https://github.com/turtureanu/esp8266-distance-measurement

Using an ESP8266 to get the distance data from an AJ-SR04M ultrasonic sensor over a really simple REST API.
https://github.com/turtureanu/esp8266-distance-measurement

arduino arduino-esp8266 distance-sensor esp8266 sensor

Last synced: 1 day ago
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Using an ESP8266 to get the distance data from an AJ-SR04M ultrasonic sensor over a really simple REST API.

• Host: GitHub
• URL: https://github.com/turtureanu/esp8266-distance-measurement
• Owner: turtureanu
• License: mit
• Created: 2024-08-29T14:29:46.000Z (4 months ago)
• Default Branch: main
• Last Pushed: 2024-08-29T15:32:15.000Z (4 months ago)
• Last Synced: 2024-11-03T20:42:18.477Z (about 2 months ago)
• Topics: arduino, arduino-esp8266, distance-sensor, esp8266, sensor
• Language: OpenSCAD
• Homepage:
• Size: 2.37 MB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# ESP8266 distance measurement

![a photo of the ESP8266 with the sensor soldered on, without the case](./ESP8266-with-AJ-SR04M-soldered.jpg)

## Case

![a screenshot of the 3D case](./case.png)

[STL File](./Case.stl) [SCAD file](./Case.scad)

## Arduino Code Logic

[Arduino code](./ESP8266.ino)

```mermaid

flowchart TD

    A("Initialize Serial Communication") --> B("Initialize Wi-Fi")

    B --> C("Try to Connect to WAP")

    C --> D{"Is Connected?"}

    D -->|Yes| H("Set Up Webserver")

    D -->|No| F["Print Status to Serial Console"]

    F --> G["Wait for Connection"]

    G --> C

    H --> I("Loop")

    I --> J{"Is there an HTTP Request?"}

    J -->|Yes| K["Send Distance Data as JSON over HTTP"]

    J -->|No| M["Print Distance to Serial Console"]

    K --> M

    M --> I

```