====== IanalogReadf() ======

''IanalogReadf()'' converts the analog input value to the specified floating-point range.

{{:en-us_commands:reference:ianalogreadf.svg?900|IanalogReadf command operation flow}}

''float IanalogReadf(uint8_t ch, float min, float max)''

===== Commands =====

^ Command ^ Arguments ^ Return Value ^ Operation ^
| ''IanalogReadf(ch, min, max)'' | ''uint8_t ch'' — Analog input pin or channel to read\\ ''float min'' — Minimum ''int32_t'' conversion result\\ ''float max'' — Maximum ''int32_t'' conversion result | ''float'' | Converts the analog input value to the specified floating-point range. |


===== Example =====

<code cpp>
void setup() {
  Serial.begin(115200);
}

void loop() {
  float voltage = IanalogReadf(A0, 0.0F, 10.0F);  // Map the analog input value to the specified floating-point range.
  Serial.println(voltage, 2);
  delay(500);
}
</code>

===== Precautions =====

  * ''min'' and ''max'' define the conversion range of the return value, not the actual electrical input range of the sensor.
  * Range limiting by ''Iscale()'' or ''Iscalef()'' keeps the result between the two specified output endpoints.
  * Setting ''min'' greater than ''max'' reverses the output range. Example: ''IanalogRead(A0, 100, 0)''.
  * MPINO and MPAINO have different raw ADC ranges. Always use ''ch'' appropriate to the selected board.
  * Set the MPAINO analog input module's DIP switches and wiring to match the actual input type.
  * This command performs only linear range conversion. Sensor error compensation, open-circuit detection or 4~20mA software Cut requires separate processing.

===== Built-in Commands in the Same Category =====

  * [[:en-us_commands:reference:ianalogread|IanalogRead() View detailed description]]

[[:en-us_commands:builtin|← Built-in Command List]]