ساخت این فلزیاب جرم است / How to make the simplest metal detector with IC 555

How to make the simplest metal detector with IC 555 you can follow me through the following link and also support\ ===================================================== who am i ========================== Hello I am Arya. I invite you to see the experiments, crafts, technical and physical entertainment of Pajem Thank you for following my channel. this playlist is useful for you ===========================================    • الکترونیک و مدار | electronics and ci...   you can follow me at the following addresses ===================================== =============================== instageram: https://www.instagram.com/technical.physical telegran: https://t.me/technicalphysical #diy #soldering #how