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--- interfaces:1wire [2015/10/22 21:17] – [1wire] darron
+++ interfaces:1wire [2016/01/20 10:21] (current) – [KEYES DS18B20 module] darron
@@ Line 2: / Line 2: @@
 <wrap right>
 {{:interfaces:1wire.jpg?200}}
+\\ \\
+{{:interfaces:1wire-2.jpg?200}}
+\\ \\
+{{:interfaces:keyes.jpg?200}}
 </wrap>
@@ Line 25: / Line 29: @@
 | 7  | GPIO4 | DATA|
-Data is pulled high via 4K7 to 3V3 power.
+The relevant pins on the Pi header are as follows.
+<code>
+                +---P1---+
+V3             01      02 5V
+GPIO0/GPIO2     03 A/A+ 04 5V
+GPIO1/GPIO3     05 B/B+ 06 GND
+GPIO4           07 2    08 GPIO14/TX
+                ..      ..
+</code>
+NB. The 1 wire data line must pulled high via 4K7 to 3V3 power.
 === DS18B20 Thermometer ===
 <code>
@@ Line 46: / Line 62: @@
 </code>
+=== KEYES KY-001 DS18B20 module ===
+This module re-orders the pins so beware.
+<code>
++-------+
+|DS18B20|
+|       |
++-G R Y-+
+  | | |
+G GROUND
+R POWER
+Y DATA
+</code>
+DATA is pulled up via a 4K7 resistor and an LED. The LED will flash
+during communication with the chip.
 === DS2431 EEPROM ===
 <code>