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Disclaimer: this is schoolwork, so I'm not sure if it's in the right segment.
I need to write a frequency counter for a PIC16F870 microcontroller that can read frequencies from 0 to 255hz (8 bit, at least they had some mercy there...). This is for a school project where we have to build a...
Thanks for the replies guys. Brad, does the 22k resistor not seriously decrease the amplification factor? I have a very sturdy aloy bar to work with, and a tiny 350 ohm straingage. Chuckey mentioned that with a very small stretch of, say .1mm, you'll need a lot of aplification to get a reading...
Hi,
I'm working on a project where I have to get a weight readout from a straingage attached to an aluminium box profile. The mechanical part of the assignment is done, but they're realy letting us hanging with the electronics part.
We were handed this circuit scematic (after specifically...
Is there anyway of finding this out? The resistor was part of a fluorenscent light. There are 4 leads, 2 going to eacht tombstone where the light bar rests in. One side has a high AC voltage (higher than my multimetre can take so I only had it on for an instant) while the other end is dead (no...
I thought these things had to be read starting from the isolated band... oh well, so 1 Ohm then. That makes this thing even more suspect. It's from a broken TL armature and when it was still solderd on the board, it read something like 14Mohms. After desoldering it I couldn't get a reading at all.
Can anyone help me identify this resistor? It's not a weird one, I just **** at electronics. If read from the isolated brown band down, I get 180 ohms, asuming that silver band isn't gray. Can anyone confirm?
My welder broke a couple of days ago. It's a Bimax 132. The wirefeeder is dead. I still measure 20.8 volts inside the MIG torch and the switch on the torch is fine too but there's no voltage reaching the wirefeeder motor. The main power leads inside the welder still read 20 volts so that's okay...
Thank you for your help...Thing is, I'm realy not into electronics, that circuit scematic is way above my skill level. Sorry to keep asking like this...
Thank you for your reply. Googling "series pass voltage regulator" doesn't bring too many relevant results. I'm Dutch so I don't realy know the Dutch translation. I usually end up with something like this **broken link removed** which is just one component, usually rated at 1 or 1.5 amps. Can...
Hello,
I'm working on a vtol project and I want to use a brandless 12v 2l/min @2bar intank automotive fuel pump for my fuel delivery system. I need to be able to regulate the fuelflow and there's 2 ways of doing this: using a bunch of fittings and ballvalves, and servo's to operate them, or a...
Hello everyone
me and my friend are working on a mk160 circuit boar. it's a remote controll through cellular phone. the board is all but done but we're stuck on 2 capacitors and a ldr.
there's no markings on the capacitors or the ldr to determine polarity. How can I do this without testing...
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