HASensorNumber - Exception 28: LoadProhibited: A load referenced a page mapped with an attribute that does not permit loads

[michelep]

Calling setValue on a HASensorNumber object cause Exception 28 on an ESP8266 board ESPduino 12E

Here's the piece of code, from a Dallas DS18B20 temperature sensor:

HADevice device;
HAMqtt mqtt(client, device);

HASensorNumber waterSensor("water_temp", HASensorNumber::PrecisionP2);

[...]

float waterTemp;

void loop() {
[...]
    sensors.requestTemperatures(); 
    waterTemp = sensors.getTempCByIndex(0);
    waterSensor.setValue(waterTemp);
  }
}

Here's the trace:

Decoding stack results
0x40212f13: HABaseDeviceType::publishOnDataTopic(__FlashStringHelper const*, unsigned char const*, unsigned short, bool, bool) at /Arduino/libraries/arduino-home-assistant/src/device-types/HABaseDeviceType.h line 44
0x40213250: HASensorNumber::onMqttConnected() at /Arduino/libraries/arduino-home-assistant/src/device-types/HABaseDeviceType.h line 44
0x40213226: HASensorNumber::publishValue(HANumeric const&) at /Arduino/libraries/arduino-home-assistant/src/device-types/HASensorNumber.cpp line 59
0x402132a8: HASwitch::buildSerializer() at /Arduino/libraries/arduino-home-assistant/src/device-types/HASwitch.cpp line 39
0x40202c00: loop() at ESP8266_Relay_X4/ESP8266_Relay_X4.ino line 431
0x40201d01: ArduinoJson::V730PB22::detail::parseNumber(char const*) at /Arduino/libraries/ArduinoJson/src/ArduinoJson/Numbers/FloatTraits.hpp line 204
0x40218648: user_rf_pre_init() at /.arduino15/packages/esp8266/hardware/esp8266/3.1.2/cores/esp8266/core_esp8266_phy.cpp line 362