Orgqanized light sensors together

MMA8451Accelerometer/MMA8451Accelerometer.ino → Accelerometers/MMA8451Accelerometer/MMA8451Accelerometer.ino

@@ -22,7 +22,7 @@ void setup(void) {
   Serial.begin(9600);
 // initialize communications with the accelerometer:
   if (! mma.begin()) {
-    Serial.println("Couldnt start. Check wiring the to the sensor.");
+    Serial.println("Couldn't start. Check wiring the to the sensor.");
     while (true);   // stop here and do nothing else
   }
   // set accelerometer range to 2G max:
@@ -39,5 +39,4 @@ void loop() {
   Serial.print(mma.y);
   Serial.print("\tZ: ");
   Serial.println(mma.z);
-
 }

Accelerometers/readme.md

@@ -8,4 +8,8 @@ Analog Devices makes a family of accelerometers, the [ADXL3xx accelerometers](ht
 
 ## STMicroelectronics LIS3DH
 
-STMicroelectronics' [LIS3DH accelerometer](https://www.st.com/en/mems-and-sensors/lis3dh.html) is an inexpensive accelerometer with a variable range of sensitivity. It connects to a microcontroller using I2C. It's a great one to use when budget is a consideration. It also has some nice features like tap detection on all three axes.
+STMicroelectronics' [LIS3DH accelerometer](https://www.st.com/en/mems-and-sensors/lis3dh.html) is an inexpensive accelerometer with a variable range of sensitivity. It connects to a microcontroller using I2C. It's a great one to use when budget is a consideration. It also has some nice features like tap detection on all three axes.
+
+## Freescale MMA8451
+
+Freescale's MMA8451 is an inexpensive accelerometer that communicates over I2C. Adafruit has an [MMA8451 breakout board](https://www.adafruit.com/product/2019)

AdafruitJoystick/AdafruitJoystick.ino → Joystick/Joystick.ino

@@ -1,20 +1,21 @@
 /*
- Adafruit joystick example
+ Joystick example
  
- Reads an Adafruit joystick and maps the X and Y outputs to a range from
- -1 to 1.  Also inverts the button reading so that pressed = 1 and unpressed = 0
+ Reads an Adafruit or Sparkfun joystick and maps the X and Y outputs to a range 
+ from -1 to 1.  Also inverts the button reading so that pressed = 1 and unpressed = 0
  
- circuit: Adafruit joystick attached to A0 through A4, with Vcc on A0
- (https://www.adafruit.com/products/512)
+ circuit:  joystick attached to A0 through A4, with sensor pins on A1, A2, and A3
  
  created 10 Sept 2012
+ modified 18 Jan 2019
  by Tom Igoe
  
  */
 void setup() {
   // initialize serial communication at 9600 bits per second:
   Serial.begin(9600);
-  // configure analog pins for Adafruit joystick:
+  // configure analog pins for joystick
+  // Check your joystick breakout board for correct pins:
   pinMode(A0, OUTPUT);
   pinMode(A4, OUTPUT);
   pinMode(A3, INPUT_PULLUP);    // joystick pushbutton