Difference between revisions of "Raspberry Juice"
From BitWizard WIKI
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The Raspberry Juice can be found using I2C or SPI at address 0xA4, and has the following read ports: | The Raspberry Juice can be found using I2C or SPI at address 0xA4, and has the following read ports: | ||
{| border=1 | {| border=1 | ||
− | ! Port !! Returned value | + | ! Port !! Returned value (in milliseconds) |
|- | |- | ||
| 0x20 || Time until power off | | 0x20 || Time until power off | ||
|- | |- | ||
| 0x21 || Time until power on | | 0x21 || Time until power on | ||
+ | <!-- | ||
|- | |- | ||
| 0x30 || Absolute scheduled time of power off | | 0x30 || Absolute scheduled time of power off | ||
|- | |- | ||
− | | 0x31 || Absolute scheduled time of power on | + | | 0x31 || Absolute scheduled time of power on |
+ | --> | ||
|} | |} | ||
+ | |||
+ | Additionally, the following can be written to the Juice: | ||
+ | {| border=1 | ||
+ | ! Port !! Effect | ||
+ | |- | ||
+ | | 0x20 || Set the time in milliseconds until power off | ||
+ | |- | ||
+ | | 0x21 || Set the time in milliseconds until power on |
Revision as of 18:05, 9 July 2014
Overview
The Raspberry Juice serves as a power switch for the Raspberry Pi. This expansion board can turn the power on or off at a scheduled time.
Use
The Raspberry Juice can be found using I2C or SPI at address 0xA4, and has the following read ports:
Port | Returned value (in milliseconds) |
---|---|
0x20 | Time until power off |
0x21 | Time until power on |
Additionally, the following can be written to the Juice:
Port | Effect |
---|---|
0x20 | Set the time in milliseconds until power off |
0x21 | Set the time in milliseconds until power on |