Differences

This shows you the differences between two versions of the page.

--- spiffchorder:sample_layout [2008/05/21 00:27]
priestdo
+++ spiffchorder:sample_layout [2008/05/21 14:37]
priestdo
@@ Line 1: / Line 1: @@
 ====== Component Layout ======
-With around two dozen total components its hard to go wrong.  The chorder can be built on perfboard, stripboard, wirewrap or your can etch a pcb board.  If you create a layout, please send it to us, your layout may be just what someone else needs to help them build their board!  Please be sure to clearly state how you want to be listed when we post it.  From Name and email address (obfuscated by the wiki) to total anonymity, we will do our best to accommodate your request. Component numbers should match the ones used on the [[hardware]] page.
+With around two dozen total components its hard to go wrong.((Unless it's 3am and the morning of a conference where you realy want to have a new chorder to show folks, in **that** case experience tells me that it's quite //easy// to mess it up completely.))  The chorder can be built on perfboard, stripboard, wirewrap or your can etch a pcb board.  If you create a layout, please send it to us, your layout may be just what someone else needs to help them build their board!  Please be sure to clearly state how you want to be listed when we post it.  From Name and email address (obfuscated by the wiki) to total anonymity, we will do our best to accommodate your request. Component numbers should match the ones used on the [[hardware]] page.
 ===== perfboard =====
+<columns>
+{{spiffchorder:perfboard-layout-7key-01.jpg?300|click or select to enlarge}}
+NEWCOL
+This layout is for a seven key chorder with no LEDs or ISP.  It incudes pull-up resistors in a bussed resistor network.
-Here is a layout for a Seven key chorder with no LEDs or ISP. This is what Greg uses.
+The layout is for perfboard and wire but could be adapted to other methods.
-The layout is for perfboard and wire but could be adapted to other methods.
+For the largest version of the graphic, select it to enlarge, then select it again.
-{{spiffchorder:perfboard-layout-7key-01.jpg?300|click or select to enlarge}}\\
-For the largest version of the above graphic, select it to enlarge, then select it again.\\
 Component names and numbers match those used on the [[hardware]] page.
+</columns>
@@ Line 17: / Line 23: @@
 ===== wirewrap and solder, no board =====
-The layout below uses two 28 pin DIP wirewrap sockets and no breadboard.  The IC uses one of the sockets.  The components are all soldered into the other socket.  Then the sockets are connected using wirewrap.  In practice all ground lines are brought togther and solderd to the ground line of the USB cable and all VCC lines are brought together and soldered to the VCC line of the USB cable. In like fashion, the lines for the keyswitches are brought out to and soldered to one side of each of the switches and a ground line is run to the other.  While a graphic is provided for referance, the wireing chart below should be used when doing the wraping.  Check off each connection on the chart as you go.
+<columns>
+{{spiffchorder:wirewrap-layout-2008-05-20.jpg?200|click or select to enlarge}}
+NEWCOL
+This layout if for a seven key chorder, no LEDs, ISP or pull-up resistors.
- {{spiffchorder:wirewrap-layout-2008-05-20.jpg?200|click or select to enlarge}}\\
+It uses two 28 pin DIP wirewrap sockets and no breadboard.  The IC uses one of the sockets.  The components are all soldered into the other socket.  Then the sockets are connected using wirewrap.
-For the largest version of the above graphic, select it to enlarge, then select it again.\\
-Component names and numbers match those used on the [[hardware]] page.
+In practice all ground lines are brought togther and solderd to the ground line of the USB cable and all VCC lines are brought together and soldered to the VCC line of the USB cable.
+In like fashion, the lines for the keyswitches are brought out to, and soldered to one side of each of the switches and a ground line is run to the other.
+While a graphic is provided for referance, the wireing chart below should be used when doing the wraping.  Check off each connection on the chart as you go.
+For the largest version of the graphic, select it to enlarge, then select it again.
+Component names and numbers match those used on the [[hardware]] page.
+</columns>
-First, insert and then solder the following components into a 28pin DIP as indicated.
+First, insert and then solder the following components into a 28pin DIP between the pins indicated in Chart One.
-^  28 pin dip for use as  |||
+^Chart One||||
-^  component socket    |||
+^         ||^notes|
-^pin^component^pin|
 |1|  X1  |28|
-|2|  |27|
+|2|  |27|2nd row left blank|
 |3|  C1  |26|
 |4|  C2  |25|
-|5|  |24|
+|5|  |24|5th row left blank|
 |6|  C5  |23|
 |7|  R4  |22|
-|8|  D2  |21|
+|8|  D2  |21|orientation is significant|
 |9|  R3  |20|
-|10|  D1  |19|
+|10|  D1  |19|orientation is significant|
 |11|  R2  |18|
 |12|  R1  |17|
 |13|  C3  |16|
-|14|  C4  |15|
+|14|  C4  |15|orientation is significant|
 ** Warning ** I have not yet wired up the wirewrap board, once I have (and as such confirmed that the wire chart below is correct) I will remove this warning -Greg
-Next use a wirewrap tool to connect the following pins.  **Remember to take into account that you are turning the socket upside down when you wrap**. Check your pin numbers carefully. I will post photos with lables once I make this version of the chorder.
+Next use a wirewrap tool to connect the pairs of pins indicated in Chart Two.  **Remember to take into account that you are turning the socket upside down when you wrap**. Check your pin numbers carefully. Check off the boxes in the first column when you wrap them, check off the third column when you confirm the wireing with a continuity meter. I will post photos with lables once I make this version of the chorder.
+<columns>
-^key||
+^Chart Two |||
-| CS-# | component socket pin number, 28 pin dip holding the circut components  |
-| IC-# | IC socket socket pin number, 28 pin dip holding the AVR atmega168 ic  |
-| SW-# | Switch number, each switch has 2 pins.  One pin is wired to the IC, the other to Ground |
-| USB-#  |  The four lines of the usb cable (see [[hardware]])  |
-| VCC  |  power from line one of the usb cable  |
-| GND  |  Ground line from line 4 of the usb cable |
 ^wired^ components  ^  tested  |
 |[ ]|  CS-1  CS-4  |[ ]|
@@ Line 98: / Line 106: @@
 |[ ]|  USB-1 VCC   |[ ]|
 |[ ]|  USB-4 GND   |[ ]|
+NEWCOL
+^key for Chart Two||
+| CS-# | component socket pin number, 28 pin dip holding the circut components  |
+| IC-# | IC socket socket pin number, 28 pin dip holding the AVR atmega168 ic  |
+| SW-# | Switch number, each switch has 2 pins.  One pin is wired to the IC, the other to Ground |
+| USB-#  | The four lines of the usb cable (see [[hardware]])  |
+| VCC  | power from line one of the usb cable  |
+| GND  | Ground line from line 4 of the usb cable |
+</columns>