t_of_day);
+
+
+  //Serial.println(timest_jan1);
+}
+
+void loop() {
+  // The decimal point does not count against the length of the character string
+  my_display.String_To_Buffer(String(counter++), MAX7219_BRIGHTNESS);
+  delay(1000);
+}

mySettings.example.h

@@ -0,0 +1,11 @@
+#ifndef MYSETTINGS_H
+#define MYSETTINGS_H
+
+// Wifi stuff
+const char* ssid = "YOUR_WIFI_SSID_HERE";
+const char* pass = "YOUR_WIFI_PASSWORD_HERE";
+
+// API URL
+const char* apiurl = "YOUR_API_URL_HERE";
+
+#endif