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  1. HellasTechn

    UltraSonic Transducer.

    Well its probably the same i suppose. So the transducer and driver circuit are what i need.
  2. HellasTechn

    UltraSonic Transducer.

    I bet the transducer itself runs on lower voltage. The driving circuit is there to turn the 50/60Hz mains supply to 28Khz . If that is the case then i could use the arduino to produce the 28Khz and mosfets to supply the pulsed voltage to the transducer.
  3. HellasTechn

    UltraSonic Transducer.

    Hello everyone, Like i mentioned in my other post here : https://www.electronicspoint.com/forums/threads/creating-a-user-interface-for-arduino.292520/#post-1795054 I want to build my own arduino based fuel injector cleaner. Further more i have seen theese ultrasonic cleaners that work pretty...
  4. HellasTechn

    Creating a user interface for arduino.

    By the way, Thank you. I just try to keep things simple. To be honest i do not kow of any other way of doing things.
  5. HellasTechn

    Creating a user interface for arduino.

    the code has this for example: if (digitalRead (UpKey) == LOW) // I use the internal pullup resistors { Do things an in the end... delay (50); } This is how i debounce the keys. Untested so far...
  6. HellasTechn

    Creating a user interface for arduino.

    Yes, i have already considered all these and i am actually pretty close to finish the code and run the first test :) The LCD will look like this : ---------------------------------------------------------- PLEASE SELECT CLEANING METHOD 1.AUTOMATIC CLEANING <--- 2.MANUAL...
  7. HellasTechn

    Creating a user interface for arduino.

    Hello friends, I was working on my car when i came across a few YouTube videos of DIY fuel injector cleaning methods. Since i was looking for a new project to study i decided to build my own arduino based fuel injector cleaner. I know how to handle my analog/digital inputs/outputs to execute the...
  8. HellasTechn

    Question concerning Arduino and C++

    And vice versa. You are right. Actually i am begining to understand the major differences between procedual programming and object orieted. My doubt is which parts (C++) only concern Computer programming and do not concern micro controller programming so that i can focus on micro controllers.
  9. HellasTechn

    Question concerning Arduino and C++

    Yes i know of these kind of spray. I use it some times. It is really nice :) Thanks :). Tinning was done with the solder iron, thats why it looks uneven but the traces are all solid :)
  10. HellasTechn

    Question concerning Arduino and C++

    Well like in post 1, i dont have a specific question just general advices if someone knew which parts (that apply to pc's) i should not pay too much attention.
  11. HellasTechn

    I2C copper trace lost continuity

    Now that you mentioned it does remind me of some short of over-etched pcb. My respect to Sir 73's de Edd.
  12. HellasTechn

    I2C copper trace lost continuity

    Are you sure you scratched the PCB after the line went open ? It sure looks that the line was scratched open.
  13. HellasTechn

    Question concerning Arduino and C++

    Neat design ! Congrats. I have a few pics of my own project to share with you. Still i would like to learn the basics of C++ to be able to put them to use in the future. Pic 1 and 2 are the PCB's Pic 3 is an smd chip being tested by me soldered on a custom adapter board for the breadboard. Pic...
  14. HellasTechn

    Question concerning Arduino and C++

    I have already purchased an uno and a mega board (both clones) i love the mega board because it also comes in small form factor plus it has bigger memmory and 4 UART's. I have been working on a small project of mine that involves GPS receiver where the mega board reads the serial stream from...
  15. HellasTechn

    Question concerning Arduino and C++

    The last lesson i watched today was about (classes and arrays) also (classes and const) not to mention the last one that was about classes, arrays and pointers combined... Total brain burnout for me :confused: And im not even close to hearning inheritance.
  16. HellasTechn

    Question concerning Arduino and C++

    Yes, that's exactly my point Harald. Though in my opinion finding tutorials that are easy to understand by a complete newbie is not very easy. Thats why i think it would be better to finish the lessons ive downloaded first.
  17. HellasTechn

    Question concerning Arduino and C++

    Actually i had no idea that one can program an arduino without C or C++. Could you explain more please ?
  18. HellasTechn

    Question concerning Arduino and C++

    Hello friends. I am new to programing and microcontrollers in general. I had no knowledge of C language until I recently found some very useful YouTube lessons about C language and how to build a small program on PC with it. After watching the lessons i managed to understand the very basic...
  19. HellasTechn

    Low noise power supply - linear?

    My opinion on this would be to use a linear PSU. The classic transformer with full wave rectifier and smoothing capacitor. Why would you use SMPS for such low currents? Unless if you wish to make it tiny in size.
  20. HellasTechn

    Electronic door lock is safe?

    It is always a good idea to be able to operate things manually. Can you figure out a way to manually bypass the electronic lock from inside? For example to attatch some small mechanism that will allow you to pull open the doors latch in case of emergency or failure while use the electronic lock...
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