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Recent content by Elbobbo

  1. E

    LM335 to control 555 timer

    5% = 15 degrees C 95% = 35 degrees C Yeah i am now think of using a LM355 into the circuit. https://www.kitsrus.com/pdf/k166.pdf
  2. E

    LM335 to control 555 timer

    Hey, For my project I am trying to use a LM335Z to control the duty cycle of the output of a 555 timer. So the duty cycle output of the 555 timer is 5 to 95% is this possible? I had tried to use a thermistor to control the 555 timer to get a 5 to 95% duty cycle, with a 50% duty cycle at 25...
  3. E

    Kit 166V2 (Bidirectional DC Motor Speed Controller) Voltage Input.

    Yes i can see that now. I am trying to modify this circuit to respond to a thermistor. Using it to change the DC off set voltage. For temps between 5/10 degrees c to 40/45 degrees c. With it stopped at around 25 degrees c.
  4. E

    Kit 166V2 (Bidirectional DC Motor Speed Controller) Voltage Input.

    Hey I have been looking at Kit 166V2, Bidirectional DC Motor Speed Controller. Found here https://electronics123.net/amazon/datasheet/k166v22.pdf. What I am trying to find is the DC voltage range that it can this circuit handle. Mostly after the highest DC voltage. Would the voltage affect the...
  5. E

    Please Help

    I have been given this: Assume the microprocessor’s ‘instruction cycle’ time is 50 microseconds. That is, calculate the delays based on the machine cycle time specified above. Actual time is not important as the simulator speed may differ from one PC to another. So i am working off...
  6. E

    Please Help

    It seams to cycle from delayb to decfsz dly3 for ever. When i remove the goto delayb from the code, it cycles through all the numbers. delayb: decfsz dly3 goto delayb I have tried experimenting with cblock, but I am getting no where I am using a instruction cycle of 50microseconds
  7. E

    Please Help

    Hey, I chucked your code into MPLAB and ran it, the only thing it looks like it is just cycling the flashing loop. Which is weird because when ran its hex file through Real PIC Simulator it works a treat. I have been trying to muck round with the btfac STATUS, Z step.
  8. E

    Please Help

    This is what I have got from tonight. Till got to get on to that delay..... Time for bed i think almost 2am....
  9. E

    Please Help

    just the one number, 10 characters long
  10. E

    Please Help

    ok, well i am stuffed. I dont have a clue what I am doing.o_O I am trying to get the code to look up one of the ASCII characters at a time, using the combination of STRLEN and ASCLEN. But i just cant get my head around it.
  11. E

    Please Help

    So i guess i can just use the operation clrf portB without the rest, since I actually don't need any inputs.
  12. E

    Please Help

    ; Initialise Port B ................................. BCF STATUS, RP0 ; CLRF PORTB ; Initialize PORTB by clearing output data latches BSF STATUS, RP0 ; Select Bank 1 MOVLW F0 ; Value used to initialize data direction MOVWF...
  13. E

    Please Help

    this is what i got so far
  14. E

    Please Help

    This is my flowchart at the moment, supposed to have YES coming off to the LED flashing and NO to continue down the flowchart
  15. E

    Please Help

    Yes similar to yours as, ; Student number ASCII table .............................. snum addwf PCL,F dt "0061076281" ;Student number
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