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
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
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License change (remove MIT license, remark see below)
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html: show hostname in title and main page
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configuration:
- moved setting
ExtendedResolutionto individual number settings - New parameter
IgnoreLeadingNaN(delete leading NaN's specifically) - ATTENTION: update of the
config.inineeded (open, adjustExtendedResolution, save)
- moved setting
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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
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GPIO: using the general mqtt main topic for GPIO
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Upgrade digital CNN to v12.0.0 (added new images)
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Update tfmicro to new master (2021-08-07)
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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.inihandling, html error - NEW 8.0.2: saving roundes prevalue, bug fix html server
- NEW 8.0.1: bug fix: html handling of parameter
FixedExposureandImageSize - 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)