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i2c-tiny-sniffer

i2c-tiny-sniffer is a simple sniffer of I2C bus based on ATtiny2313A MCU.

  • I2C speed up to 400Kbps (in theory may be increased to 1Mbps @20MHz @5VDD)
  • Output data in ASCII code from USART (start: #, stop: !) @1Mbps 7N1 (1/8 of MCU clock frequency)
  • Pins: PB5: I2C SDA, PB7: I2C SCL, PD1: USART TX

Connections

Project for AtmelStudio 7.0 IDE.