SenseDistance

Measure distance with ESP32-S2 mini board / ESP32 POE and VL53L0X sensor

Licence

Licensed under the European Union Public License (EUPL)-1.2-or-later

Why licensed under EUPL-1.2: it is compatible to GPL and compatible to EU-rights and regulations

Based on ESP32_ABL - Thank you!

Functions in Web-Interface

• INDEX-Page: display the last measured distance
• CONFIG-DATA: set and store parameter and WiFi-credentials
• EVENT-LOG: Serial debug logging
• UPDATE: over-the-air (Wifi) Software update
• INFO: Version, Build, Temp(ESP-intern), IP, Timeout, Charge-Cnt, RSSI

Fetch actual Values and State

http:<your-ip>/fetch

Receive: 42

decoded: <distance [mm]>

Download and Installation

• To download click the DOWNLOAD ZIP button, rename the uncompressed folder 'ESP32_SenseDistance' ...or clone it with git

PlatformIO and Arduino-IDE

Projekt was build and testet with PlatformIO.

Take care to upload the 'data' folder to the SPIFFS filesystem see: https://randomnerdtutorials.com/esp32-vs-code-platformio-spiffs/

With the following two command you can create and upload the SPIFFS image:

pio run --target buildfs
pio run --target uploadfs

Flash Program (without PlatformIO or Arduino-IDE)

If you do not want to compile the program from source:

for the ESP32-S2 mini board I supply the actual firmware-version

• got to subfolder firmware/lolin_s2_mini/V1_2

• put ESP32-S2 board to flash-mode:

• disconnect USB then press and hold "0"-button

• reconnect USB hold "0"-button

• then release "0"-button --> now the board is in program-mode

• run flash.sh (for Linux) or flash.bat (for Windows) (needs 'esptool.py') --> ask google

• after flashing reset or disconnect USB

• search WIFI connetions

• connect (without password)

• start your webbrowser at "192.168.4.1" (this is the startpage for the APP) to connect to your home-route navigate to "Setup" --> "Config-Data" and change:

varWIFI_s_Mode=STA; 
varWIFI_s_Password=mypassword;
varWIFI_s_SSID=myrouter;