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Recent content by Englewood

  1. E

    Shematic to PCB help.

    Hello, I have designed a small circuit using Proteus and the simulation works fine. I built the circuit on breadboard and worked great, was chuffed. I've decided I want to make a better PCB and not use breadboard, ive used design spark to layout my PCB and had a few made but there is always...
  2. E

    [SOLVED] 555 Timer Monostable 5V to 3V !!!!!!!!!!

    Thanks for the reply's. I have used a TLC555IP works perfect :-).
  3. E

    [SOLVED] 555 Timer Monostable 5V to 3V !!!!!!!!!!

    Sorry, I think I just found the problem. The minimum voltage is 4.5V so NO.
  4. E

    [SOLVED] 555 Timer Monostable 5V to 3V !!!!!!!!!!

    555 Timer Monostable 5V to 3V ! Hello All. I have made a Monostable 555 circuit that runs on 5V and works fine, lights up my laser. I need to run the circuit from a 3V battery CR2032, when I use 3V the laser doesn't light up. Should I use a transistor? Is the 555 timer not cable of...
  5. E

    Small Bluetooth module for wrist

    Hello, I'm looking for a 5-10 metre Bluetooth range device. The device has too be small enough to be used with a wristband like a Fit Watch ect ect. Looking at connecting to both ISO/Android type of App. I'm looking to connect an output from the device to a vibrating mechanism. I'm a novice...
  6. E

    Small bluetooth Chip

    Hi all, I'm looking for a small Bluetooth chip with a logic out or a signal out, so if a signal is received or not received the output turns on a small vibrating device. Is there a Bluetooth chip out there :-S, I've looked but I'm struggling a little, cheers. Needs to be small about 10mm/20mm
  7. E

    Opto Switch Reversing

    This was my thinking too as I was only getting 7.54ma from the output enough to power and LED but not enough to power the motor. I tried a BC108 trans but that didn't work, I do have a much more powerful transistor to try. I don't understand why it shorts out though. I just put the output of...
  8. E

    Opto Switch Reversing

    I have got a Opto switch, which I want to turn a motor off and on. So when the switch is active the motor is on. When the switch is deactive the motor is off. I have this Opto switch **broken link removed** The switch keeps shorting out when I connect the output to my motor, one end of the...
  9. E

    Opto Switch Reversing

    Cheers, That's what I'm trying to do, just using it as a slotted switch
  10. E

    Opto Switch Reversing

    Thanks I did realise this yesterday, I was shorting out across the board. Now I have it setting across the board but still not joy. I think I need to work out the correct resistors, I've used 3k and 330 ohms like someone said but when I go direct to the output of the resistor I get no current out
  11. E

    Opto Switch Reversing

    I just cant to seem to get this to work :-(
  12. E

    Opto Switch Reversing

    Cheers Brad, ill give it a try :-) - - - Updated - - - Ive tried but still no output
  13. E

    Opto Switch Reversing

    Need some help, wiring up my OPTO cant seem to get it to work. I'm using 5v? Ive got this switch https://eu.mouser.com/ProductDetail/Optek-TT-Electronics/OPB620/?qs=MYMjFsmMg9YcB0fPJ0vWRQ%3D%3D
  14. E

    Opto Switch Reversing

    I'll just use a NOT IC then
  15. E

    Opto Switch Reversing

    Hi folks, Can you reverse a opto switch?, So when the switch is broken it turns a light on and when the switch is unbroken it stays off? :-s
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