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--- uphp:functions:ow_write [2017/05/11 22:40]
jeff
+++ uphp:functions:ow_write [2021/09/13 05:57] (current)
@@ Line 1: / Line 1: @@
-======array_key======
+======ow_write======
-<badge>WMPRO, WMMINI FW >= 1.953</badge> <badge>WMMEGA FW >= 2.0</badge>
+<badge>WMPRO >= 1.0</badge> <badge>WMMEGA FW >= 2.0</badge>
-Return the key for an <html><b><span style="color:green">array<span style="color:black"></b></html> index
+Write a byte to the OneWire bus
 ====Description====
 <well size="sm"><html>
-<span style="font-size:125%;color:green">string
+<span style="font-size:125%">ow_write (
-<span style="color:black">array_key (
-<span style="color:green">array
-<span style="color:blue">$array<span style="color:black">,
 <span style="color:green">int
-<span style="color:blue">$index
+<span style="color:blue">$value
 <span style="color:black">)
 </html></well>
-====Parameters====
+This function will write a single byte to the OneWire bus.  This is a low level function allowing custom OneWire operations.
-<html><b><span style="color:blue">$array<span style="color:black"></b>: An <b><span style="color:green">array<span style="color:black"></b> with key/value pairs</html>
+====Parameter====
-<html><b><span style="color:blue">$index<span style="color:black"></b></html>: The index for the array element (the first element is index 0)
+<html><b><span style="color:blue">$value<span style="color:black"></b>:  An <b><span style="color:green">integer<span style="color:black"></b></html> value of the byte to send to the OneWire bus
 ====Return Values====
-<html><b><span style="color:green">String<span style="color:black"></b></html> containing the key name of the array element at the specified index
+None
 ====Example====
-===Create an array with key value pairs, iterate through the array, print out all keys and their associated values===
 <code php>
-<pre><?
+<?
-  $arr=array();
+  ow_write(10);
-  $arr['name']="John";
+  ow_write(11);
-  $arr['age']=30;
+  ow_write(0x55);
-  $arr['status']=1;
+?>
-  for ($i=0; $i < sizeof($arr); $i++) {
-    $key=array_key($arr,$i);
-    print("Key at Index ".$i." is ".$key." and value is ".$arr[$key]."\r\n");
-  }
-?></pre>
-</code>
-The above example will output:
-<code>
-Key at Index 0 is name and value is John
-Key at Index 1 is age and value is 30
-Key at Index 2 is status and value is 1
 </code>
 ====See Also====
-[[array()]] - Create an <html><b><span style="color:green">array<span style="color:black"></b></html>, with optional values
+[[ow_first()]] - Initiate a OneWire bus scan and return the address of the first device found
-[[array_keys()]] - Return keys for an <html><b><span style="color:green">array<span style="color:black"></b></html> that has key/value pairs
+[[ow_next()]] - Return the address of the next OneWire device found (after an ow_first)
-[[sizeof()]] - Return the number of elements in an <html><b><span style="color:green">array<span style="color:black"></b></html>
+[[ow_read_temp()]] - Read a temperature from a device on the OneWire bus
-[[print_r()]] - Dump the contents of an <html><b><span style="color:green">array<span style="color:black"></b></html> to the current output
+[[ow_reset()]] - Reset the OneWire bus
-[[uphp:variables|uPHP Variable Types and Limits]]
+[[ow_read()]] - Read a byte from the OneWire bus

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