Re: ESR meter upgrades
Good to know. Thank you. I am happy with the project.
Good to know. Thank you. I am happy with the project.
-
-
Re: ESR meter upgrades
i'm wondering if an adapter could be made for testing optocouplers.
after one gave me some agrivation yesterday!Comment
-
-
Re: ESR meter upgrades
That oughta be doable but I think you'd need a 4th test lead configured so you can flash the led side with two leads and check the conductivity of the phototrans side with two in order to preserve isolation. If you weren't concerned about complete isolation I think you could do a basic test with three leads using one common for both sides of the coupler.Comment
-
Re: ESR meter upgrades
obviously, i had to make them up.
it's not just the makefile,
the source is here:
https://www.mikrocontroller.net/svnb...ster/Software/
the files i'm changing are:
the makefile,
Transistortester.h < to change the version string,
function_menu.c < to make the rotary encoder work better in the menu.Comment
-
Re: ESR meter upgrades
Well, I figured you did but what I mean is I want to know more about what you've changed because I'm more curious than can be satisfied with "something vague" as a change description.Comment
-
Re: ESR meter upgrades
update
this one fixes a bug wih BJT transistors.
put the makefile in now
Comment
-
Re: ESR meter upgrades
on the makefile i had to change the lcd contrast, the battery sense voltdrop, the rotary & serial settings.
maybe the pullup resistors - cant remember - you can diff it now.
on the menu code, i just commented-out all the code that tried to interpret the button duration to do menu up/down so it just does "select" now.
**which is why i say not to use this on a unit without the rotary encoder - you wont be able to navigate the menu!Comment
-
Re: ESR meter upgrades
Very cool, thanks much. I haven't updated since I got mine going, been dealing with other non-tech matters lately. I really appreciate the time and energy you put into this project. I know you dig doing it anyway but you've certainly got my gratitude. Thanks buddy
Comment
-
Re: ESR meter upgrades
wow!
read this:
https://github.com/svn2github/transi...32dbf07841d6a8
time to upgrade the crystal from 8 to 16Mhz
and fresh from the compiler
8 and 16MHz versions
Last edited by stj; 02-03-2016, 06:41 AM.Comment
-
Re: ESR meter upgrades
Trippy. This project goes on and on... cool. Any particular spec on the 16MHz xtal or will any do that fits?Comment
-
Re: ESR meter upgrades
same size as the originalComment
-
Re: ESR meter upgrades
new update.
cleaning up the new crystal tester function.
Comment
-
Re: ESR meter upgrades
dont download 632 - i made a slip wih the menu code!
Comment
-
Re: ESR meter upgrades
Is there any advantage to using a 16MHz over the 8MHz other than for crystal/resonator testing?Comment
-
Re: ESR meter upgrades
probably not, although it may increase the range of the frequency generator function.
it will also flatten the battery a little faster.Comment
-
Re: ESR meter upgrades
another update.
Comment
-
Re: ESR meter upgrades
quick warning, dont upgrade to a 16MHz crystal if you didnt already.
i'm looking into if the atmel can be run as nature intended - at 20MHz
Comment
-
Re: ESR meter upgrades
Ok. I'm not going for the xtal upgrade yet and I'm at SVN630 for now. I haven't had any need to test xtals or resonators but it'd be fun anyway I suppose.Comment
-
I read EBOOK of Testing Electronic Component and found that
"In order to test the small blue resin coated ceramic disk capacitor which has 104 50v specification,it is possible to test this small ceramic capacitor by making use of analogue meter.
Set to times 10Kohm that has 12v output from the probe to check disorder of ceramic capacitor.
It is not uncommon that testing result of digital capacitance meter is okay,But It show shorted reading when you check it with analogue meter."
Is it really possible to test small ceramic disc capacitor with analogue... -
I have had with regular AA batteries that leak this meter is expensive new I already replaced the battery battery clips once and the same thing happened again and I am tried of so it is getting modified to accommodate lithium ion batteries that are the same size excluding the positive terminal and removing the battery clips I will have enough room for the BMS protection board
I going to put 3 lithium ion battery in parallel with the BMS protection board and a way to charge the battery externally and heat shrink the battery pack and use a JST connector so I easily remove the battery... -
Hi
I want to change the scale of an analog meter, to monitor the charge of an li-ion single cell, so the needle at the end would point 4.2 volts and the 0 on the meter would point 2.5 volts or so, i tried to add diodes or a zener in series with the meter but the changes of the ambient temperature also changes the voltage value on the meter
I wonder how i can accomplish this so the meter would be precise at any temperature ?
Thnaks -
About a month ago we had a transformer jumper wire that burned in two different places between two transformers caused over $200 thousand dollars worth of damage to VFD drives at least 10 of them and a memory card and quite a few power supply as well
Now we have most of the equipment that got damaged back up and running except a feeder that has issues and we are waiting for some parts for
Now we also have another piece of equipment that was blowing fuses on the 110 volt controller switch circuit with the “E” stops and one switching power (24 volt) supply and a transformer... -
hi guys so i have this ps4 fat 1215 i believe ( the one with the ps4 pro/slim newer encoder ic ) so i replaced hdmi and 2 blown filters and still no pic so i replaced encoder and still no pic. i made sure port is solid even checked with a breakout hdmi and tested ground and data lines.. Filters are all good , though 2 of the newer ones are larger then the original ones i dont know if that matters ?
Made sure under the scope encoder pins all look solid went over with fine tip and solder again. Idk but this thing is stressing me out..
ps4 seems to boot fine blue light then solid...
Comment