Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

1 Wire to RS232 Serial Interface

Status
Not open for further replies.
T

technofreaks

Member level 2
Joined
Feb 6, 2008
Messages
43
Helped
3
Reputation
6
Reaction score
2
Trophy points
1,288
Location
Bangalore
Activity points
1,501
1 Wire to Serial Interface Circuit using max3232E IC, This interface can daisy chain 1Wire device such as 18S20
Supply Voltage 5VDC, (schematic / ready PCB is available )
1W-DSensor-RS232DS-V1.jpg
 

suds07 said:
1 Wire to Serial Interface Circuit using max3232E IC, This interface can daisy chain 1Wire device such as 18S20
Supply Voltage 5VDC, (schematic / ready PCB is available )
View attachment 77383
Click to expand...


What MAX3232? 1-Wire dont need MAX232 or MAX3232.


RS232 Active 1-Wire Adapter 9-pin 9097U

Active - 9097u_sch.png



RS232 Passive 1-Wire Adapter 9-pin 9097E

rs232.png

DS9097 9-pin Passive.png



USB 1-Wire Adapter 2490

1-wire_adapter.png

DS2490 USB Interface.gif
 

Yes it can be done with out MAX3232, its a Level converter, instead you can use transistor / doide

2490 is USB version, I have made circuit for USB also.
 

technically speaking it's not one wire am I correct in saying you still have to connect the GND as well, if so this is 2 wires
 

it reguires return path which is GND , Two wire communication (SPI) will have 3 wires so on..
 

A funy circuit.How about the cost?If cost up is more than one wire cost,it may be without valuable.
 

oh,it's so expensive.For RMB,it needs about 74
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top