report the current weather

platformio.ini

@@ -16,5 +16,8 @@ upload_speed = 921600
 build_flags = 
 	!bin/version.sh
 extra_scripts = pre:bin/firmware_rename.py
-lib_deps = https://github.com/kenbarbour/HttpServer
+lib_deps = 
+	https://github.com/kenbarbour/HttpServer
+	Adafruit Unified Sensor@^1.1.1
+	Adafruit BME280 Library@^2.0.1
 

src/bme280.cpp

@@ -0,0 +1,11 @@
+#include "bme280.h"
+#include <Arduino.h>
+
+Adafruit_BME280 BME;
+
+void bme280_init()
+{
+  if (!BME.begin(0x76)) {
+    Serial.println("Could not find a valid BME280 sensor");
+  }
+}

src/bme280.h

@@ -0,0 +1,13 @@
+#ifndef _UWEATHER_BME280_H_
+#define _UWEATHER_BME280_H_
+
+#include <Wire.h>
+#include <SPI.h>
+#include <Adafruit_Sensor.h>
+#include <Adafruit_BME280.h>
+
+extern Adafruit_BME280 BME;
+
+void bme280_init();
+
+#endif /** _UWEATHER_BME280_H_ include guard */

src/main.cpp

@@ -4,6 +4,7 @@
 #include "version.h"
 #include "web.h"
 #include "update.h"
+#include "bme280.h"
 
 #ifndef SERIAL_BAUD
 #define SERIAL_BAUD 74880
@@ -47,6 +48,7 @@ void setup()
         Serial.println(WiFi.localIP());
         connected = true;
     }
+    const char* softApSSID = unique_softap_ssid();
     WiFi.softAP(softApSSID);
     Serial.printf_P( PSTR("Created Soft AP for setup: %s\r\n"), softApSSID);
     //TODO: turn off SoftAP later if connected
@@ -61,6 +63,9 @@ void setup()
         //uweather_web_shutdown();
     }
 
+    //
+    bme280_init();
+
     uweather_update_init();
 
 }

src/web.cpp

@@ -1,4 +1,5 @@
 #include "web.h"
+#include "bme280.h"
 #include <Arduino.h>
 #include <ESP8266WiFi.h>
 #include <FS.h>
@@ -66,10 +67,25 @@ void handle_setup(HttpRequest& req, HttpResponse& res)
 
 void handle_firmware(HttpRequest& req, HttpResponse& res)
 {
+  if (req.method[0] != 'G') {  // Methods not implemented
+    res.code = 501;
+    return;
+  }
   res.headers.set("Content-Type", "text/html");
   serve_static("/w/firmware.html", res);
 }
 
+void handle_weather_current(HttpRequest& req, HttpResponse& res)
+{
+  char buff[3][10] = {};
+  dtostrf(BME.readTemperature(), 2, 1, buff[0]);
+  dtostrf(BME.readPressure(), 2, 1, buff[1]);
+  dtostrf(BME.readHumidity(), 2, 1, buff[2]);
+  Serial.printf("temp= %s, pres= %s, hum=%s\r\n", buff[0], buff[1], buff[2]);
+  res.headers.set("Content-Type", "application/json");
+  content.printf("{\"time\": null, \"temperature\": %s, \"pressure\": %s, \"humidity\": %s}", buff[0], buff[1], buff[2]);
+}
+
 // Handle WiFi Scan
 void handle_wifi_scan(HttpRequest& req, HttpResponse& res)
 {
@@ -163,6 +179,7 @@ Route routes[] = {
     { GET, "/wifi/scan", handle_wifi_scan},
     { GET | POST | DELETE, "/wifi", handle_wifi_state},
     { GET | POST, "/firmware", handle_firmware},
+    { GET, "/weather/current", handle_weather_current},
     { GET, "/#", handle_asset}
 };