Difference between revisions of "Motor"
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=== Datasheets === |
=== Datasheets === |
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* [www.atmel.com/Images/doc2545.pdf the CPU] |
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* [http://www.ti.com/lit/gpn/lm5109b The FET driver] |
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* [http://www.fairchildsemi.com/ds/FD/FDS8884.pdf The 5A FETs] |
* [http://www.fairchildsemi.com/ds/FD/FDS8884.pdf The 5A FETs] |
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* [http://www.vishay.com/docs/65709/sij458dp.pdf The 15A FETs] |
* [http://www.vishay.com/docs/65709/sij458dp.pdf The 15A FETs] |
Revision as of 17:46, 11 May 2012
This is the documentation page for the SPI_motor board.
Overview
This board enables you to control two regular (brushed) DC motors, or one stepper motor.
Assembly instructions
None: the board comes fully assembled.
Specifications
Board size: 50mm x 50mm Maximum motor voltage: 24V Maximum motor current: 5A or 15A, depending on your version
Possible Configurations
We ship two different versions of this device; a 5A version, and a 15A version. A sticker on the bottom of the board defines which of the two it is.
External resources
Datasheets
- [www.atmel.com/Images/doc2545.pdf the CPU]
- The FET driver
- The 5A FETs
- The 15A FETs
Additional software
Related projects
Pinout
For the SPI connector see: SPI_connector_pinout.
The output connector is connected as follows:
(Looking at the business end of the connector, counting from left to right)
pin | function |
---|---|
1 | Output A1 |
2 | Output A2 |
3 | Output B1 |
4 | Output B2 |
5 | GND |
6 | Vin |
Jumper
The FET drivers need a 8V to 14V power supply. Plese refer to the following table for the correct jumper settings:
Motor voltage | jumper setting |
---|---|
<8V | No jumper, external 8V to 14V power source connected to pin 2 |
8V to 14V | Jumper on pins 1 and 2 |
>14V | Jumper on pins 2 and 3 |
LEDs
The only LED is a power LED.
jumper settings
See solder jumpers on how to change the solder jumper.
By changing the solder jumper SJ1, you can make connector SPI1 (nearest to the board edge) into the ICSP programming connector for the ATmegaxx8 on the board.
Protocol
For the intro to the SPI and I2C protocols read: SPI versus I2C protocols
The board specific protocol can be found here: DIO_protocol
You should also read the General_SPI_protocol notes.
For arduino, a sample PDE is available, called ardemo_lcd.pde, also at BitWizard software download directory .
This is a demo to send things using SPI to the lcd board. The SPI routines there are applicable for the DIO, 3FETS and 7FETS boards as well.
The software
Default operation
Future hardware enhancements
Future software enhancements
TODO: write a library to make handling this board easy.
Changelog
1.0
- Initial public release