WiFi control working

.gitignore

@@ -1,2 +1,3 @@
 .pio
-src/wifi.h
+src/creds.h
+.vscode/

platformio.ini

@@ -16,4 +16,6 @@ name = WiFiTrainReceiver
 [env:esp32dev]
 platform = espressif32
 framework = arduino
-board = esp32dev
+board = esp32dev
+lib_deps = 
+	ArduinoJson

src/creds.h.txt

@@ -0,0 +1,16 @@
+#ifndef CREDS_H
+#define CREDS_H
+
+/*
+
+INSTRUCTIONS:
+
+Change the text inside of the " characters to contain your SSID and Password for your WiFi
+After that, rename this file from ending in .txt to .h and compile.
+
+*/
+
+#define WIFI_SSID "YOUR SSID HERE"
+#define WIFI_PASS "YOUR PASSWORD HERE!"
+
+#endif

src/main.cpp

@@ -1,23 +1,33 @@
 #include "Arduino.h"
-#include <WiFi.h>
+#include "WiFi.h"
+#include <HTTPClient.h>
+#include "creds.h"
 #include <string>
+#include <ArduinoJson.h>
 #include "Syren50.h"
 using namespace std;
 
 Syren50 motor;
 
+void initWiFi() {
+  WiFi.mode(WIFI_STA);
+  WiFi.begin(WIFI_SSID, WIFI_PASS);
+  Serial.print("Connecting to WiFi ..");
+  while (WiFi.status() != WL_CONNECTED) {
+    Serial.print('.');
+    delay(1000);
+  }
+  Serial.println(WiFi.localIP());
+}
+
 void setup() {
     Serial.begin(115200);
-    // delay required for motor controller boot-up
-    delay(1000);
+    initWiFi();
     motor.init();
 }
 
 float throttle = 0.0f;
 int8_t direction = 0;
-bool horn = false;
-bool bell = false;
-bool lights = false;
 
 int8_t last_direction = 0;
 float last_throttle = 0.0f;
@@ -30,25 +40,41 @@ void inertia(float throttle, int8_t direction, float &inertial_throttle, int8_t
 float motor_throttle;
 int8_t motor_direction;
 
+void parse_json(String json_string, float &throttle, int8_t &direction) {
+    StaticJsonDocument<200> doc;
+    DeserializationError error = deserializeJson(doc, json_string);
+    // Test if parsing succeeds.
+    if (error) {
+        Serial.print(F("deserializeJson() failed: "));
+        Serial.println(error.f_str());
+        return;
+    }
+    // Parse inputs and return them
+    throttle = doc["throttle"];
+    direction = (int8_t) doc["direction"];
+}
+
 void get_control_inputs(float &throttle, int8_t &direction) {
-    if (Serial.available() > 0) {
-        if (Serial.peek() == 'c') {
-            Serial.read();
-            Serial.println("Init motor");
-            motor.init();
+    if(WiFi.status()== WL_CONNECTED){
+        HTTPClient http;
+        String serverName = "http://10.0.2.148:2093/control";
+        http.begin(serverName.c_str());
+        int httpResponseCode = http.GET();
+
+        if (httpResponseCode == 200) {
+            String payload = http.getString();
+            parse_json(payload, throttle, direction);
         } else {
-            int recvd = Serial.parseInt();
-            throttle = (float) recvd / 100.0;
-            Serial.println(throttle);
-            direction = 1;
+            Serial.println("Error communicating with webserver. Got HTTP status code:");
+            Serial.println(httpResponseCode);
         }
+        http.end();
     }
 }
 
 void loop() {
     get_control_inputs(throttle, direction);
     inertia(throttle, direction, motor_throttle, motor_direction);
-    Serial.println(motor_throttle);
     motor.move(motor_direction, (uint8_t) (motor_throttle * 127.0));
     delay(1);
 }