Disconnect art-project firmware

Device is based on atmega128 microcontroller.

Pinout

• ring: PG1 (~30Khz)
• hang: PB5
• phone: PB6
• debug led: PE2
• boot_mode: PB4
• numeric (nc): PD3
• speaker: PORTC, 8-bit
• AT45DB642x is connected to SPI bus
• speaker and flash power: PE7
• UART
• mode: unknown

samplerate

1Mhz / 4div / 12bits = 20833Hz

Authors

• Vitja Makarov
• Viktor Popovich