Difference between revisions of "SPI-POTX2"
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* Dual Digital potentiometer | * Dual Digital potentiometer | ||
| − | ** [http://ww1.microchip.com/downloads/en/DeviceDoc/22060b.pdf MCP4231 Digital Pot] | + | ** [http://ww1.microchip.com/downloads/en/DeviceDoc/22060b.pdf MCP4231 Dual Digital Pot] |
** 7-bit: 128 Resistors (129 Steps) | ** 7-bit: 128 Resistors (129 Steps) | ||
** Zero Scale to Full Scale Wiper operation | ** Zero Scale to Full Scale Wiper operation | ||
| Line 18: | Line 18: | ||
* 2.7V to 5.5V | * 2.7V to 5.5V | ||
* Daisy-chain SPI connector | * Daisy-chain SPI connector | ||
| + | ** Slave Select (SS) should be star connected | ||
* 49x49mm form factor | * 49x49mm form factor | ||
* (4) #4-40 mounting holes | * (4) #4-40 mounting holes | ||
| − | |||
== Connectors == | == Connectors == | ||
Revision as of 11:33, 5 April 2022
Contents
Features
- Dual Digital potentiometer
- MCP4231 Dual Digital Pot
- 7-bit: 128 Resistors (129 Steps)
- Zero Scale to Full Scale Wiper operation
- 10K
- Other resistances optional: 5K, 50K, 100K
- Power on reset to half wiper value
- SPI Interface
- SPI Serial Interface (10 MHz, modes 0,0 & 1,1)
- High-Speed Read/Writes to wiper register
- 10 MHz (max SPI speed)
- 2.7V to 5.5V
- Daisy-chain SPI connector
- Slave Select (SS) should be star connected
- 49x49mm form factor
- (4) #4-40 mounting holes
Connectors
J1, J3 - SPI connector
- MISO
- +V
- SCK
- MOSI
- SS
- GND
J2 - SPI Connector
- Matches Arduino SPI connector pinout
- MISO
- +V
- SCK
- MOSI
- SS
- GND
POT0, POT1
- GND
- B SIDE
- WIPER
- A SIDE
- +V
