# Versions ##### 8.5.0 - Multi Meter Support (2021-10-07) * Upgrade digital CNN to v13.1.0 (added new images) * bug fix: wlan password with space, double digit output ##### 8.4.0 - Multi Meter Support (2021-09-25) * 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) ### **ATTENTION: LICENSE CHANGE - removal of MIT License.** - 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 ##### 8.3.0 - Multi Meter Support (2021-09-12) * 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 ##### 8.2.0 - Multi Meter Support (2021-08-24) * Improve server responsiveness * Flow status and prevalue status in overview * Improved prevalue handling ##### 8.1.0 - Multi Meter Support (2021-08-12) * 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 ##### 8.0.5 - Multi Meter Support (2021-08-01) * 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!** ##### 7.1.2 MQTT-Update - (2021-06-17) * NEW: 7.1.2: bug fix setting hostname, Flash-LED not off during reboot * NEW: 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) ##### 6.7.2 Image Processing in Memory - (2021-05-01) * NEW 6.7.2: Updated html for setup modus - remove reboot on edit configuration) * NEW 6.7.1: Improved stability of camera (back to v6.6.1) - remove black strips and areas * Upgrade digital CNN to v8.3.0 (added new type of digits) * Internal update: TFlite (v2.5), esp32cam, startup sequence * Rollback to espressif v2.1.0, as v3.2.0 shows unstable reboot * Bugfix: WLan-passwords, reset of hostname ##### 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 ##### 5.0.0 Setup Modus - (2020-12-06) * Implementation of initial setup modus for fresh installation * Code restructuring (full compatibility between pure ESP-IDF and Platformio w/ espressif) ##### 4.1.1 Configuration editor - (2020-12-02) * Bug fixing: internal improvement of file handling (reduce not responding) ##### 4.1.0 Configuration editor - (2020-11-30) * Implementation of configuration editor (including basic and expert mode) * Adjustable time zone to adjust to local time setting (incl. daylight saving time) * MQTT: additional topic for error reporting * standardized access to current logfile via `http://IP-ADRESS/logfileact` * Update digital CNN to v7.2.0, analog CNN to 6.3.0 * Bug fixing: truncation error, CheckDigitConsistency & PreValue implementation ##### 4.0.0 Tflite Core - (2020-11-15) * Implementation of rolling log-files * Update Tflite-Core to master@20201108 (v2.4) * Bug-fixing for reducing reboots ##### 3.1.0 MQTT-Client - (2020-10-26) * Update digital CNN to v6.5.0 and HTML (Info to hostname, IP, ssid) * New implementation of "checkDigitConsistency" also for digits * MQTT-Adapter: user and password for sign in MQTT-Broker ##### 3.0.0 MQTT-Client (2020-10-14) * Implementation of MQTT Client * Improved Version Control * bug-fixing ##### 2.2.1 Version Control (2020-09-27) * Bug-Fixing (hostname in wlan.ini and error handling inside flow) ##### 2.2.0 Version Control (2020-09-27) * Integrated automated versioning system (menu: SYSTEM --> INFO) * Update Build-System to PlatformIO - Espressif 32 v2.0.0 (ESP-IDF 4.1) ##### 2.1.0 Decimal Shift, Chrome & Edge (2020-09-25) * Implementation of Decimal Shift * Update default CNN for digits to v6.4.0 * Improvement HTML * Support for Chrome and Edge * Reduce logging to minimum - extended logging on demand * Implementation of hostname in wlan.ini (`hostname = "HOSTNAME")` * Bug fixing, code corrections ##### 2.0.0 Layout update (2020-09-12) * Update to **new and modern layout** * Support for Chrome improved * Improved robustness: improved error handling in auto flow reduces spontaneous reboots * File server: Option for "DELETE ALL" * WLan: support of spaces in SSID and password * Reference Image: Option for mirror image, option for image update on the fly * additional parameter in `wasserzaehler.html?noerror=true` to suppress an potential error message * bug fixing ##### 1.1.3 (2020-09-09) * **Bug in configuration of analog ROIs corrected** - correction in v.1.0.2 did not work properly * Improved update page for the web server (`/html` can be updated via a zip-file, which is provided in `/firmware/html.zip`) * Improved Chrome support ##### 1.1.0 (2020-09-06) * Implementation of "delete complete directory" **Attention: beside the `firmware.bin`, also the content of `/html` needs to be updated!** ##### 1.0.2 (2020-09-06) * Bug in configuration of analog ROIs corrected * minor bug correction ##### 1.0.1 (2020-09-05) * preValue.ini Bug corrected * minor bug correction ##### 1.0.0 (2020-09-04) * **First usable version** - compatible to previous project (https://github.com/jomjol/water-meter-system-complete) * NEW: * no docker container for CNN calculation necessary * web based configuration editor on board ##### 0.1.0 (2020-08-07) * Initial Version