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Tally counter with prostrations auto counting function for LilyGO TTGO T-Display ESP32 board.

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T-Display-Dharma-Counter

Tally counter with prostrations auto counting function for LilyGO TTGO T-Display ESP32 board.

Version 1.0

Connections

External buttons connected to GND and board pins:
Pin 2 - [INC], [+] increment button
Pin 27 - [DEC], [-] decrement button
Pin 12 - [Audio], [Pause] button
Build in buttons:
Pin 0 - [NXT] next mode button
Pin 35 - [PRV] previous mode button
VL53L0X module for prostrations counter connected:
SCL to pin 22 of board
SDA to pin 21 of board
Micro audio speaker (10mm) connected to:
Pin 25 and GND

Schematic

Schematic

Functionality

[INC] - increase current counter
[DEC] - decrease current counter
[DEC] long press - reset current counter
[NXT] - next counter mode
[PRV] - previous counter mode
[Audio] - Sound ON/OFF and Pause/Count in prostartions counter mode
[NXT] long press or [PRV] long press - Configuration menu

Configuration menu

The menu has minimal functionality. Most of the configuration is carried out through the web server in AP mode.
[NXT] - next menu element
[PRV] - previous menu element
[INC] - select/increase value
[DEC] - decrease value

Web server

Web server in AP (Access Point) mode. After connecting to the Access Point via WiFi, use the IP address in the browser to open the configuration page.
Buttons:
[INC] - show QR code for server IP
[DEC] - exit from AP mode

Prostrations auto counting

A distance sensor VL53L0X is used for auto counting.
Counting logic:
If the distance is less than specified (70 cm) during a certain time, then this is defined as a prostration.
After the distance has become more than specified (70 cm) for a certain time, it is defined as the beginning of a new prostration.
Using demo

Compilation of the application

The application is compiled in the Arduino IDE.
The application size is about 1.8 Mb, so use partition scheme with 2 Mb or more for APP.
All files from \data folder, must be uploaded to the SPIFFS.
For that purpose you can use this tool: https://github.com/me-no-dev/arduino-esp32fs-plugin
Or this tool: https://github.com/dsiberia9s/DESKTOP_A-Explorer_File_Browser_via_Serial
Used external libraries:
Battery level: Pangodream_18650_CL - https://www.pangodream.es/esp32-getting-battery-charging-level
Audio library: XT_DAC_Audio - https://www.xtronical.com/the-dacaudio-library-download-and-installation
VL53L0X Distance Sensor: Adafruit_VL53L0X - https://github.com/adafruit/Adafruit_VL53L0X
Buttons: EasyButton - https://easybtn.earias.me/ , https://github.com/evert-arias/EasyButton
JSON configuration files: ArduinoJson - https://arduinojson.org/ , https://github.com/bblanchon/ArduinoJson
Web Server:
AsyncTCP - https://github.com/me-no-dev/AsyncTCP
ESPAsyncWebServer - https://github.com/me-no-dev/ESPAsyncWebServer
QR Code - https://github.com/ricmoo/qrcode/

Some photos

Counter 7

Counter 21

Counter 108

Prostrations counter

Tally counter 3

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Tally counter with prostrations auto counting function for LilyGO TTGO T-Display ESP32 board.

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