Categories
Statistics
Flag Counter
Since 08.08.2014
Counts only, if "DNT = disabled".

Your IP is 44.213.60.33
ec2-44-213-60-33.compute-1.a
Info
Valid HTML 4.01 Transitional Creative Commons Lizenzvertrag
rss
เราจะทำแบบวิศวกรผู้ยิ่งใหญ่
We love the King
23. July 2024
Your valuable opinion :
5 stars

Avg. 6.00 from 3 votes.



LIMITATIONS
Due to our Software License we must not allow to use the Target 3001 File for commercial use !

Favourites  Target 3001 Website
trouble_ut803_serial.php    5300 Bytes    22-04-2024 03:10:41


UT 803 :: RS232 / Let's get serial




The UT 803 is a low cost yet precise lab multimeter. The Serial Port (RS232) obviously has no output ... unless you supply it via Pin 4 and 8 of the SUB-D jack.


UT 803




The supply of the RS232 Board may be done with the handshake signals, but if you build your own measurement setup, this is likely to be overseen. (The manual forgot to mention that) As you may see on the (reverse engineered) schematics, a positive supply (+5V to +12V) must be applied to PIN 4, whereas a negative voltage (GND or -12V) must be applied to Pin 8.


UT 803


adubli  Schematics (PDF)
jpeg  Schematics (JPG)
jpeg  Schematics (TARGET.3001)

In order to see if the circuit works, we suggest you use HTERM or an Oscilloscope.
In order to comply with RS-232 Specifications, you should use at least +/- 5 V.


Serial Data



UT 803
The pcb inside
UT803
and the connector outside



Just as a reminder : Baud Rate 19200, 1 Start bit, 1 Stop bit, 7 Data bit. Parity : odd





✈ Share your thoughts



The webmaster does not read these comments regularely. Urgent questions should be send via email. Ads or links to completely uncorrelated things will be removed.


Your Browser says that you allow tracking. Mayst we suggest that you check that DNT thing ?

 
t1 = 6585 d

t2 = 191 ms

★ ★ ★  Copyright © 2006 - 2024 by changpuak.ch  ★ ★ ★

Impressum