Difference between revisions of "Front Panel V2 Assembly Sheet Rev 1"
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== Parts List == | == Parts List == | ||
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| 4 | | 4 | ||
| − | | [https://www.mouser.com/ProductDetail/Microchip-Technology/MCP23017-E-SP?qs=%2Fha2pyFadui%2Fg95npasgWvCenaXDGkkpmsV%252BWyecmP%2FfpZ89sK%2FTYQ%3D%3D MCP23017-E/SP] | + | | [https://www.mouser.com/ProductDetail/Microchip-Technology/MCP23017-E-SP?qs=%2Fha2pyFadui%2Fg95npasgWvCenaXDGkkpmsV%252BWyecmP%2FfpZ89sK%2FTYQ%3D%3D MCP23017-E/SP] - DIP |
| U1-U4 | | U1-U4 | ||
| | | | ||
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|- | |- | ||
| 32 | | 32 | ||
| − | | | + | | SW, Pushbutton, 6mm, (Note 4) |
| SW1-SW32 | | SW1-SW32 | ||
| | | | ||
| Line 55: | Line 57: | ||
* Note 1 - R1 and R2 are 2.2K I2C terminators. Needed for 3.3V operation and 400 KHz operation. | * Note 1 - R1 and R2 are 2.2K I2C terminators. Needed for 3.3V operation and 400 KHz operation. | ||
| − | * Note 2 - 1K ballast LED resistors. Pick value for how bright you want LEDs at operating voltage. | + | * Note 2 - 1K ballast LED resistors. Pick value for how bright you want LEDs at your operating voltage. |
* 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]. You might like taller if you use keycaps. | ||
Latest revision as of 15:53, 20 June 2021
Parts List
| Qty | Value | RefDes | Qty | Value | RefDes | |
|---|---|---|---|---|---|---|
| 4 | 10K, 1/4W | R3-R7 | 32 | LED, 5MM (NOTE 3) | DS1-DS32 | |
| 2 | 2.2K, 1/4W (NOTE 1) | R1,R2 | 1 | HEADER, RT ANG, 2X2 | J6 | |
| 32 | 1K, 1/4W (NOTE 2) | R5,R8-R38 | 1 | HEADER, RT ANG 1X4 | J3 | |
| 4 | MCP23017-E/SP - DIP | U1-U4 | 1 | HEADER, RT ANG, 1x2 | J1 | |
| 32 | SW, Pushbutton, 6mm, (Note 4) | SW1-SW32 | 1 | HEADER, RT ANG, 1x5 | J2 |
Notes
- Note 1 - R1 and R2 are 2.2K I2C terminators. Needed for 3.3V operation and 400 KHz operation.
- Note 2 - 1K ballast LED resistors. Pick value for how bright you want LEDs at your operating voltage.
- 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.
