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

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

Donate

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

If you have any technical topics, you can file a issue in this repository.

In other cases you can contact the developer via email:

Change log

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Known Issues

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

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

Rolling - (2021-07-11)

• GPIO: implements basic functionality for GPIO handler.
  • Configuration via config.ini / HTML page
  • GPIO 12, 13, 1, 3, 0, 4 can be used (see restrictions in HTML configuration page)
  • GPIO can be used as input or output
  • pullup / pulldown can be enabled
  • supports all interrupt types of the ESP32
  • publishing via MQTT or HTTP
  • definition of the MQTT topic name
• HTML: implements regex mask for text input fields (currently enabled for GPIO inputs and main topic)
• HTML: automatic detection of select fields
• MQTT: added readings for uptime and freeMem (can be used for tracking with Infux DB and as memory leak detection)
• MQTT: connection is no longer terminated and reestablished on each flow
• Classe ConfigFile created. Can be used by all components in the future.
• Bugfix: memory leaks in ClassFlowAnalog and ClassFlowControll fixed.
• Removed compiler warnings

Rolling - (2021-07-08)

• MQTT: added json output

Rolling - (2021-07-07)

• Updated server configuration (avoid server blocking in case too many connections in parallel)
• HTML: update ROI definition (show all ROIs)

Rolling - (2021-07-05)

• Update jquery, inital config.ini

Rolling - (2021-07-03)

• Parameter MaxRateValue individual for each number
• BugFix: MQTT server tried to connect even in case it was disabled

Rolling - (2021-07-01)

• NEW FEATURE: adding support for more than 1 number on a meter (e.g. two different power readings) Therefore the concept of "Numbers" is implemented - a bunch of digits and analog counters are combined to one number. You can define them during setup of digital and analog ROIs:

• MQTT: standardization of the naming - only the main topic needs to be specified. The subtopics will be named automatically. This is necessary to handle the multi number option. ATTENTION: the parameter maintopic needs to be set

• Remark:

  • This is an early stage - do only use it on a test system and make a backup of your configuration.
  • The documentation is not updated yet.

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

Rolling - (2021-06-17)

• bug fix setting hostname, Flash-LED not off during reboot

Rolling - (2021-06-11)

• Restructuring for multi number counters
  • Major internal and html changes (html and firmware)
• ATTENTION: the configuration and prevalue files are modified automatically and will not be backward compatible!

7.1.2 MQTT-Update - (2021-06-17)

• NEW: 7.1.2: bug fix setting hostname, Flash-LED not off during rebootNEW: 7.1.1: bug fix wlan password with "=" (again)
• MQTT error message: changes "no error", send retain flag
• Update wlan handling to esp-idf 4.1
• Upgrade digital CNN to v8.7.0 (added new images)
• Bug fix: MQTT, WLAN, LED-Controll, GPIO usage, fixed IP, calculation flow rate

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

• NEW: 7.0.1: bug fix wlan password with "="

• Upgrade digital CNN to v8.5.0 (added new images)

• New MQTT topics: flow rate (units/minute), time stamp (last correct read readout)

• Update MQTT/Error topic to " " in case no error (instead of empty string)

• Portrait or landscape image orientation in rotated image (avoid cropping)

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

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History

6.7.2 Image Processing in Memory - (2021-05-01)

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.