Inexpensive 3.5 digit voltmeter HELP
I am looking to either make or buy a 3.5 digit voltmeter. I need to
read the voltage of a wire that varies from 0v to 1v. I have seen
many units for over 150$. I know they must be cheaper than that
somewhere. Also, does anyone know where I can get just the LCD
display for such a project? What IC chips would I need to drive such
a monster?
Thanks
rick
read the voltage of a wire that varies from 0v to 1v. I have seen
many units for over 150$. I know they must be cheaper than that
somewhere. Also, does anyone know where I can get just the LCD
display for such a project? What IC chips would I need to drive such
a monster?
Thanks
rick
Comments
can also try surplus places (e.g., Herbach & Rademan). $150 seems very
expensive for a DVM that only needs to read voltage (many do other
measurements as well)
Original Message
From: rblundel@t... [noparse]/noparse]SMTP:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=iDim6ac8o1s9K6sTrDc_GYzUkvbZPluw_bONUjgWiwCJO1H_VgTrIumzYlbE8O05GVuqz2Dft3ArI-NDTJSJ0X3H]rblundel@t...[/url
Sent: Tuesday, December 04, 2001 3:03 PM
To: basicstamps@yahoogroups.com
Subject: [noparse][[/noparse]basicstamps] Inexpensive 3.5 digit voltmeter HELP
I am looking to either make or buy a 3.5 digit voltmeter. I need to
read the voltage of a wire that varies from 0v to 1v. I have seen
many units for over 150$. I know they must be cheaper than that
somewhere. Also, does anyone know where I can get just the LCD
display for such a project? What IC chips would I need to drive
such
a monster?
Thanks
rick
To UNSUBSCRIBE, just send mail to:
basicstamps-unsubscribe@yahoogroups.com
from the same email address that you subscribed. Text in the
Subject and Body of the message will be ignored.
Your use of Yahoo! Groups is subject to
http://docs.yahoo.com/info/terms/
put them on sale for around $5.00. HF is primarily a West Coast Company,
but you can reach them at: www.harborfreight.com and order on line. Of
course you will have to pay shipping , but they are quite fair on their
shipping charges. The meters I refer to are manufactured in China, but I
have found them entirely satisfactory for everything except for extreme
accuracy situations. They perform favorably with the under $100.00 units
from the major manufacturers.
Hope this helps.
Henry
Original Message
From: <rblundel@t...>
To: <basicstamps@yahoogroups.com>
Sent: 04 December, 2001 12:02 PM
Subject: [noparse][[/noparse]basicstamps] Inexpensive 3.5 digit voltmeter HELP
> I am looking to either make or buy a 3.5 digit voltmeter. I need to
> read the voltage of a wire that varies from 0v to 1v. I have seen
> many units for over 150$. I know they must be cheaper than that
> somewhere. Also, does anyone know where I can get just the LCD
> display for such a project? What IC chips would I need to drive such
> a monster?
>
> Thanks
> rick
>
>
> To UNSUBSCRIBE, just send mail to:
> basicstamps-unsubscribe@yahoogroups.com
> from the same email address that you subscribed. Text in the Subject and
Body of the message will be ignored.
>
>
> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
>
>
>