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spiffchorder:sample_layout [2008/05/21 00:27]
priestdo
spiffchorder:sample_layout [2008/05/21 14:51] (current)
priestdo
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 ====== Component Layout ====== ====== 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 really want to have a new chorder to show folks, in which case experience tells me that it's quite //easy// if not downright //likly// you'll 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 ===== ===== 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. Component names and numbers match those used on the [[hardware]] page.
 +</​columns>​
 +
 +
 +
  
  
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 ===== wirewrap and solder, no board ===== ===== 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 ground line is run to the other. ​ While a graphic is provided for referancethe 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 chorderno 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 either no perfboard ​or a piece of perfboard that is about 4x36 holes big (a little longer than the two sockets and only as wide as a socket).  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 together and soldered 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.
  
-Firstinsert ​and then solder ​the following components into 28pin DIP as indicated.+In like fashionthe lines for the keyswitches are brought out and soldered to one side of each of the key switches and ground line is run to the other side of the key switches. 
 + 
 +While a graphic is provided for reference, the wiring chart below should be used when doing the wrapping.  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>​
  
-^  28 pin dip for use as  ||| +First, insert and then solder the following components into a 28pin DIP between the pins indicated in Chart One.
-^  component socket ​   ||| +
-^pin^component^pin| +
-|1|  X1  |28| +
-|2|  |27|  +
-|3|  C1  |26| +
-|4|  C2  |25| +
-|5|  |24| +
-|6|  C5  |23| +
-|7|  R4  |22| +
-|8|  D2  |21| +
-|9|  R3  |20| +
-|10|  D1  |19| +
-|11|  R2  |18| +
-|12|  R1  |17| +
-|13|  C3  |16| +
-|14|  C4  |15|+
  
-** 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+^Chart One|||| 
 +^         ||^notes| 
 +|1|  X1  |28| 
 +|2|  |27|2nd row left blank| 
 +|3|  C1  |26| 
 +|4|  C2  |25| 
 +|5|  |24|5th row left blank| 
 +|6|  C5  |23| 
 +|7|  R4  |22| 
 +|8|  D2  |21|orientation ​is significant| 
 +|9|  R3  |20| 
 +|10|  D1  |19|orientation is significant| 
 +|11|  R2  |18| 
 +|12|  R1  |17| 
 +|13|  C3  |16| 
 +|14|  C4  |15|orientation is significant|
  
-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. ​will post photos with lables ​once I make this version of the chorder. ​+** Warning ​** //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
  
-^key|| +Next use a wirewrap tool to connect the pairs of pins indicated in Chart Two.  Consider your final placement of the sockets and make your lines long enough to accommodate.  With this layout you could place a small amount of non conductive material between the sockets and place them bottom side to bottom side once you have tested the circuit and trimmed the long pins on the sockets. **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 wiring with a continuity meter. You may find it helpful to use a little double sided tape to hold the sockets down to your work surface while wirewrapping. I will post photos with labels once I make this version of the chorder.  
-| CS-# | component socket pin number, 28 pin dip holding the circut components  ​+<​columns>​ 
-| IC-# | IC socket socket pin number, 28 pin dip holding the AVR atmega168 ​ic  ​+^Chart Two ||| 
-| SW-# | Switch number, each switch has 2 pins.  One pin is wired to the IC, the other to Ground | +^wired^ components  ^  tested  | 
-| USB-#  |  The four lines of the usb cable (see [[hardware]]) ​ | +|[ ]|  CS-1  CS-4  |[ ]| 
-VCC  ​ power from line one of the usb cable  ​+|[ ]|  CS-5  CS-23  |[ ]| 
-GND  ​ Ground line from line 4 of the usb cable |+|[ ]|  CS-6  VCC   |[ ]| 
 +|[ ]|  CS-8  GND   |[ ]| 
 +|[ ]|  CS-10 GND   |[ ]| 
 +|[ ]|  CS-11 GND   |[ ]| 
 +|[ ]|  CS-12 VCC   |[ ]| 
 +|[ ]|  CS-13 CS-14  |[ ]| 
 +|[ ]|  CS-14 VCC   |[ ]| 
 +|[ ]|  CS-15 GND   |[ ]| 
 +|[ ]|  CS-16 CS-15  |[ ]| 
 +|[ ]|  CS-18 CS-17  |[ ]| 
 +|[ ]|  CS-18 USB-2  |[ ]| 
 +|[ ]|  CS-19 CS-18  |[ ]| 
 +|[ ]|  CS-20 CS-19  |[ ]| 
 +|[ ]|  CS-21 USB-3  |[ ]| 
 +|[ ]|  CS-22 CS-21  |[ ]| 
 +|[ ]|  CS-23 GND   |[ ]| 
 +|[ ]|  CS-25 GND   |[ ]| 
 +|[ ]|  CS-26 GND   |[ ]| 
 +|[ ]|  CS-28 CS-3  |[ ]| 
 +|  |  |  | 
 +|[ ]|  IC-2  ​ CS-9  |[ ]| 
 +|[ ]|  IC-4  ​ CS-7  |[ ]| 
 +|[ ]|  IC-7  ​ CS-6  |[ ]| 
 +|[ ]|  IC-8  ​ CS-5  |[ ]| 
 +|[ ]|  IC-9  ​ CS-1  |[ ]| 
 +|[ ]|  IC-10  CS-28  |[ ]| 
 +|[ ]|  IC-12  SW-7  |[ ]| 
 +|[ ]|  IC-14  SW-1  |[ ]| 
 +|[ ]|  IC-15  SW-2  |[ ]| 
 +|[ ]|  IC-16  SW-3  |[ ]| 
 +|[ ]|  IC-17  SW-4  |[ ]| 
 +|[ ]|  IC-18  SW-5  |[ ]| 
 +|[ ]|  IC-19  SW-6  |[ ]| 
 +|   |    |  | 
 +|[ ]|  SW-1-7(GND) GND   |[ ]| 
 +|   |              |    | 
 +|[ ]|  USB-1 VCC   |[ ]| 
 +|[ ]|  USB-4 GND   |[ ]| 
 +NEWCOL 
 +^key for Chart Two|| 
 +| CS-# | component socket pin number, 28 pin dip holding the circuit 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>​
  
  
-^wired^ components ​ ^  tested ​ | 
-|[ ]|  CS-1  CS-4  |[ ]| 
-|[ ]|  CS-5  CS-23  |[ ]| 
-|[ ]|  CS-6  VCC   |[ ]| 
-|[ ]|  CS-8  GND   |[ ]| 
-|[ ]|  CS-10 GND   |[ ]| 
-|[ ]|  CS-11 GND   |[ ]| 
-|[ ]|  CS-12 VCC   |[ ]| 
-|[ ]|  CS-13 CS-14  |[ ]| 
-|[ ]|  CS-14 VCC   |[ ]| 
-|[ ]|  CS-15 GND   |[ ]| 
-|[ ]|  CS-16 CS-15  |[ ]| 
-|[ ]|  CS-18 CS-17  |[ ]| 
-|[ ]|  CS-18 USB-2  |[ ]| 
-|[ ]|  CS-19 CS-18  |[ ]| 
-|[ ]|  CS-20 CS-19  |[ ]| 
-|[ ]|  CS-21 USB-3  |[ ]| 
-|[ ]|  CS-22 CS-21  |[ ]| 
-|[ ]|  CS-23 GND   |[ ]| 
-|[ ]|  CS-25 GND   |[ ]| 
-|[ ]|  CS-26 GND   |[ ]| 
-|[ ]|  CS-28 CS-3  |[ ]| 
-|  |  |  | 
-|[ ]|  IC-2   ​CS-9 ​ |[ ]| 
-|[ ]|  IC-4   ​CS-7 ​ |[ ]| 
-|[ ]|  IC-7   ​CS-6 ​ |[ ]| 
-|[ ]|  IC-8   ​CS-5 ​ |[ ]| 
-|[ ]|  IC-9   ​CS-1 ​ |[ ]| 
-|[ ]|  IC-10  CS-28  |[ ]| 
-|[ ]|  IC-12  SW-7  |[ ]| 
-|[ ]|  IC-14  SW-1  |[ ]| 
-|[ ]|  IC-15  SW-2  |[ ]| 
-|[ ]|  IC-16  SW-3  |[ ]| 
-|[ ]|  IC-17  SW-4  |[ ]| 
-|[ ]|  IC-18  SW-5  |[ ]| 
-|[ ]|  IC-19  SW-6  |[ ]| 
-|   ​| ​   |  | 
-|[ ]|  SW-1-7(GND) GND   |[ ]| 
-|   ​| ​             |    | 
-|[ ]|  USB-1 VCC   |[ ]| 
-|[ ]|  USB-4 GND   |[ ]| 
  
spiffchorder/sample_layout.1211344052.txt.gz · Last modified: 2008/05/21 00:27 by priestdo
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