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adc: update adc programming guide to avoid build fail
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@ -76,7 +76,7 @@ Reading voltage on ADC1 channel 0 ({IDF_TARGET_ADC1_CH0})::
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int val = adc1_get_raw(ADC1_CHANNEL_0);
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int val = adc1_get_raw(ADC1_CHANNEL_0);
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The input voltage in the above example is from 0 to 1.1 V (0 dB attenuation). The input range can be extended by setting a higher attenuation, see :cpp:type:`adc_atten_t`.
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The input voltage in the above example is from 0 to 1.1 V (0 dB attenuation). The input range can be extended by setting a higher attenuation, see :cpp:type:`adc_atten_t`.
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An example of using the ADC driver including calibration (discussed below) is available at esp-idf: :example:`peripherals/adc/adc`
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An example of using the ADC driver including calibration (discussed below) is available at esp-idf: :example:`peripherals/adc`
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Reading voltage on ADC2 channel 7 ({IDF_TARGET_ADC2_CH7})::
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Reading voltage on ADC2 channel 7 ({IDF_TARGET_ADC2_CH7})::
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@ -95,7 +95,7 @@ Reading voltage on ADC2 channel 7 ({IDF_TARGET_ADC2_CH7})::
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}
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}
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The reading may fail due to collision with Wi-Fi, should check it.
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The reading may fail due to collision with Wi-Fi, should check it.
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An example using the ADC2 driver to read the output of DAC is available in esp-idf: :example:`peripherals/adc/adc2`
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An example using the ADC2 driver to read the output of DAC is available in esp-idf: :example:`peripherals/adc`
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.. only:: esp32
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.. only:: esp32
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