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  1. Minder

    Latching relays in a control circuit

    I would recomend the Vero strip board, there is a free design/layout pgm VeeCAD.
  2. Minder

    Latching relays in a control circuit

    This is where the Smart Relay can come in, as it is programmed in relay logic, see the tutoriols out there, the zelio video can show it. "Program Zelio Smart Relay Function A Timer in Ladder Logic"
  3. Minder

    Latching relays in a control circuit

    I like Schnieder but there are a few choices out there, just compare the specs and functions
  4. Minder

    Latching relays in a control circuit

    Look into a SmartRelay there are several makes, they are a 'Poor mans PLC' !;)
  5. Minder

    Ignition coil...

    There is also the later version, used at present on modern auto's, the primary is isolated from the secondary, know as waste spark versions.
  6. Minder

    Trying to identify two components help.

    Without numbers it is difficult to assist, they appear to be mosfets maybe? may have to do a little reverse-engineering!
  7. Minder

    Power factor

    Not in detail, but in a simplistic way, one example would be where in a metred AC source where the components of a circuit are causing a phase shift between the peak AC voltage and the current, such as in a highly inductive load, you would be essentially be paying for energy that you were not...
  8. Minder

    Arduino + A4988 Stepper Motor Driver Help

    Are you using one of the A4988 versions mounted to a carrier ? Have you set the motor current limit? I tend to use the carrier mounted DRV8825 for this.
  9. Minder

    What is your honest take on the "Stamp-Sized" Dev Board trend? (Xiao, QT Py, etc

    Not really qualifies as "Stamp Size" but I have recently started using a Pi5 for compact Hi-tech project, uses Python to program, and quite the following forums out there!. https://forums.raspberrypi.com/ My previous projects were MicroChip based using assembly. So quite the change.
  10. Minder

    Connector options for low-voltage power wiring?

    I have use the RC type XT60, very good secure connection and cheap.
  11. Minder

    Unknown pcb switch

    Sorry not really familiar with those .
  12. Minder

    My geared stepper motor is getting noisier after prolonged use. How should I maintain it?

    Is it mechanical noise or electrical switching noise, steppers can be noisy, compared to DC or BLDC.
  13. Minder

    Which MCU do you prefer — ESP32 / STM32 / RP2040 / Arduino?

    @maker_o9scok4l_1743564570 For a very long while I have used Picmicro products using assembly. But recently have developed an interest in the Raspberry Pi v5. might be an avenue to explore, especially if one is a beginner as you claim to be.
  14. Minder

    PCB Manufacturing — Complete Beginner’s Guide

    1 A gerber file 2 What it says Obtain the free program - Kicad. This produces every thing from schematic to Gerber. For PCBway
  15. Minder

    Diagnosing my failed CNC controller

    This is the problem with many industrial systems, they keep the info proprietary. ! What is the nature of the drives ? Do you know? AC,DC motors? Drive signal? It could turn out to retrofit with one of the PC based or other systems.!
  16. Minder

    Anyone Using NEMA 23 Stepper Motors in Robotic Applications?

    One, steppers should always be ran at the rated current. If going closed loop, you may as well go with servo's!
  17. Minder

    Just Curious about PCB's

    It could well be caused by high current-carrying traces, This is common with large household appliances. Where a PCT relay contact carries high current. To effect a repair, I replace the foil with a piece of copper solder dry-wick
  18. Minder

    Another set of eyes to check my kicad schematic

    You may have to apply a PWR flag for the GND also for the 3.3v.
  19. Minder

    Limiting power inrush on spot welder

    Most of the spot welders I have worked on have been simple mains-transformer constructed, with a single-turn secondary . There has been the odd capacitive discharge type, I must admit. The disadvantage with the latter is the weld length duration cannot be controlled.
  20. Minder

    Limiting power inrush on spot welder

    If this is a simple transformer type resistance welder, then you will not be able to reduce the inrush, this is the whole concept of the type of welder, the secondary is usually many thousands of amps, even for fairly small one,
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