HC-SR04 for ESP32 crash after 45minutes of running

[alberk8]

Library/API/IoT binding

nanoFramework.Iot.Device.Hcsr04.Esp32

Visual Studio version

v2022 17.2.3

.NET nanoFramework extension version

2022.2.023

Target name(s)

ESP32_REV0

Firmware version

1.8.0.431

Device capabilities

No response

Description

I have a loop to get distance measurement from HC-SR04 ultrasonic sensor on ESP32 and after a running for 45minutes to 1 hour, I get this error.

Distance: 24.27969149 cm  memory: 99504 Cnt: 13858
Distance: 24.27969149 cm  memory: 99504 Cnt: 13859
Distance: 24.27969149 cm  memory: 99504 Cnt: 13860
Distance: 24.27969149 cm  memory: 99504 Cnt: 13861
    ++++ Exception System.ArgumentOutOfRangeException - 0x00000000 (1) ++++
    ++++ Message:
    ++++ System.Threading.Thread::Sleep [IP: 001e] ++++
    ++++ Iot.Device.Hcsr04.Esp32.Hcsr04::TryGetDistance [IP: 0018] ++++
    ++++ nanoFramework_HR_SC04.Program::Main [IP: 001d] ++++
nF Error: Exception was thrown: System.ArgumentOutOfRangeException

How to reproduce

Run the code here

Expected behaviour

Not crash.

Screenshots

No response

Sample project or code

No response

Aditional information

The code crash here. The value of DateTime.UtcNow.Ticks is less then _lastMeasurment.

[josesimoes]

@alberk8 from your report on Discord I believe you've tested a fix for this. Can you please submit a PR with the proposed fix? 😉