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AVR based 4 channel mini logic analyzer

Posted on Friday, February 3rd, 2012 in logic analyzer by DP

This small 4 channel logic analyzer uses a ATmega microcontroller and a Nokia 5110 LCD. It’s able to capture signals only up to about 100Khz, but there is probably some room for improvement.

This mini Logic analyzer is a tool for you to watch on LCD the logic transitions 0 or 1 of a digital data signal. A digital data signal can be found on the output pin of TSOP-1730 Infrared Receiver, on the Transmit and reveive pins of MAX-232 chip (RS-232), on Clock and Data pins of I2C data bus and many more electronic components. This circuit is so far limited upto 100 kHz digital signals but this will be changed with a future firmware update.

Via Electronics-Lab.

This entry was posted on Friday, February 3rd, 2012 at 11:00 am and is filed under logic analyzer. You can follow any responses to this entry through the RSS 2.0 feed. You can skip to the end and leave a response. Pinging is currently not allowed.

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Recent Comments

  • Craig B: Shouldn't the default be 00xxx010? Note that bit 0 appears out of order in the documentation. In that case I think the initial value is...
  • JJM: From the datasheet extract you are showing, the power up status should be 00xxx010, not 000xxx01. Bit numbering is misleading since 'measurement resolution' is apparently...
  • Jan Ciger (@janoc200): Hmm, that could actually explain why the three sensor IMU breakout I have bought a few years ago had all sorts of issues - I...
  • Travis: Is it preset to the windows 3 fingered salute?
  • Glenn: What a cool idea !