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uphp:functions:ow_first
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uphp:functions:ow_first [2017/05/11 09:58] admin created |
uphp:functions:ow_first [2021/09/13 05:57] (current) |
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| ======ow_first====== | ======ow_first====== | ||
| - | < | + | < |
| - | Start a new OneWire bus scan and return the first device | + | Initiate |
| ====Description==== | ====Description==== | ||
| <well size=" | <well size=" | ||
| - | <span style=" | + | <span style=" |
| - | <span style=" | + | <span style=" |
| - | <span style=" | + | |
| </ | </ | ||
| - | ====Parameter==== | + | This function starts a new OneWire bus scan and provides the address of the first device found. |
| - | none | + | ====Parameters==== |
| + | |||
| + | None | ||
| ====Return Values==== | ====Return Values==== | ||
| - | An < | + | An < |
| ====Example==== | ====Example==== | ||
| <code php> | <code php> | ||
| - | <pre><? | + | <? |
| $arr=ow_first(); | $arr=ow_first(); | ||
| if ($arr) { | if ($arr) { | ||
| - | $devname=sprintf(" | + | $devname=sprintf(" |
| - | print(" | + | print(" |
| - | } else print(" | + | } else { |
| + | | ||
| + | } | ||
| ?> | ?> | ||
| </ | </ | ||
| + | |||
| ====See Also==== | ====See Also==== | ||
| - | [[ow_next()]] - Get next Onewire | + | [[ow_next()]] - Return the address of the next OneWire |
| - | [[ow_read()]] - Read from onewire | + | |
| - | [[ow_read_temp()]] - Read a temperature from a device | + | [[ow_read()]] - Read a byte from the OneWire |
| - | [[ow_reset()]] - Reset the onewire | + | |
| - | [[ow_write()]] - Write to onewire | + | [[ow_read_temp()]] - Read a temperature from a device |
| + | |||
| + | [[ow_reset()]] - Reset the OneWire | ||
| + | |||
| + | [[ow_write()]] - Write a byte to the OneWire | ||
| - | </ | + | [[sprintf()]] - Return a formatted < |
uphp/functions/ow_first.1494496688.txt.gz · Last modified: 2021/09/13 05:56 (external edit)
