Maker Pro
Login Join Maker Pro
Or sign in with

Menu

Connect With Us

Network

Search results

  1. S

    Latching circuit problem

    Just watched the Youtube video.... my God, that man has an annoying voice Think I will go for the easier first circuit (3.00)... with a couple of reed switches. Thanks guys
  2. S

    Latching circuit problem

    Thanks guys. Been away on site all week and only just got internet. Will go and view the video later Steve
  3. S

    Latching circuit problem

    That will be me wading into unknown territory then..... P-channel who what? Time to google
  4. S

    Latching circuit problem

    I know this is a different idea from the original (one button now instead of two), but that actually makes life easier. The load is going to be receiver, 4x servos and an electronic speed controller. The motors run off a different battery. 5A should cover that I think. I was thinking of a...
  5. S

    Latching circuit problem

    I found this circuit - should do the trick? Am I right in thinking a CD4013 is the CMOS version?
  6. S

    Latching circuit problem

    OK. The reason for keeping the drain to zero (if I could have), is because its controlling the receiver in a model submarine. The battery pack and receiver are in a watertight tube (with a small vent while charging the batteries). Switching the sub on and off was to be accomplished by using...
  7. S

    Latching circuit problem

    No - could be a normal relay. Size is an issue (its a radio controlled model) and therefore I thought a reed relay would suit due to size and current draw. As for the 4013 idea... I just thought there might have been a way for powering the circuit with the 'on' button, and then its own output...
  8. S

    Latching circuit problem

    Ah ha... Been there! Maplin do twin coil relays.... but they are 12v coil. I am running off 6v - hence the reed relays. I was thinking that there would be a circuit - perhaps involving a CMOS 555 or something... that energises when you press the button and latches an output. Then the 'off'...
  9. S

    Latching circuit problem

    Checked Maplins... all their reed relays are SPST only. I expect Farnell or someone may have some SPDT relays, but its a pain having to order just a single reed relay! Minimum orders and all that. Just thought there would be another way - latching relays seems a bit crude.
  10. S

    Latching circuit problem

    Hi all A I am not the greatest circuit designer.... can anyone help I need a circuit that wll latch on at the press of a button, and then switch off at the press of second button. There are a few 'rules' however.... The buttons are actually reed switches. So they are only NO contacts...
  11. S

    Car lead acid charger

    Hi Dave Not sure, its not going to be much! I believe its fused at 15A, but the socket certainly could not provide that. If I have to, I can always run a new supply to the boot from the battery
  12. S

    Car lead acid charger

    Thanks for all your help guys, I am working on the system now
  13. S

    Car lead acid charger

    Hi all I am fitting a mini DVR in my car for security. I want to run it off its own 12v lead acid battery, so that when parked, it doesnt drain the main car battery. Does anyone have a good lead acid battery charger circuit that will run off the 12v cig lighter outlet in the boot of my car? I...
  14. S

    Car sat/nav programming

    Mmm.. The user interface on this sat/nav is just appalling. Clearly never tested while actually driving, It draws your attention away from the road far more than it needs to just due to simple bad design and programming. Take Ipod track selection. You touch the screen and flick it up or down...
  15. S

    Car sat/nav programming

    Yea, that is along the line of what I thought too. Not sure what would be involved in hacking one of these units. I just find so many things wrong with the programming, I would really like to have a go at altering it.
  16. S

    Car sat/nav programming

    Hi all. Its a bit of an odd question... with many answers I would imagine. I have a fairly new Pioneer Sat/nav system in my car and I wondered what these units are programmed with? They must have a processor inside with the required program/s loaded. What language do you think they would...
Top