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Recent content by JBOUN3

  1. J

    Is debouncing needed for very simple circuit?

    Re: Is debouncing needed for very simple circuot? The signal source consists of the RC circuit's R1, R2, and C, connected right to the 4060 IC. And the output, also simple, a blinking LED, at a selectable rate from <4Hz to 40 Hz. Maybe there is no bouncing? But only confusion due instead to...
  2. J

    Is debouncing needed for very simple circuit?

    Is debouncing needed for very simple circuot? Hello, and thanks again in advance. I'm building a rather flashing LED circuit, at 4,9,10 and 40 Hz, for optigenetic and meditation thearpy. The first version uses a 4060 IC, and until I can get the 3.932160 crystal that'll get me the 10 and 40...
  3. J

    Burn code into 8050 IC

    Can I connect a USB cable to the RxD and TxD pins of the 8051 to transfer code to the IC? or is there some other fairly straightforward way to do it? Thanks in advance.
  4. J

    How to fine tune frequency from 4060 IC and crystall

    the 32.768 can get me 40.96, dividing by 2^4 and then by 50. I'm searching for a 3.932160 M, which evidently was made for me, giving 40.000, a Baud legacy frequency. No such crystal found here (Philippines) as yet. Parts are very affoardable here, around 35 pesos (<$1.) Meanwhile I'm wiring...
  5. J

    How to fine tune frequency from 4060 IC and crystall

    My goal is to generate 40.00 Hz signal (NB, not MHz, not KHz). The 4060 IC with a 4MHz crystal works nicely and gives 4E6 / 2^14 = 244.14 Hz from 4060 pin 3. Then, dividing by 6 using 7490 IC should give 40.69. The breadboard setup now works very well and delivers a consistent approximately...
  6. J

    Slow but precise blinking LED

    First day here. First breadboard project: LED blinking at precise hertz, 4, 10, and 40. Note, very slow not MHz nor KHz, very slow. The 555 IC version worked rather well but not reliable enough by way of clock-steady. Currently using 4060 IC using RC better, but also not reliable enough...

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