Difference between revisions of "Front Panel Assembly Sheet Rev 1"

From Land Boards Wiki
Jump to navigation Jump to search
 
(3 intermediate revisions by the same user not shown)
Line 1: Line 1:
[[File:fp01_front__back_pwb.png]]
+
[[File:fp01_pwb_front_rear.png]]
  
 
== Parts List / Assembly Order ==
 
== Parts List / Assembly Order ==
Line 13: Line 13:
 
|-
 
|-
 
| 4
 
| 4
| 10K, 1/4W (Rear)
+
| 10K, 0805 (Rear)
 
| R33, R36-R38
 
| R33, R36-R38
 
|  
 
|  
Line 21: Line 21:
 
|-
 
|-
 
| 32
 
| 32
| 1K, 1/4W (NOTE 1) (Rear)
+
| 1K, 0805 (NOTE 1) (Rear)
 
| R1-R32
 
| R1-R32
 
|  
 
|  
Line 29: Line 29:
 
|-
 
|-
 
| 3
 
| 3
| 2.2K, 1/4W (NOTE 2) (Rear)
+
| 2.2K, 0805 (NOTE 2) (Rear)
 
| R34-R36
 
| R34-R36
 
|  
 
|  
Line 37: Line 37:
 
|-
 
|-
 
| 32
 
| 32
| SW_Push, 6mm (Note 4) (Front)
+
| SW, Pushbutton, 6mm (Note 4) (Front)
 
| SW0-SW31
 
| SW0-SW31
 
|  
 
|  
Line 59: Line 59:
 
* Note 2 - R34 and R35 are 2.2K I2C terminators. Needed for 3.3V operation and 400 KHz operation. R36 is INT* pullup.
 
* Note 2 - R34 and R35 are 2.2K I2C terminators. Needed for 3.3V operation and 400 KHz operation. R36 is INT* pullup.
 
* Note 3 - LEDs - I like [https://www.ebay.com/itm/381087033256 diffused Orange LEDs]. I don't like clear LEDs.
 
* Note 3 - LEDs - I like [https://www.ebay.com/itm/381087033256 diffused Orange LEDs]. I don't like clear LEDs.
* Note 4 - Pick the height you like. I like [https://www.ebay.com/itm/402850517873 6mm high].
+
* Note 4 - Pick the height you like. I like [https://www.ebay.com/itm/402850517873 6mm high]. You might like taller if you use keycaps.

Latest revision as of 15:53, 20 June 2021

Fp01 pwb front rear.png

Parts List / Assembly Order

Qty Value RefDes Qty Value RefDes
4 10K, 0805 (Rear) R33, R36-R38 32 LED, 5mm (NOTE 3) (Front) DS0-DS31
32 1K, 0805 (NOTE 1) (Rear) R1-R32 1 HEADER, RT ANG, 1x2 (Rear) J1
3 2.2K, 0805 (NOTE 2) (Rear) R34-R36 1 HEADER, RT ANG, 1x5 (Rear) J2
32 SW, Pushbutton, 6mm (Note 4) (Front) SW0-SW31 1 HEADER, RT ANG, 1X4 (Rear) J3
4 MCP23017-E/SS (Front) U1-U4 1 HEADER, RT ANG, 2X2 (Rear) J4

Notes

  • Note 1 - 1K ballast LED resistors. Pick value for how bright you want LEDs at your operating voltage.
  • Note 2 - R34 and R35 are 2.2K I2C terminators. Needed for 3.3V operation and 400 KHz operation. R36 is INT* pullup.
  • Note 3 - LEDs - I like diffused Orange LEDs. I don't like clear LEDs.
  • Note 4 - Pick the height you like. I like 6mm high. You might like taller if you use keycaps.