Malysh FM

[Altair]

... I think a correct value could be: 3F93h, but I haven't try yet!

[bernte_one]

you dont Need to set any fuses it is not an atmel chip
it is a microchip pic Controller use the pickit3 to load the hex file on chip
in the Setting activate target power 5v direct from programmer

[Altair]

you dont Need to set any fuses it is not an atmel chip
it is a microchip pic Controller use the pickit3 to load the hex file on chip
in the Setting activate target power 5v direct from programmer

Bernte_one, thank for your reply!
Yes, already seen; I do not have the pickit3 but just an old parallel programmer (Picall).
Chips programmed in this way do not seem OK: No sound at startup and LEDs always flickering. I have to investigate, perhaps some incompatibility of Malysh's hexadecimal files format with the programmer.

[ionut_mtb]

I finished malysh fm v2 like in schematic. i did not mount the led's and cap/diode from red circle. pic is 12F629. (i don't find hex for 12f675 fm V2 ) When i connect power it beeps once, when target is approached to the coil i can hear only one click and then nothing, no more click. After less than one minute it's making another beep, like autocalibration. Calibration buton works also. I think the PIC programmer is ok.
I tried also 16Mhz/20Mhz quartz. Two types of coils (both 1400uh-1500uh) diam 5cm 0.3mm wire and 0.15mm (not shielded).
At pin 5 i have this oscilation, my calculation is 19khz.

[gaby_sult]

That's what I did.
Try and respect the values and will definitely work.
Malysh fm v2.rar

here and the proof:
https://www.youtube.com/watch?v=GSC9Puvndog


Ceau...

[ionut_mtb]

Thanks for reply, i know your video already, i just wanted to make FM V2, not FM2 V2, because of limited space inside housing i choose. Maybe i need to make FM2 V2.
Is it ferite core n the coil? I've heard that with ferite will act like a compass.

[gaby_sult]

I used a ready made coil. He was on a ferrite core and we recovered from a old TV. It has a value of 3mH.

[kt315]

use AMS1117-3.3 instead LM317 (delete R1 and R2).
in package SOT-223

[Eddy71]

I used a ready made coil. He was on a ferrite core and we recovered from a old TV. It has a value of 3mH.
[ATTACH]41706[/ATTACH]

The coil on the ferrite rod is very sensitive to the magnetic field of the earth

[pustareka]

The coil on the ferrite rod is very sensitive to the magnetic field of the earth

skolko cuvstvitelen? kak ft100?

L1=1.5mH
C5=?
Castot=?

[ivconic]

Not bad at all.
Hat down to author.

[dbanner]

Very good.

[blobber]

and in use...
https://youtu.be/lIhCbY1SLVA

[ivconic]

and in use...
https://youtu.be/lIhCbY1SLVA

Einfach schön!




P.S.

[blobber]

Zvuči dobro.