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  1. camerart

    Camera Power

    Hi Steve, Centre is +v, and the regulator works fine, thanks. C.
  2. camerart

    Camera leveller

    Hi Nick, I don't understand Hysteresis, but I get what you mean. I'll stick to PICs then. There are 2 X axis, so I can switch between between 'READs' then allow each Pendulum to stop. I can get it easily to get down to 'say' 2 degrees (within the Swing), then I thought I would simply...
  3. camerart

    Camera Power

    Hi steve, I used this: http://www.national.com/ds/LM/LM2576.pdf 3.2 volt fixed output. It needs only 4 components, I had to wind an inductor, and I only had a 1v Shottkey diode, but if I switch off the Screen before switching it on, it should be ok. I haven't connected it to the...
  4. camerart

    Camera Power

    I used a dc to dc fixed voltage chip. I now have 12v in and 3.2v out, but I'm not sure if the Camera plug is alway +v in the centre and -v on the outer ring. does anyone know please?
  5. camerart

    Camera leveller

    Hi, The POT has been removed from a standard Servo, and with a weight on it's spindle corrects level ok, but it is too big. I checked the voltages on the +- and wiper of the POT and it isn't straight forward 0v to 5v with wiper, so I thought it might be too complicated. The Pendulum does...
  6. camerart

    Camera leveller

    Hi, I am limited in my electronics skills. I can hold the Pendulum fully on, fully off, and anywhere in between, according to my Resistance meter, so I thought that there must be some way of putting one side (PWM) or the other side (POT) of a Servo slightly out of balance, the Servo would...
  7. camerart

    Camera leveller

    I don't understand your terminology "may pull the base into level but the other direction will diverge. " I will look into Accelerometers, are they as responsive? I hoped to make a simple analogue circuit if possible. My Opto arrangement gives full on to full off in approx 2 Degrees. I...
  8. camerart

    Camera leveller

    P.S. NickS, I re-read you message. Say the OPTO is on/off, with no in between, and the Servo does switch one way then the other, if you look at my Sketch, you will see that as soon the Servo moves the Camera (and Pendulum) it would reverse, so I imagine it would oscillate 1 degree up/down, but...
  9. camerart

    Camera leveller

    Hi NickS, 'Communications barrier', the story of my life!! Thank you for making the effort. I wander through life inventing things, that are usually difficult to achieve. (This isn't intentional, I can assure you) Having said that I usually get them working, though. The Pendulum does cut...
  10. camerart

    Camera leveller

    As I am in a Library, and only have Paint to draw with, the mechanics of the Pendulum would be difficult for me. Is it possible for you to look at the GP1S096HCZ0F PDF and read the spec regarding the resistance of on and off, then accept that I can slide from one to the other suitably, with my...
  11. camerart

    Camera leveller

    Here is the attachment. As the Camera tilts, and as the Pendulum 'box' is on the Camera, then the Pendulum swings and alters the resistance of the Coupler. I want to use this to turn the Servo, either by changing the PWM side of the Balance or change the POT slider input to the Servo...
  12. camerart

    Camera leveller

    Firstly, I'm sorry, but i have missed out 1/2 of the equation. The POT is the feedback balance for a 150 PWM signal, that I am going to inject on the Servo lead. Ooops. The Pendulum that I have made does indeed cut the beam, and it should be used for Chopping as NickS says, but as it is set up...
  13. camerart

    Camera leveller

    I hope I can explain it ok. I made the Pendulum, which swings into and out of the Opto coupler GP1S096HCZ0F. giving a Min to Max resistance nicely. From this resistance change I need to produce a voltage. The Servos are simple ones that have removable Pots. If a Pendulum is swung from the...
  14. camerart

    Camera leveller

    You have a little. The opto couplers are tiny and so is the Pendulum. It only swings on one axis. As the coupler tilts the Pendulum swings and give a nice swing from Min to Max resistance on the Meter. I want to substitute the Servo Pot (I think is 5K) and put the Coupler in it's place.
  15. camerart

    Camera leveller

    Hi, I am trying to make a Camera leveller, using dismantled Radio control Servos for the action and Opto couplers with Pendulums for the sensing. The Servo Potentiometers are out of the case, and I need to know how to connect the Opto couplers to the Servos to give feedback. The Opto...
  16. camerart

    Camera Power

    Hi, I am trying to make a power supply for my Canon A460 Camera, running from a 12V Battery. Output 3.2V- 2A Has anyone got a circuit please?
  17. camerart

    Starting Crystals

    Hi, I substituted the a 10pF cap for the wire and the XTL started, then I moved the Cap to be parallel with the Cap on that track. It also worked, so I changed the cap, at first ot be 33pF didn't work, then 47pF did. Having also read up a little I decided on 22pf and 100pF Caps 10mH...
  18. camerart

    Starting Crystals

    Ok, Steve, I'll try that tomorrow. Next week I will have access to a capacitance meter, I'll check the wire. Thanks, back Friday.
  19. camerart

    Starting Crystals

    Thank you. I did leave it for a long time, while getting it to start. I will try adding a Capacitor in place of my wire. How do I find the Capacitance of the Oscilloscope? Is it written on it? Cheers, C.
  20. camerart

    Starting Crystals

    Hi all, This is my first time on the site. I sometimes get trouble with Crystals not starting up. I am making a new circuit, modifying a circuit where the Crystals always start up, but on the new circuit it doesn't. The Crystal (Watch type 32766 Hz) is connected to the input of a 4060...
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