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Private Message (PM)

February 22, 2016, 4:38 pm
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How do I PM somebody. I click on the person username and all I see is start a conversation which I think is not the same thing.

Thanks
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Water level conductivity sensor in soda machines

February 22, 2016, 5:51 pm
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Hello guys,


I'd like to understand how conductivity sensors work in general and hopefully as it applies to soda machines.
I've encountered two versions with different controllers but I'm sure the principal is the same.


Version 1:
Two stainless steel probes are inserted into the top of the tank (Carbonater) and both are isolated except about 2 centimeters at end of each probe inside the tank. The probes also have a connection on the...

Water level conductivity sensor in soda machines
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Looking for a kit

February 22, 2016, 5:52 pm
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Im looking for a kit, sort of like this one (the DIY gaming kit), but with a PCB. I know Ive seen them around the web somewhere but I cant locate one. Would be great if I could locate one that plays just tetris and is in Kit form.
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How to make 31 Wireless LED Indicator with Pushbutton

February 22, 2016, 6:43 pm
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Hello guys. Can someone help me to build a project regarding this. I have three options: (a) Wired (b) Wireless (c) IC Programming

I assume the wireless is the best, I suppose if I use Wireless Doorbell, I can reduce the use of too much wiring. And to make it an LED indicator, I would just have to replace the buzzer/or chime of the doorbell into LED. Is it possible? But I presume, it could possibly have frequency interruptions because I will have 31 doorbells in 1 room. Is changing the dip...

How to make 31 Wireless LED Indicator with Pushbutton
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Gaming headset soundcard repair question

February 22, 2016, 7:37 pm
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So the past couple of weeks my usb headset with a sound card (hyper X cloud ll) has been dropping in and out depending on how the wire sits, recently it has gotten so bad that I decided if I could locate the issue, with great struggle I finally cracked open the sound card to reveal the circuits inside, I noticed the red wire was bent with a slight tear in it, not being a expert what so ever, would this be the cause of my problem and how would I go about fixing a issue like this, picture...

Gaming headset soundcard repair question
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lets have awards

February 22, 2016, 9:30 pm
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Why don't we just have some awards program every year like say:
1) best moderator of the year
2)most helpful moderator of the year
3)return of the year
4)most knowledgeable guy of the year
5)funniest guy of the year and etc etc etc..............like this:)
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WE DISGRACED

February 22, 2016, 10:19 pm
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Recently I was reading an article in "Times Of India" where an American girl spoke about why American girls stop chatting immediately when they find that the guy on the other side is Indian.She says that we are really naive about western culture and always ask questions about others private and personal life and have a perverted mind.she even calls us a racist pig at the end.Is it so????what's your take???:(:(:(:(
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what is the function of an oscillator within an inverter circuit?

February 22, 2016, 10:52 pm
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This may seem like a stupid question, I thought I knew the answer to this but I think there is more than one answer to it and the question is to "clearly explain the function of an oscillator within an inverter circuit"
My initial thought was that it provides commutation to switch on and off switches alternatively like thyristors for example.
However I know that it's possible to create a true sinewave using positive feedback although this is very difficult so I know there is a big...

what is the function of an oscillator within an inverter circuit?
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alloy needed

February 22, 2016, 11:56 pm
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Does anyone know any alloy of titanium that can withstand temperatures from plasma as in this work no magnetic field containment can be used?:banghead:
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Want a good laugh?

February 23, 2016, 3:07 pm
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O.K. Got a joke.

There was a national poem contest being held and there were two finalists left. The first finalist was a college professor from California. The second finalist was an old ranch hand from Texas. You get 3 minutes to come up with a poem and the poem must end with the word "Timbuktu". They flipped a coin and the professor won the toss. The professor chose to go first and he starts his poem right away. "Miles and miles of sand, riding on a caravan. Camels two by two,...

Want a good laugh?
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SIM800L+Arduino (serial communications carrion return & lew line puzzling)

February 23, 2016, 3:16 pm
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Ok, so the problem now is this:
I have sim800L module, that i've succeded to get working, was quite chore to program....but now I'm trying to implment it to arduino/teensy!
And in case someone wonders, this is not part of any project yet, just learning how to use it :).
I have code that I'm planning to use as hard-base, but I think carrion return and/or newline causes trouble, my current code is as like this:
AT-command gives ok as return, and it should light up led, just a test skecth for...

SIM800L+Arduino (serial communications carrion return & lew line puzzling)
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Didcot power station explosion

February 23, 2016, 4:48 pm
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Didcot power station has had a massive explosion! I went around there three years ago on a school trip, alot of it has been blown off the face of the earth
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Peavey Deca 1200 Digital Amp Repair Class D amplifier

February 23, 2016, 5:12 pm
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OK im new to this site...I would like some help if anyone wants to chime in,.I have fixed a few amps in my time but this is a monster...
Status...
it is a 600watt per channel stereo class d amp...A channel is working ...B tries to work but is distorted. Power supplys check out ok.If I disable the ddt (peaveys protection compression circuit)and test across dummy 8 ohm load I can see distorted positive sine...I recently read up on class d on how they pulse width modulate the signal with high...

Peavey Deca 1200 Digital Amp Repair Class D amplifier
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Gone on vacation

February 23, 2016, 5:21 pm
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I will be absent from this forum for up to two weeks starting tonight while visiting a friend.

Ratch
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Sharing video / audio on multiple TVs?

February 23, 2016, 5:37 pm
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I currently live in a two story townhouse where my office is directly above the living room. I have a media center PC in the office with an HDMI splitter. One side goes to the TV in the office. The other side goes to the TV in the living room. This allows we to move from room to room watching the same content.

I am moving to a ranch house (one level house). The living room PC will be too far from the office to run HDMI cables. I looked at wireless HDMI but it looks like their distance is...

Sharing video / audio on multiple TVs?
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Cheap camera stepper motors faulty

February 23, 2016, 6:08 pm
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I got a pack of 10 micro stepper motors off ebay a while back, they were surplus camera focus motors.

Eventually I had a use for one, in a aircraft instrument I'm adapting, so I pulled one out wired it up to a microcontroller running a microstep routine, worked fine, pulled another out, dead and another dead, and another dead, 3 out of the 10 work.
I'm getting open circuit on one of the wingdings, not always the same one.
So I'm thinking that these were probably a scrapped batch that fell...

Cheap camera stepper motors faulty
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Funny Images Thread!

February 23, 2016, 6:28 pm
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Post Images which seems to be funny to you.

[​IMG]
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Hserout speed

February 23, 2016, 8:06 pm
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Hi,

I'm using Oshonsoft and 18F PICs. When simulating a program, I use the Hserout screen and watch as the code is slowly crunched. Sometime back I was told how to speed this up, can someone remind me how, please?

Camerart.
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brushed dc motor driver

February 23, 2016, 8:07 pm
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I was looking at using this fet "AUIRFS8409-7P" for a 55lbs thrust trolling motor driver. it will be pwm'd and driven from a pic. I had used a BTN8962TA half bridge driven straight from the ccp1 pin, which worked great up to half speed, I was over the current limit on that fet and could only run at top speed for a few seconds until it shut down, now my question is would I need a fet driver for this "beefier" Nfet? and if so, what might be a good match for...

brushed dc motor driver
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NPN Sensor used as dry contact for Sensing device?

February 23, 2016, 8:53 pm
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