Updated readme

README.md

@@ -8,6 +8,9 @@ Every driver is published as separeate lib to maven repository.
 
 Implemented drivers
 -----------------------
+
+All samples work on Raspberry Pi 3 only.<br/>
+
 Driver | Type | dependecy definition| usage  
 :---:|:---:| --- | ---
 [ULN2003](uln2003) | stepper motor| `compile 'com.polidea.androidthings.driver:uln2003:0.0.1-SNAPSHOT'` | [tutorial](https://github.com/Polidea/Polithings/tree/master/uln2003) [sample](https://github.com/Polidea/Polithings/blob/master/app/src/main/kotlin/com/start/bootstrap/example/StepperMotorActivity.kt)

app/src/main/kotlin/com/start/bootstrap/NumpadActivity.kt

@@ -9,13 +9,13 @@ class NumpadActivity : AppCompatActivity() {
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
-        Numpad(c1GpioId = "BCM13",
-                c2GpioId = "BCM5",
-                c3GpioId = "BCM26",
-                r1GpioId = "BCM6",
+        Numpad(c1GpioId = "BCM27",
+                c2GpioId = "BCM17",
+                c3GpioId = "BCM22",
+                r1GpioId = "BCM12",
                 r2GpioId = "BCM21",
                 r3GpioId = "BCM20",
-                r4GpioId = "BCM19"
+                r4GpioId = "BCM16"
                 )
                 .apply {
             keyListener = { keyEvent ->

numpad/README.md

@@ -18,7 +18,8 @@ dependencies {
 }
 ```
 
-### Connection
+### Hardware Setup
+<img src="https://gitlab2.polidea.com/pawel.byszewski/android_things_drivers/raw/ba0ce3a6ff706d31a2d61f640e5cfb322328fee5/numpad/readme/numpad_wiring.jpg" width="342" height="389" /><br/>
 Every `GPIO` connected to row on a numpad MUST be [pulled-up](https://developer.android.com/things/hardware/hardware-101.html#pull-ups_and_pull-downs) to 3.3V
 
 
@@ -27,6 +28,16 @@ Every `GPIO` connected to row on a numpad MUST be [pulled-up](https://developer.
 ```kotlin
 import com.polidea.androidthings.driver.numpad.NumpadDriver
 
+// select gpio pins on your board for columns(c) and rows(r)
+
+val c1GpioPinName = "BCM27"
+val c2GpioPinName = "BCM17"
+val c3GpioPinName = "BCM22"
+val r1GpioPinName = "BCM12"
+val r2GpioPinName = "BCM21"
+val r3GpioPinName = "BCM20"
+val r4GpioPinName = "BCM16"
+
 // Access the Button and listen for events:
 
 val numpad = Numpad(c1GpioId = c1GpioPinName,

uln2003/README.md

@@ -2,7 +2,9 @@ ULN2003 driver for Android Things
 ================================
 
 This driver supports ULN2003 driver with 28BYJ-48 Stepper Motor.<br/>
-[This](http://42bots.com/tutorials/28byj-48-stepper-motor-with-uln2003-driver-and-arduino-uno/) tutorial helped us developing our driver.
+[This](http://42bots.com/tutorials/28byj-48-stepper-motor-with-uln2003-driver-and-arduino-uno/) tutorial helped us developing our driver.<br/>
+<br/>
+<img src="http://gitlab2.polidea.com/pawel.byszewski/android_things_drivers/raw/941597d1c24d220d158788d8ca5199781cd9d2f1/uln2003/readme/ULN2003.jpg" width="298" height="293" />
 
 How to use the driver
 ---------------------
@@ -18,14 +20,21 @@ dependencies {
 }
 ```
 
-### Connection
-Connect all four "in" pins on uln2003 driver into GPIOs available on your board
+### Hardware Setup
+Connect all four "in" pins on uln2003 driver into GPIOs available on your board.
 
 ### Sample usage of high level Stepper Motor Driver
 
 ```kotlin
 com.polidea.androidthings.driver.uln2003.motor.ULN2003StepperMotor
 
+// select gpio pins on your board for uln2003 input pins
+
+val in1Pin = "BCM4"
+val in2Pin = "BCM17"
+val in3Pin = "BCM27"
+val in4Pin = "BCM22"
+
 val stepper = ULN2003StepperMotor(in1GpioId = in1Pin,
                                   in2GpioId = in2Pin,
                                   in3GpioId = in3Pin,
@@ -59,6 +68,13 @@ Remember, if you close ULN2003StepperMotor during the execution process you'll b
 ```kotlin
 package com.polidea.androidthings.driver.uln2003.driver.ULN2003
 
+// select gpio pins on your board for uln2003 input pins
+
+val in1Pin = "BCM4"
+val in2Pin = "BCM17"
+val in3Pin = "BCM27"
+val in4Pin = "BCM22"
+
 val uln2003 = ULN2003(in1GpioId = in1Pin,
                       in2GpioId = in2Pin,
                       in3GpioId = in3Pin,