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Just a quick question. On a couple of the resistor values like R1 and R3 are separated by k. Just so i am clear if it is 4k7 you are wanting a 47k resistor correct?
Oh yes almost forgot wanted to show you the turkey we will eat on Thursday! It brightens your holiday and is very low in calories
When I am at TP11 should I be seeing this?
You may want to send me a schematic of the 555 time circuit. Then I can build it on a separate board. With it being the easier set up. Then I can use it as a guide for my signal output while working on the more complex servo circuit.Your thoughts please!
I read the whole thread.In case this is not obvious, I guess you know about solderless prototyping boards:
Hi,Quote from: definitionofis on December 04, 2009, 08:27:46 AMI read the whole thread.In case this is not obvious, I guess you know about solderless prototyping boards:Well, you obviously missed posts like this one: http://www.societyofrobots.com/robotforum/index.php?topic=9087.msg72956#msg72956As you can see, Neil do build on a solderless board. (Personally, I'm not too happy with solderless boards, as I have seen too many errors caused by them, but they do save time for quickies).
But...Let's break it down a bit.Remove anything but:R1 to R4, C1, D1, Q1 and IC2and test like I described.
Breathing IN pause and Breathing out Pause helps blood pressure
With TP13 to B+, TP11 did not show any voltage even with scope set to 0.5v/div but if I put D4 back in it read just over 1.2 volt. Right or wrong I just wanted to see what was going to happen with D4 in play.
Is this without any input and only with the mentioned components
apart from D4(?), which I'd really like you to tell me more about Perhaps "My forgetter's gettin' better" as the song goes, but I don't recall any D4?
Wonder where the pulses come from as well, as there should be nothing but DC at this stage alone.
Yes only components requested!B+ and GRD applied to TP13 - IC2 has B+ applied to terminal leg 1
In the timimg cap /plus 3v shunt part of the circuit , D4 is a 2.7v zener at least I thought it was
Remove anything but:R1 to R4, C1, D1, Q1 and IC2and test like I described.
No D4 there I don't know whether you refer to something else, because I'm really puzzled, as I have just reviewed each schematic (Please tell me which, if you remember)?Perhaps I have renumbered a schematic after posting it (but it would be very unlike me to change something allready posted without a new name quote]Here is what I am looking at and seeing a D4 schematic below . And your link to it.http://that.homepage.dk/Img/Schem_Ann.gif
Okay now Components are isolated only R1-R4,Q1,C1,D1,IC2 are in circuit.Readings @ Tp11 are 11.5v when TP13 is @ GRD And Milli Volts when Tp13 is @ B+.And there is no pulse
"Question" when Tp13 is not hooked to anything what should the reading @ Tp11 be?I am getting a reading of 11.5v, but at this point I'm not sure of anything
1.TP13 is shaded but is connected to R3. Where did you want that connection to end at? GRD, B+, or does not matter?
2. Rx1, RX2, VRx1 are wired and the center sweep leg on VRx1 shows a range of 4v to 8v. Now that being said, I am cloudy on where the signal is coming from that is being connected to VRx1. and where am I to bring the signal to pin 5 on IC1B from?
Just one question. Is the goal of the project to turn wood chips into electricity? That is, gasify the wood chips, use the gas to run the engine, which turns the generator, which produces electricity?
In case you wonder, here's how the entire circuit could be made with a microcontroller: Microcontroller based Governor
Kinda makes things easier now if I could only code.......lol always something Are you trying to temp me?
I don't want to be confused at this point with the wiring because I am getting 12v signal @Tp11 but no pulse or voltage change when VRx1 is changed. And on Tp12 shows 0 volts and nothing happens when VRx1 is varied. pin 5 on ICB1 has a 4v to 8volts applied depending on VRx1 level and pin 6 has TP11 voltage.I have switched out 3 different LM393 with no luck....................HELP! SOS!
That is correctly wired, but you need to use your 'scope on TP11 and TP12 and then touch the wire on TP13 to B+ to get the pulses. Vary the pot and touch TP13 to B+ again for a new pulse.You are looking for varying delays between the pulses on the two traces.