Re: ESR meter upgrades
more improvements
details here:
https://github.com/svn2github/transi...commits/master
more improvements
details here:
https://github.com/svn2github/transi...commits/master
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Re: ESR meter upgrades
get ready for - optocoupler testing!
soon.Comment
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Re: ESR meter upgrades
now tests optocouplers.
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Re: ESR meter upgrades
not worth it, if you take the china price and add European postage to forward it, you damn well ad 50% to the price before you even add the programming header & rotary encoder & crystal.
you would be doubling the original price by the time your done!Comment
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Re: ESR meter upgrades
maybe the chinese should include the header and faster crystal - then sell a bundle with the programmer.Comment
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Re: ESR meter upgrades
hi.
When upgrade to 16 mhz crystal , need to change fuses values?Comment
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Re: ESR meter upgrades
no, but if you didnt flash before then the chip will be erased to clear the locks.
fuse values are in the avrdude text file.Comment
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Re: ESR meter upgrades
here is a new build.
same code as before, but an extra version with no serial but nice fonts restored.Comment
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Re: ESR meter upgrades
i have an important question to anybody using or planning to use these testers.
what frequency's do you use or need from the frequency generator?
because i'm making large changes to it to save space.
i have a private test version that just generates 50Hz, 60Hz, 100Hz, 120Hz.
these frequency's are mains derivatives that can be used when testing things that time themselves from the mains like clocks.
(or comodore 64's!)
so lets hear it - what do you need?Comment
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Re: ESR meter upgrades
bugfixes & worthy stuff.
16MHz build has the big fonts and serial port back now.Comment
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Re: ESR meter upgrades
Would it be possible to get it to 32Mhz or is that beyond the abilities of the controller?"The one who says it cannot be done should never interrupt the one who is doing it."Comment
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Re: ESR meter upgrades
the atmel is rated at 20MHz, i know they have been o.c.'d to 40MHz+ but the problem is the slowest part - the ADC is the bit we need to work right!
in theory it could be clocked at 20MHz but the timings in the code are only for 1, 8 & 16MHz right now.
dont ask me why it's got timings for 1MHz.
*maybe it could be o.c.'d to 24MHz wihout problems - that's a nice number (8x3) so probably not to hard to work out the values needed.Last edited by stj; 03-04-2016, 08:07 AM.Comment
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Re: ESR meter upgrades
i emailed the master about the 24MHz idea - we shall see what he says.Comment
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Re: ESR meter upgrades
version 661
some bug fixes, + i added the instrument tuning frequency 432Hz to the generator.
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Re: ESR meter upgrades
Ok cool, would be really useful with a tester for 32Mhz crystals since they are so common on mainboards.
See here for an example
https://www.badcaps.net/forum/showth...415#post539415"The one who says it cannot be done should never interrupt the one who is doing it."Comment
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Re: ESR meter upgrades
for that, use a uni-t ut61E or one of these.
http://www.ebay.co.uk/itm/181573121672
even if you overclock the atmel on the component tester to 24MHz and it works, you wont read crystals higher than about 22MHzComment
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Re: ESR meter upgrades
Could someone tell me if the following item could be used to program one of the atmega168
or atmega328 chips?
http://www.ebay.com/itm/Basic-Starte...-/331675682733
TIAComment
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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...
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