1-Wire Hub - Revision history

KKoPV: /* Normal mode */

2020-09-11T05:34:02Z

‎Normal mode

2020-09-11T05:31:06Z

‎Normal mode

2018-05-10T17:31:12Z

‎Normal mode

2018-02-01T11:56:39Z

‎Normal mode

2018-02-01T11:56:03Z

‎Normal mode

2017-11-15T20:28:22Z

‎Normal mode

2017-11-15T20:27:54Z

‎Normal mode

2017-11-15T20:26:43Z

‎Normal mode

2017-11-15T20:26:03Z

‎Normal mode

2017-11-15T20:06:56Z

@@ Line 32: / Line 32: @@
 With this topology I'm able to build a '''physical''' star wiring from a central hub - but '''electrically''' I have only one long data bus.
-For the star wires I used a bit thicker telefon wire, e.g. an [https://www.amazon.de/s?k=J-Y%28St%29Y+2x2x0.8mm²]
+For the star wires I used a bit thicker telefon wire, e.g. an [https://www.amazon.de/s?k=J-Y%28St%29Y+2x2x0.8mm J-Y(St)Y 2x2x0.8mm²]
 = Draft =

@@ Line 32: / Line 32: @@
 With this topology I'm able to build a '''physical''' star wiring from a central hub - but '''electrically''' I have only one long data bus.
-For the star wires I used a bit thicker telefon wire, e.g. an [https://www.amazon.de/s/field-keywords=J-Y(St)Y+2x2x0.8 J-Y(St)Y 2x2x0.8mm²]
+For the star wires I used a bit thicker telefon wire, e.g. an [https://www.amazon.de/s?k=J-Y%28St%29Y+2x2x0.8mm²]
 = Draft =

@@ Line 32: / Line 32: @@
 With this topology I'm able to build a '''physical''' star wiring from a central hub - but '''electrically''' I have only one long data bus.
-For the star wires I used a bit thicker telefon wire, e.g. an J-Y(ST)Y 2x2x0.8mm²
+For the star wires I used a bit thicker telefon wire, e.g. an [https://www.amazon.de/s/field-keywords=J-Y(St)Y+2x2x0.8 J-Y(St)Y 2x2x0.8mm²]
 = Draft =

@@ Line 30: / Line 30: @@
 [[File:1-WireLongStar.png]]
-With this topology I'm able to build a '''physical''' star wiring from a central hub - but I have only one '''electrical''' long bus.
+With this topology I'm able to build a '''physical''' star wiring from a central hub - but '''electrically''' I have only one long data bus.
 For the star wires I used a bit thicker telefon wire, e.g. an J-Y(ST)Y 2x2x0.8mm²

@@ Line 30: / Line 30: @@
 [[File:1-WireLongStar.png]]
-With this topology I'm able to build a star wiring from a central hub - but physically I have only one long bus.
+With this topology I'm able to build a '''physical''' star wiring from a central hub - but I have only one '''electrical''' long bus.
 For the star wires I used a bit thicker telefon wire, e.g. an J-Y(ST)Y 2x2x0.8mm²

@@ Line 32: / Line 32: @@
 With this topology I' able to build a star wiring from a central hub but physically I have only one long bus.
-For the star wires I used a bit thicker telefon wire, abt. 0.6mm²
+For the star wires I used a bit thicker telefon J-Y(ST)Y 2x2x0.8mm²
 = Draft =

← Older revision		Revision as of 20:26, 15 November 2017
Line 24:		Line 24:

	Here are also the recommended resistor and diode included.		Here are also the recommended resistor and diode included.
		+
		+	And here comes the trick to build the recommended long wire bus.
		+
		+
		+	[[File:1-WireLongStar.png]]
		+
		+	With this topology I' able to build a star wiring from a central hub but physically I have only one long bus.
		+
		+	For the star wires I used a bit thicker telefon wire, abt. 0.6mm²

	= Draft =		= Draft =

@@ Line 9: / Line 9: @@
 * '''Parasite power mode''' requires both DS18B20 GND (pin 1) and V<sub>DD</sub> (pin 3) to be connected to ground. The DQ pin (pin 2 - the middle pin) is the data/parasite power line. The data line requires also a pull-up resistor of 4.7 kΩ connected to +5 V.
-If you have long 1-Wire network runs and are having problems with glitches you should add a Schottky diode to the end of your network. Typically a 1N5817 diode reverse biased across sensors will achieve this. Solder the side with the stripe to data output (DQ pin 2) and the other side to ground (GND pin 1) of the DS18S20.
+If you have long 1-Wire network runs and are having problems with glitches<ref>https://www.digitemp.com/documentation.shtml</ref> you should add a Schottky diode to the end of your network. Typically a 1N5817 diode reverse biased across sensors will achieve this. Solder the side with the stripe to data output (DQ pin 2) and the other side to ground (GND pin 1) of the DS18S20.
 == Normal mode ==