Testing of Clone PI AVR metal detector

Some years ago a have started building Clone PI AVR. Made a PCB, soldered all the components and … and never found time to finish it until today. Well I haven’t finished it yet but at lest gave it a first test run. For the screen and buttons i have re-purposed some front panel of some old router. Now i see that i will have to put it in to another box for better mounting on the metal detector itself but this time it was good enough for test run. For Atmega programming I used Mini Pro TL866 programmer I have bought while ago – works like a charm. You can see some photos and video on work in progress.

20170216_160601
Programming Atmega8

20170217_000157.jpg

Circuit of Clopne PI AVR:

CPI_AVR_SCH.gif

CPI_AVR_VOLTS.gif

CPI_PRG_181_AVR file for burning Atmega 8 and PCB Sprint layout – Clone_PI_M_AVR.

Atmega8 fuses
Atmega8 fuses
Flashed Atmega8
Flashed Atmega8

11 Comments

  1. What is the capacitance of the electrolytic capacitor that is connected to the pins
    7, 20 and 21 of the atmega 8 that on the R14 side?
    send me a nice whatsapp
    +55 (61) 98254-8513

  2. What is the capacitance of the electrolytic capacitor that is connected to the pins
    7, 20 and 21 of the atmega 8 that on the R14 side?
    send me a nice whatsapp
    +55 (61) 98254-8513
    Google Tradutor

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