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:4571627

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!

6.5.0 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.

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