adc

ADC (Analog-to-Digital Converter)

Hardware that converts continuous analog signals into discrete digital values.

Steps: Sample → Quantize → Encode

Key parameters:

• Sampling rate (fs = 1/T Hz): how many samples per second
• Bit resolution (2^n levels): how many discrete values possible

The Raspberry Pi has NO built-in ADC. Use the Grove Base Hat for analog signals: 4 channels, 12-bit resolution (0–4095 values, 0–3.3V range).

See Also

• Signals and ADC topic
• GPIO and reTerminal topic