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For apberg
I looked up the project for you
is this it ?
http://www.siliconchip.com.au/cms/A_112249/article.html
I will see if I can get a pcb or kit for you
this seems to be the pcb it was updated
sc 04112102 $ 27.50 3210B USB Data Logger - RCS A/W 2011Jan
Here in australia only one company makes the pcbs for SC
the owner has recently died
but I will try and make some enquires if his son
is still making the boards
http://users.tpg.com.au/rcspcb/index1.htm
I may have found a kit for you, says low stocks but need to check $79.95 AUD plus postage
http://www.altronics.com.au/index.as...=item&id=K2572
some changes in the mean time
USB Data Logger, December 2010-February 2011: (1) In order to support baud rates greater than 57.6kbps (ie, up to 0.5Mbps), change the two 100nF monolithic capacitors on the A0/D4 and A1/D5 inputs to 10nF. (01/11)
(2) To improve filtering of the +3.3V supply rail, the 22uF tantalum capacitor on the output of REG1 should be changed to a 220uF 10V low-ESR electrolytic (Jaycar RE-6300). This applies to both the circuit diagram in Pt.1 (December 2010, page 3
and to the overlay diagram in Pt.2 (January 2011, page 35). Note that there are two 22uF tantalum capacitors shown adjacent to REG1 on the overlay. The capacitor on the left is the one to change. The parts list in Pt.1 should be amended accordingly. (02/11)
(3) The specified inductor has been found to be not suitable for the frequencies at which the regulator operates. This can cause excessive current to be drawn at start-up and with low battery voltages. As a result, it should be changed to a 47uH high frequency ferrite choke (Jaycar LF-1100) which fits in its place. Also, a new version of the firmware is now available (v9.92) which, in combination with the new inductor, reduces the current drawn at start-up as well as fixing some other bugs. (04/11)
(4) Revised software reduces start-up power consumption and squashes a few bugs - see May 2011 issue. (05/11)
I looked up the project for you
is this it ?
http://www.siliconchip.com.au/cms/A_112249/article.html
I will see if I can get a pcb or kit for you
this seems to be the pcb it was updated
sc 04112102 $ 27.50 3210B USB Data Logger - RCS A/W 2011Jan
Here in australia only one company makes the pcbs for SC
the owner has recently died
but I will try and make some enquires if his son
is still making the boards
http://users.tpg.com.au/rcspcb/index1.htm
I may have found a kit for you, says low stocks but need to check $79.95 AUD plus postage
http://www.altronics.com.au/index.as...=item&id=K2572
some changes in the mean time
USB Data Logger, December 2010-February 2011: (1) In order to support baud rates greater than 57.6kbps (ie, up to 0.5Mbps), change the two 100nF monolithic capacitors on the A0/D4 and A1/D5 inputs to 10nF. (01/11)
(2) To improve filtering of the +3.3V supply rail, the 22uF tantalum capacitor on the output of REG1 should be changed to a 220uF 10V low-ESR electrolytic (Jaycar RE-6300). This applies to both the circuit diagram in Pt.1 (December 2010, page 3
and to the overlay diagram in Pt.2 (January 2011, page 35). Note that there are two 22uF tantalum capacitors shown adjacent to REG1 on the overlay. The capacitor on the left is the one to change. The parts list in Pt.1 should be amended accordingly. (02/11)(3) The specified inductor has been found to be not suitable for the frequencies at which the regulator operates. This can cause excessive current to be drawn at start-up and with low battery voltages. As a result, it should be changed to a 47uH high frequency ferrite choke (Jaycar LF-1100) which fits in its place. Also, a new version of the firmware is now available (v9.92) which, in combination with the new inductor, reduces the current drawn at start-up as well as fixing some other bugs. (04/11)
(4) Revised software reduces start-up power consumption and squashes a few bugs - see May 2011 issue. (05/11)
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