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README.md

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AI-on-the-edge-device

This is an example of Artificial Intelligence (AI) calculations on a very cheap hardware.

Details on function, installation and configuration can be found on the Wiki Page

A 3d-printable housing can be found here: https://www.thingiverse.com/thing:4573481

Donate

If you would like to support the developer with a cup of coffee you can do that via Paypal.

Change log

Known Issues

  • slow response of web server during picture analysis
  • spontaneous reboots (mostly due to html access during image processing) - self recovery implemented

General remark: Beside the firmware.bin, typically also the content of /html needs to be updated!

6.6.1 Image Processing in Memory - (2021-04-05)
  • NEW 6.6.1: failed SD card initialization indicated by fast blinking LED at startup
  • Improved SD-card handling (increase compatibility with more type of cards)
6.5.0 Image Processing in Memory - (2021-03-25)
  • Upgrade digital CNN to v8.2.0 (added new type of digits)
  • Supporting alignment structures in ROI definition
  • Bug fixing: definition of hostname in config.ini
6.4.0 Image Processing in Memory - (2021-03-20)
  • Additional alignment marks for settings the ROIs (analog and digit)
  • Upgrade analog CNN to v7.0.0 (added new type of pointer)
6.3.1 Image Processing in Memory - (2021-03-16)
  • NEW: 6.3.1: bug fixing in initial edit reference image and config.ini (Spelling error in InitialRotate)
  • Initial setup mode: bug fixing, error correction
  • Bug-fixing
6.2.2 Image Processing in Memory - (2021-03-10)
  • NEW 6.2.2: bug fixing
  • NEW 6.2.1: Changed brightness and contrast to default if not enabled (resolves to bright images)
  • Determination of fixed illumination settings during startup - speed up of 5s in each run
  • Update digital CNN to v8.1.1 (additional digital images trained)

  • Extended error message in MQTT error message

  • Image brightness is now adjustable

  • Bug fixing: minor topics

6.1.0 Image Processing in Memory - (2021-01-20)
  • Disabling of analog / digital counters in configuration
  • Improved Alignment Algorithm (AlignmentAlgo = Default, Accurate , Fast)
  • Analog counters: ExtendedResolution (last digit is extended by sub comma value of CNN)
  • config.ini: additional parameter hostname (additional to wlan.ini)
  • Switching of GPIO12/13 via http-interface: /GPIO?GPIO=12&Status=high/low
  • Bug fixing: html configuration page, wlan password ("=" now possible)
6.0.0 Image Processing in Memory - (2021-01-02)

  • Major change: image processing fully in memory - no need of SD card buffer anymore

    • Need to limit camera resolution to VGA (due to memory limits)

  • MQTT: Last Will Testament (LWT) implemented: "connection lost" in case of connection lost to TopicError

  • Disabled CheckDigitIncreaseConsistency in default configuration - must now be explicit enabled if needed

  • Update digital CNN to v7.2.1 (additional digital images trained)

  • Setting of arbitrary time server in config.ini

  • Option for fixed IP-, DNS-Settings in wlan.ini

  • Increased stability (internal image and camera handling)

  • Bug fixing: edit digits, handling PreValue, html-bugs

Additional ideas

There are some ideas and feature request, which are not followed currently - mainly due to capacity reasons on side of the developer. They are collected here: FeatureRequest.md

History

5.0.0 Setup Modus - (2020-12-06)
4.1.1 Configuration editor - (2020-12-02)
4.0.0 Tflite Core - (2020-11-15)
3.1.0 MQTT-Client - (2020-10-26)
2.2.1 Version Control - (2020-09-27)
2.1.0 Decimal Shift, Chrome & Edge - (2020-09-25)
2.0.0 Layout update - (2020-09-12)
1.1.3 Initial Version - (2020-09-09)

Full Changelog

Solved topics

  • n.a.