Difference between revisions of "Front Panel Assembly Sheet Rev 1"
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* Note 1 - 1K ballast LED resistors. Pick value for how bright you want LEDs at operating voltage. | * Note 1 - 1K ballast LED resistors. Pick value for how bright you want LEDs at operating voltage. | ||
| − | * Note 2 - R34 and R35 are 2.2K I2C terminators. Needed for 3.3V operation and 400 KHz operation. | + | * 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 Orange, not clear LEDs. | * Note 3 - LEDs - I like Orange, not clear LEDs. | ||
Revision as of 15:07, 20 June 2021
Parts List
| Qty | Value | RefDes | Qty | Value | RefDes | |
|---|---|---|---|---|---|---|
| 4 | 10K | R33, R36-R38 | 32 | LED (NOTE 3) | DS0-DS31 | |
| 32 | 1K (NOTE 1) | R1-R32 | 1 | HEADER, RT ANG, 1x2 | J1 | |
| 3 | 2.2K (NOTE 2) | R34-R36 | 1 | HEADER, RT ANG, 1x5 | J2 | |
| 32 | SW_Push | SW0-SW31 | 1 | HEADER, RT ANG, 1X4 | J3 | |
| 4 | MCP23017-E/SP | U1-U4 | 1 | HEADER, RT ANG, 2X2 | J4 |
Notes
- Note 1 - 1K ballast LED resistors. Pick value for how bright you want LEDs at 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 Orange, not clear LEDs.
