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

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

or here https://www.thingiverse.com/thing:5028229

respectively ESP32-Cam housing only: https://www.thingiverse.com/thing:4571627

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

In other cases you can contact the developer via email:

• 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!

• Direct JSON access: http://IP-ADRESS/json
• Error message in log file in case camera error during startup
• Upgrade analog CNN to v9.1.0
• Upgrade digital CNN to v13.3.0 (added new images)
• html: support of different ports

• NEW 9.1.1 bug fix: LED implemenetation
• External LEDs: change control mode (resolve bug with more than 2 LEDs)
• Additional info into log file
• Bug fix: decimal shift, html, log file

• Implementation of external illumination to adjust positioning, brightness and color of the illumination now individually
  • Technical details can be found in the wiki: https://github.com/jomjol/AI-on-the-edge-device/wiki/External-LED
  
• New housing published for external LEDs and small clearing: https://www.thingiverse.com/thing:5028229

• Upgrade digital CNN to v13.1.0 (added new images)
• bug fix: wlan password with space, double digit output

• License change (remove MIT license, remark see below)

• html: show hostname in title and main page

• configuration:

  • moved setting ExtendedResolution to individual number settings
  • New parameter IgnoreLeadingNaN (delete leading NaN's specifically)
  • ATTENTION: update of the config.ini needed (open, adjust ExtendedResolution, save)

• Bug fixing (html, images of recognized numbers)

• Currently no licence published - copyright belongs to author
• If you are interested in a commercial usage or dedicated versions please contact the developer
  • no limits to private usage

• Upgrade digital CNN to v12.1.0 (added new images)
• Dedicated NaN handling, internal refactoring (CNN-Handling)
• HTML: confirmation after config.ini update
• Bug fixing

• Improve server responsiveness
• Flow status and prevalue status in overview
• Improved prevalue handling

• GPIO: using the general mqtt main topic for GPIO

• Upgrade digital CNN to v12.0.0 (added new images)

• Update tfmicro to new master (2021-08-07)

• Bug fix: remove text in mqtt value, remove connect limit in wlan reconnet

• NEW 8.0.5: bug fix: saving prevalue
• NEW 8.0.4: bug fix: load config.ini after upgrade
• NEW 8.0.3: bug fix: reboot during config.ini handling, html error
• NEW 8.0.2: saving roundes prevalue, bug fix html server
• NEW 8.0.1: bug fix: html handling of parameter FixedExposure and ImageSize
• Dual / multi meter support (more than 1 number to be recognized) This is implemented with the feature "number" on the ROI definition as well as selected options
• MQTT: standardization of the naming - including new topics (json, freeMem , uptime)c
• Preparation for extended GPIO support (thanks to Zwerk2k) - not tested and fully functional yet
• Bug fixing: html server, memory leak, MQTT connect, hostname, turn of flash LED

ATTENTION: the configuration and prevalue files are modified automatically and will not be backward compatible!

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

7.0.1 MQTT-Update - (2021-05-13)