delay

  1. Aikju (Isaac)

    How to make my delay relay circuit latch?

    I have bought this Delay Relay module off of amazon. I am using it to make a circuit that will act as a latching relay with a delay for a 12V power source. The circuit should work as follows: There is a switch to activate the relay. When activated, the relay will remain on until the 12V power...
  2. H

    Short Delay for a 3 v LED

    Hello everybody! In a small project I have a LED flash that should light up synchronized with a sound being played from a micro board when a button is pressed. So far I have realized that without a problem. Only thing is, that LED will lighten up instantly, while the sound boards needs half a...
  3. DvirIL

    Designing a Delayed MOSFET switch Circuit for Voltage Transfer on a PCB

    I am seeking guidance for the design of a circuit on a PCB board. The intended function of this circuit is to facilitate the transfer of a 24 V voltage from the input to the output through the utilization of a load switch (SIP32429DN (datasheet), 3 A maximum). This transfer should only occur...
  4. V

    Latching circuit with delay.

    Hello everyone. I have a small problem and need some help. I want to design latching circuit. And turn on my circuit when B1 pressed more than 5 second. And if it is pressed shorter than 5 second, it will not connect.
  5. A

    ON off delay circuit to drive relay

    Hello I need to develop a 100ms delay circuit to energize / de energize the relay. Could any one help me. Relay coil voltage 12V. And relay coil state is controlled by comparator having 0 to 15 level transition.
  6. Doktor Jones

    P-channel mosfet and 555 for power-on delay?

    It's been forever and a day since I've been here, but I'm dipping my toes back into electronics design Anyways, I have a "dumb" device that's connected to a hat on my Raspberry Pi 4. Unfortunately, due to some signaling issues with the dumb device, if it's on when the Pi powers on, the Pi gets...
  7. el_maxx

    Alternative to acceleration estimation with encoder velocity data

    I tried to estimate angular acceleration of a shaft with angular velocity points collected from an incremental encoder but, when I differenciate numerically, errors of estimation became very high due to the delay in capturing flanks (detecting slits). What alternatives do you suggest for my...
  8. NOISEBOB

    controlling the lenght of a signal using an AND gate and a flip-flop?

    my idea is that you send a signal to set the flip-flop to HIGH and send the same signal to an AND gate with a resistor to delay it, before it resets the flip-flop to LOW... and thus one should be able to control the lenght of a signal. would this work? i've had very little luck and...
  9. Z

    How to read TMR0L and TMR0H registers together to create a delay?

    Using PIC16F18446 TMR0 module to create a 1 second delay WITHOUT the use of the interrupts. Here is the program so far: void main(void) { // Oscillator Settings: // HFINTOSC 8 MHz OSCCON1 = 0b01110100; OSCFRQ = 0b00000011; // Data Direction Settings TRISA =...
  10. C

    Install timer delay in pump circuit

    I am looking to install a delay timer in a simple 12v circuit that supplies a well pump (6A) in a garden powered from a solar charged battery. I want the pump to run for 10mins when a circuit is closed on a toggle switch. If the pump is to restart after it has stopped, the toggle will need to...
  11. J

    Solar Guitar™ prototype

    Hello, I am building Solar Guitar™ prototype, an eco-friendly, self-sustained musical instrument solely powered by the Sun: https://patents.google.com/patent/US9905213B2/en 10-15 watt, 2 speaker stereo guitar amplifier with reverb/chorus/delay/overdrive will be installed into the guitar’s body...
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