ANALOG

Category: Function
Syntax: ANALOG(pin)

Description

Reads the current voltage on the specified GPIO pin using the microcontroller's internal Analog-to-Digital Converter (ADC).

The function returns an integer corresponding to the raw ADC readout, rather than an absolute voltage value. The range of this return value depends on your specific MCU's hardware ADC resolution (for example, 0 to 1023 for a 10-bit ADC, or 0 to 4095 for a 12-bit ADC).

Typically, a return value of 0 represents ground (0V), while the maximum integer value corresponds to the system's analog reference voltage (usually VCC, such as 3.3V or 5.0V).

See also

• PIN
• OUT

Example

10 PIN(26, IN)
20 LET A = ANALOG(26)
30 PRINT("Analog read: ", A)