Mini Logic analyzer is ATmega8-based electronics tool that can be used to watch and analyze logic transitions 0 or 1 of a digital data signal. It comes with Nokia 3310/5110 LCD to display signal and it has 4 channel inputs. A digital data signal can be found on the output pin of TSOP-1730 Infrared Receiver, on the Transmit and receive pins of MAX-232 chip (RS-232), on Clock and Data pins of I2C data bus and many more electronic components. This circuit supports capturing for up to 400 kHz digital signals.
The project uses 4.8V DC from 4×1.2V rechargeable batteries. Firmware is written using AVR GNU and is compiled with AvrStudio 4 and AVRstudio-5 (new version). This useful analyzer tool built by Vassilis Serasidis.
Project Firmware, Schematic and Documentation