doorbell: fix button pin

fix button pin to match other samples also: - replace placeholder schematic w/ the one from documentation - update README w/ components Bug: 33481649 Bug: 33471070 Change-Id: I85ae557cad40a89dd7669de9a7a69c5fb5502687
Ak-sky · Dec 10, 2016 · 057f5d9 · 057f5d9
1 parent 7f90da4
commit 057f5d9
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Showing 4 changed files with 94 additions and 6 deletions.
diff --git a/README.md b/README.md
@@ -16,8 +16,18 @@ Pre-requisites
 - "Google Repository" from the Android SDK Manager
 - Google Cloud project with Cloud Vision API enabled
 - Firebase database
+- The following individual components:
+    - 1 push button
+    - 1 resistor
+    - jumper wires
+    - 1 breadboard
 
 
+Schematics
+----------
+
+![Schematics](schematics.png)
+
 Setup and Build
 ===============
 
@@ -58,11 +68,6 @@ To run the `companionApp` module on your Android phone:
 2. Verify that you see a new annotated picture everytime you push the button
 
 
-Schematics
-----------
-
-![Sample schematics](sample_schematics.png)
-
 License
 -------
 

diff --git a/app/src/main/java/com/example/androidthings/doorbell/DoorbellActivity.java b/app/src/main/java/com/example/androidthings/doorbell/DoorbellActivity.java
@@ -74,7 +74,7 @@ public class DoorbellActivity extends Activity {
     /**
      * The GPIO pin to activate to listen for button presses.
      */
-    private final String BUTTON_GPIO_PIN = "BCM22";
+    private final String BUTTON_GPIO_PIN = "BCM21";
 
 
     @Override

diff --git a/sample_schematics.png b/sample_schematics.png
diff --git a/schematics.png b/schematics.png