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Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

  • Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

Recent content by 3v0

  1. 3v0

    PICkit3, mplab, mplabx, mplabx ipe, microcontroller, pickit, pickit3

    Sounds like a connection problem. This may help. Maybe maybe not. https://microchipsupport.force.com/s/article/Troubleshooting-Pickit3-errors
  2. 3v0

    Looking back...

    Good to hear. You are not alone. Several young people who started with ETO are now professionals in related fields. The people who have stuck with ETO need to know they have have a difference.
  3. 3v0

    Motor shield on Arduino constantly driving motor1 problem

    Did you try swapping the motor and shield between sides to see if the problem follows the electronics?
  4. 3v0

    Battery charger recommendations needed

    Depends on your expectations. Are you looking for the fastest charge time or maybe one that will be kindest to the cells to prolong life? Is cost a factor? Maybe one with multiple modes is what you're looking for. Good is too vague. Even if you were more specific chances are no one here...
  5. 3v0

    Planning for Embedded Operating System

    Having explained all that what you are presenting to us does not look or feel like an embedded system.
  6. 3v0

    Fade each color of RGB LED's with 555 / 4029

    Need to see the RGB LED data sheet to know.
  7. 3v0

    Fade each color of RGB LED's with 555 / 4029

    This circuit is featured in this Instructables. I am rather rusty at this level so I burned some time looking at this. If one were not using RGB LEDs the reds could be used as 4 serial chains of 2 saving 4 resistors. Pwft. Past that is buying 3 buck boost converters to power the LEDs in...
  8. 3v0

    Fade each color of RGB LED's with 555 / 4029

    You can code. Your doing PCB layout. You know enough about logic to have worked out a circuit with discrete chips. I don't see any reason why you need to use an arduino. The Pic16F1503 with four 10 bit PWM modules is ideal. You could have fun with this. Maybe a Christmas mode that is red...
  9. 3v0

    Can someone identify this before I crack it open would be a shame!

    Most people in their right mind would build a project like that so it can be dismantled for repair or modification. Take your time and figure out how to open it up.
  10. 3v0

    Diamond dust file for side-cutter sharpening

    With most cutting edges one can get more service life with frequent light sharpening. Once they are dull/blunt it is a much more difficult task to restore the edge.
  11. 3v0

    high cost of PCBOARDS

    How many boards do you need. US based OSHPark's two lawyer prototype service is $5 a square inch shipped for 3 copies of the board. 7 to 9 days. Faster if you pay for it. https://docs.oshpark.com/services/two-layer/
  12. 3v0

    Ultrasonic Reverse Parking Sensor not working

    Did you check the grounds. Unscrew and remove a bit of paint under them. The controller or sensor may ground through mounting screws. Poor grounding is a common cause of automotive intermittent failures.
  13. 3v0

    What happens in knowledge transfer in expert system?

    My AI is on the stale side but I did a fair bit with expert systems so I will try to help. "First question is why would knowledge transfer from one part of organization to another." Design engineers need to transfer knowledge regarding their designs to manufacturing. In an expert system...
  14. 3v0

    Pointer or maths more efficient?

    If you enjoy hand optimizing code you may find The International Obfuscated C Code Contest interesting.
  15. 3v0

    Solder Pot Insert

    We are having a bit of a cold spell but it seldom gets cold like it does in the north and midwest. Quite dry but that is not unusual. We had been lucky on the Covid front. That luck seems to have run out recently. I should drop by microcontrollers and see what people are doing. 3v0

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