added particle code for network connectivity

jeffcatania · Oct 28, 2018 · 3b1059d · 3b1059d
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diff --git a/car/photon-control/particle-left.html b/car/photon-control/particle-left.html
@@ -0,0 +1,24 @@
+<!--
+    <form action="https://api.particle.io/v1/devices/device-id-here/led?access_token=access-token-here" method="POST">
+-->
+<html>
+  <body>
+  <center>
+  <br>
+  <br>
+  <br>
+  <form action="https://api.particle.io/v1/devices/3d0024000c47353136383631/dir?access_token=1fa9ab2ed7aef7b8f5a7d3b954866fabaca14f6b" method="POST">
+    Tell your device what to do!<br>
+    <br>
+    <input type="radio" name="arg" value="left">Turn left.
+    <br>
+    <input type="radio" name="arg" value="right">Turn right.
+    <br>
+    <input type="radio" name="arg" value="straight">Go straight.
+    <br>
+    <br>
+    <input type="submit" value="Do it!">
+  </form>
+  </center>
+  </body>
+</html>
diff --git a/car/photon-control/photon_dir.c b/car/photon-control/photon_dir.c
@@ -0,0 +1,99 @@
+// -----------------------------------
+// Controlling LEDs over the Internet
+// -----------------------------------
+
+// First, let's create our "shorthand" for the pins
+// Same as in the Blink an LED example:
+// led1 is D0, led2 is D7
+
+int led1 = D0;
+int led2 = D7;
+int LEFT_PIN = D5;
+int RIGHT_PIN = D6;
+
+// Last time, we only needed to declare pins in the setup function.
+// This time, we are also going to register our Particle function
+
+void setup()
+{
+
+   // Here's the pin configuration, same as last time
+   pinMode(led1, OUTPUT);
+   pinMode(led2, OUTPUT);
+   pinMode(LEFT_PIN, OUTPUT);
+   pinMode(RIGHT_PIN, OUTPUT);
+
+   // We are also going to declare a Particle.function so that we can turn the LED on and off from the cloud.
+   // This is saying that when we ask the cloud for the function "led", it will employ the function ledToggle() from this app.
+   Particle.function("led",ledToggle);
+
+   // For good measure, let's also make sure both LEDs are off when we start:
+   digitalWrite(led1, LOW);
+   digitalWrite(led2, LOW);
+
+   Particle.function("dir",setDirection);       // "dir" can receive "left", "right" or "straight" (default)
+
+   digitalWrite(LEFT_PIN, LOW);
+   digitalWrite(RIGHT_PIN, LOW);
+
+}
+
+
+// Last time, we wanted to continously blink the LED on and off
+// Since we're waiting for input through the cloud this time,
+// we don't actually need to put anything in the loop
+
+void loop()
+{
+   // Nothing to do here
+}
+
+// We're going to have a super cool function now that gets called when a matching API request is sent
+// This is the ledToggle function we registered to the "led" Particle.function earlier.
+
+
+int ledToggle(String command) {
+    /* Particle.functions always take a string as an argument and return an integer.
+    Since we can pass a string, it means that we can give the program commands on how the function should be used.
+    In this case, telling the function "on" will turn the LED on and telling it "off" will turn the LED off.
+    Then, the function returns a value to us to let us know what happened.
+    In this case, it will return 1 for the LEDs turning on, 0 for the LEDs turning off,
+    and -1 if we received a totally bogus command that didn't do anything to the LEDs.
+    */
+
+    if (command=="on") {
+        digitalWrite(led1,HIGH);
+        digitalWrite(led2,HIGH);
+        return 1;
+    }
+    else if (command=="off") {
+        digitalWrite(led1,LOW);
+        digitalWrite(led2,LOW);
+        return 0;
+    }
+    else {
+        return -1;
+    }
+}
+
+
+int setDirection(String command) {
+    /* Particle.functions always take a string as an argument and return an integer.
+    Allow three values for the string: "left", "right" or "straight" (default)
+     */
+
+    digitalWrite(LEFT_PIN,LOW);
+    digitalWrite(RIGHT_PIN,LOW);
+
+    if (command=="left") {
+        digitalWrite(LEFT_PIN,HIGH);
+        return 1;
+    }
+    else if (command=="right") {
+        digitalWrite(RIGHT_PIN,HIGH);
+        return 2;
+    }
+    else {
+        return 0;
+    }
+}