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  1. Minder

    Questions about UART communication

    If this is standard RS232 then the common on TX & RX is connected. Only if the communication is differential is the commons not connected. M.
  2. Minder

    Help, Using Arduino to high current 12volts inputs and output

    I using a μproc with a 5v out then a logic level mosfet is the easier choice. M.
  3. Minder

    16 Bit LCD programming

    You can use 4bit or 8bit addressing, 4 bit saves on I/O. See http://www.winpicprog.co.uk/pic_tutorial.htm Somewhere someone on another site has converted Nigels code to C also. M.
  4. Minder

    PIC programming

    Quite the leap 16f628 to LPC2148! M.
  5. Minder

    I need a PCB designed

    These were one of the cheapest and good quality, [email protected] Itead Studio. China . https://www.itead.cc/open-pcb/pcb-prototyping.html M.
  6. Minder

    Help, Using Arduino to high current 12volts inputs and output

    This gives an idea what to use in the base of the Mosfet. See Q2 ignore the rest.. D2 R2 R4. M.
  7. Minder

    Variable capacitor

    The other way is to make the inductor variable, move the core through the coil for tuning and use a fixed cap. Older car radios used this method, btw. M.
  8. Minder

    Needing a sealing resin

    I usually use conformal coating, at least you have a chance to repair it if it fails later, there is a solvent for removal. Potting usually result in destruction if you need to replace a part later. M.
  9. Minder

    Power supply

    Those power supplies take either N.A. 240v and ground ( L1-L2 & No neutral) or L1 and N 120v and ground. They are labeled L & N as some countries use a 240v and neutral, unlike N.A. where the 240v is a 120-0-120 1 phase centre tapped supply and the CT is neutral. They generally have a selector...
  10. Minder

    latching pushbutton help

    Ebay PWM and a 4 posn rotary for 4 pre set speeds. or http://www.discovercircuits.com/DJ-Circuits/simplepwm2.htm M.
  11. Minder

    latching pushbutton help

    The $5.00 PWM controller on ebay could control it. M.
  12. Minder

    Hi and pic question!

    There is also Tutorials at Nigel Goodwin Tutorial site to get started, I buy my strip board from these guys http://www.futurlec.com/ProtoBoards.shtml If you do not intend going to the more advanced Pic's, the Pickit 2 has the advantage of a stand alone programming as well as Signal generator...
  13. Minder

    Federal Pioneer Enclosed Switch 86311

    This is a bar for any neutrals that may be used, these are not switched. M.
  14. Minder

    Zener Diode

    This is the reverse voltage limit, obviously when forward biased there is only a small voltage across the diode as it is conducting at this point. M.
  15. Minder

    latching pushbutton help

    That is a gear motor and is 235rpm, 4mm shaft with 10Ncm torque, Have you measure or estimated the amount of torque you need? M.
  16. Minder

    Help, Using Arduino to high current 12volts inputs and output

    Low power is fine. M.
  17. Minder

    Help, Using Arduino to high current 12volts inputs and output

    Input is to Arduino , signal source is wherever 15v is comming from. M.
  18. Minder

    Help, Using Arduino to high current 12volts inputs and output

    Search Digikey logic gate mosfets, this one is $1.50. http://www.irf.com/product-info/datasheets/data/irlr024npbf.pdf The IRL630 shows stock when I search? M.
  19. Minder

    Help, Using Arduino to high current 12volts inputs and output

    The IRL630 is good for 6amps. M.
  20. Minder

    motor reverse

    If you have a S.M. motor there you need to state the motor technology, Perm. Magnet field or series wound field. M.
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