Rew: /* External resources */

2014-06-02T16:16:50Z

External resources

Rew: Created page with "XXX need photo The DIO board (depicted: the SPI version) This is the documentation page for the SPI_POWER and I2C_POWERbo..."

2014-05-30T15:57:38Z

Created page with "thumb|300px|alt=The power board|XXX need photo The DIO board (depicted: the SPI version) This is the documentation page for the SPI_POWER and I2C_POWERbo..."

New page

[[File:SPI_DIO.jpg|thumb|300px|alt=The power board|XXX need photo The DIO board (depicted: the SPI version)]]

This is the documentation page for the SPI_POWER and I2C_POWERboards.

== Overview ==

This board enables you to power your main CPU (e.g. a raspberry pi) from an USB powersupply. This board will then function as a powerswitch for your project. This is especially useful if you're running off a battery.

== Assembly instructions ==

None: the board comes fully assembled.

== External resources ==

=== Datasheets ===

== Additional software ==

=== Related projects ===

== Pinout ==

For the SPI connector see: [[SPI_connector_pinout]].
For the I2C connector see: [[I2C_connector_pinout]].

{| border=1
! pin !! function
|-
| 1 || GND
|-
| 2 || SW
|}

By grounding "sw" you can toggle the powerstatus of the slave system.

=== LEDs ===

The only LED is a power indicator. To conserve power, the led is OFF when the slave is off.

== jumper settings ==

See [[solder jumpers]] on how to change the solder jumper.

By changing the solder jumper SJ1, you can make the connector SPI1 (nearest the board edge) into an ICSP programming connector for the attiny44 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: [[POWER_protocol]]

You should also read the [[General_SPI_protocol]] notes.
<br>

== The software ==

== Default operation ==

== Future hardware enhancements ==

== Future software enhancements ==

== Changelog ==

=== 1.0 ===
* Initial public release

@@ Line 11: / Line 11: @@
 None: the board comes fully assembled.
-== External resources ==
+== Specifications ==
+When you schedule a "wakeup" and then power down the slave, the module will enter a low-power mode. In this mode, it will consume about 2mA. The button is checked less often than when the module is fully away. A longer keypress may be required to activate the slave.
+The current consumption will be about 10mA when the slave is active. The sleep mode cannot be activated because that would interfere with the communications protocols.
-=== Datasheets ===
+=== Datasheets ===
 == Additional software ==

Power - Revision history

Rew: /* External resources */

Rew: Created page with "XXX need photo The DIO board (depicted: the SPI version) This is the documentation page for the SPI_POWER and I2C_POWERbo..."