Difference between revisions of "DS18S20"

From Land Boards Wiki
Jump to navigation Jump to search
 
Line 17: Line 17:
 
[[File:DS18S20-front.png]]
 
[[File:DS18S20-front.png]]
  
Pair of connectors provided for chaining together 1-wire sensors. That way the cabling can be simple.
+
* Pair of connectors provided for chaining together 1-wire sensors. That way the cabling can be simple.
Pinout matches the GVS (Ground, +V, Sensor) order of Arduino Sensor shields but for most uses only the G and S are needed.
+
* Pinout matches the GVS (Ground, +V, Sensor) order of Arduino Sensor shields but for most uses only the G and S are needed.
For the first device in a chain, J1 should be left open, R1 should be installed and power brought into the card on the V pin.
+
* For the first device in a chain, J1 should be left open, R1 should be installed and power brought into the card on the V pin.
For devices other than the first device in the chain, J1 connector should be jumpered across.  
+
* For devices other than the first device in the chain, J1 connector should be jumpered across.  
Parts List
+
 
 +
== Parts List ==
 +
<pre>
 
Desc Qty Footprint RefDes Mfg MfgPN Vendor VendorPN
 
Desc Qty Footprint RefDes Mfg MfgPN Vendor VendorPN
 
4.7K 1 R4 R1 Xicon 291-4.7K-RC Mouser 291-4.7K-RC
 
4.7K 1 R4 R1 Xicon 291-4.7K-RC Mouser 291-4.7K-RC
Line 28: Line 30:
 
CONN_3 2 PIN_ARRAY_3X1 J2, J3 FCI 68002-103HLF Mouser 649-68002-103HLF
 
CONN_3 2 PIN_ARRAY_3X1 J2, J3 FCI 68002-103HLF Mouser 649-68002-103HLF
 
DS18S20+ 1 TO92-123 U1 Maxim DS18S20 + Mouser 700-DS18S20
 
DS18S20+ 1 TO92-123 U1 Maxim DS18S20 + Mouser 700-DS18S20
Mounting Hole
+
</pre>
A single 4-40 mounting hole is provided to allow the card to be zip-tied into the location to be monitored. For permanent installation, the single point can be screwed down with a standoff.
+
 
 +
== Mounting Hole ==
 +
 
 +
*A single 4-40 mounting hole is provided to allow the card to be zip-tied into the location to be monitored. For permanent installation, the single point can be screwed down with a standoff.
  
 
== Datasheet ==
 
== Datasheet ==
  
 
Datasheet
 
Datasheet

Latest revision as of 14:31, 18 January 2020

Tindie-mediums.png

Ds1820-P750-720px.jpg

Description of the Design

Purpose is to have 1-Wire Temperature sensors which can be cheaply and easily deployed. DS18S20 sensors can be purchased for between $5 [1] from mouser) and $1.5 [2]

This board is small but powerful since all a 1-wire part needs to operate is a single wire (plus a ground).

The devices can be daisy-chained together (actually they are connected in parallel). The first device in a 1-Wire chain needs to have a 4.7K pullup to +5V and this card provides for that option.

DS18S20p.png

Connectors

DS18S20-front.png

  • Pair of connectors provided for chaining together 1-wire sensors. That way the cabling can be simple.
  • Pinout matches the GVS (Ground, +V, Sensor) order of Arduino Sensor shields but for most uses only the G and S are needed.
  • For the first device in a chain, J1 should be left open, R1 should be installed and power brought into the card on the V pin.
  • For devices other than the first device in the chain, J1 connector should be jumpered across.

Parts List

Desc	Qty	Footprint	RefDes	Mfg	MfgPN	Vendor	VendorPN
4.7K	1	R4	R1	Xicon	291-4.7K-RC	Mouser	291-4.7K-RC
CONN_1	2	MTG-4-40	MTG1, MTG2	N/A	N/A	N/A	N/A
CONN_2	1	PIN_ARRAY_2X1	J1	FCI	68002-102HLF	Mouser	649-68002-103HLF
CONN_3	2	PIN_ARRAY_3X1	J2, J3	FCI	68002-103HLF	Mouser	649-68002-103HLF
DS18S20+	1	TO92-123	U1	Maxim	DS18S20 +	Mouser	700-DS18S20

Mounting Hole

  • A single 4-40 mounting hole is provided to allow the card to be zip-tied into the location to be monitored. For permanent installation, the single point can be screwed down with a standoff.

Datasheet

Datasheet