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| en:multiasm:exercisesbook:arduinouno [2026/03/26 23:20] – [Table] pczekalski | en:multiasm:exercisesbook:arduinouno [2026/03/26 23:42] (current) – [Reading analogue values] pczekalski | ||
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| ==== Reading analogue values ==== | ==== Reading analogue values ==== | ||
| - | Reading of the analogue values is not so straightforward as in the case of binary ones. Analogue reading uses a complex setup of ADC-related registers as presented in table {{ref> | + | Reading of the analogue values is not so straightforward as in the case of binary ones. |
| + | Built-in ADC converter uses 10-bit resolution, has 6 channels (A0-A5, respectively). It also uses a reference voltage (configurable), | ||
| + | The low-level ADC register-based operations use the following formula to obtain an ADC value (figure {{ref> | ||
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| + | <figure avreq1> | ||
| + | {{: | ||
| + | < | ||
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| + | Analogue reading uses a complex setup of ADC-related registers as presented in table {{ref> | ||
| <table tabadcregisters> | <table tabadcregisters> | ||
| - | < | + | < |
| ^ Register | ^ Register | ||
| | '' | | '' | ||
