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--- board_reconditioning [2017/04/23 07:30] – [Required hardware] poilou
+++ board_reconditioning [2024/01/01 16:31] (current) – external edit 127.0.0.1
@@ Line 1: / Line 1: @@
 ====== Required hardware ======
-  * Mandatory :
+  * **Mandatory** :
     * An old electronic dart board
     * An Arduino UNO
     * Small cables (like the ones in a old Ethernet cable)
-  * Optional but could be useful :
+  * **Optional** but could be useful :
     * Auto crimp
     * Connectors
     * Proto board
+    * Breadboard
+{{:arduino_uno.png?nolink&130 |}}
+{{:auto-crimp.png?nolink&165 |}}
+{{:wires-prepared01.png?nolink&200 |}}
 ====== Required tools ======
   * Soldering iron
   * Unsoldering braid
-  * Small cables (from an old Ethernet cable for instance)
 ====== Concept ======
+The board is made up of **62 segments** : 20 singles, 20 doubles, 20 triples and 2 bull's eye.\\
+When you touch a segment, it quickly **shuts a switch**. So **there are 62 switches behind your dart board. One for each segment of your board**.\\
+\\
+Behind your board, there are **two plastic leaves**, one over the other. They hold all the switches. When your dart hits a segment, **the two leaves touch together**, and the circuit is shuts. **The signal is sent**.\\
+\\
+Electronically speaking, **all the switches can be represented inside a matrix**.\\
+Each plastic leaf output as a **plastic ribbon**, holding the leads of an axis of **the matrix**.\\
+In a **8x8 example**, one plastic ribbon hold the X axis (1 to 8) and the other the Y axis (A to H) :\\
+{{ :matrix_88_concept.png?nolink&300 |}}
+Let say, as an example, you hit a triple 20 (T20 here on the picture). A triple 20 switch has the crossing between the "D" and the "3". **For the Arduino and the computer, every segment has its own crossing**.
+So we will **load the representation of the matrix** (a matrix table) in the Arduino, so each time you will hit a segment on your board, it will **send a specific signal** to the computer depending on the row and the column hit on the matrix.
+It is **recommended** (no longer mandatory) to connect **board's buttons** : so "next player", "backup turn" and "give up" can be done directly from board during games. So we need add a column to the matrix.\\
+On the Arduino UNO micro controller, there are several connectors : A0, A1 ….1,2,3..etc. With the example of a 8x8 ribbons + 1 column for the buttons (= 8x9), you will get something like the **following example** :
 {{ :connexion_overview_v3.png?nolink&800 |}}
-TODO
+**A** : first slick (here with 8 pins, it can be different on your board)\\
+**B** : second slick (here with 8 pins, it can be different on your board)\\
+\\
+**X** : Arduino inputs\\
+**Y** : other Arduino inputs\\
+**c,d,e** : optional buttons. Those buttons are used for "Press player", "Abort game", and "Backup turn"
 ====== Example pictures ======
-TODO
+Opening the back of the dart board\\
+{{:01-board_back_opened.png?nolink&500|}}
+Unsolder the two slicks from the motherboard\\
+{{:02-unsolider01.png?nolink&500|}}
+Unsolder the two slicks from the motherboard (in action)\\
+{{:03-unsolider02.png?nolink&500|}}
+Once the two slicks are free from the main board \\
+Optional : if you wish to use the main board for buttons, we strongly recommend you remove all the components from main board.\\
+To make space for the Arduino, Cut the main board without cutting the places near the circuit of buttons.\\
+{{:04-unsolider03.png?nolink&500|}}
+Prepare your Arduino and your cables\\
+{{:05-arduino-prepared01.png?nolink&500|}}
+You final assembly could look like the following \\
+{{:07-mainboard-final.png?nolink&500|}}
+Re-attach the back of your board. The hardest part is done !\\
+Step 2 : uploading [[arduino_sketch_file_for_pydarts|Arduino sketch file for pyDarts]].