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doc(temperature_sensor): Update temperature snesor docs, remove inaccurate part
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@@ -8,29 +8,9 @@ Introduction
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The {IDF_TARGET_NAME} has a built-in sensor used to measure the chip's internal temperature. The temperature sensor module contains an 8-bit Sigma-Delta analog-to-digital converter (ADC) and a digital-to-analog converter (DAC) to compensate for the temperature measurement.
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The {IDF_TARGET_NAME} has a built-in sensor used to measure the chip's internal temperature. The temperature sensor module contains an 8-bit Sigma-Delta analog-to-digital converter (ADC) and a digital-to-analog converter (DAC) to compensate for the temperature measurement.
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Due to restrictions of hardware, the sensor has predefined measurement ranges with specific measurement errors. See the table below for details.
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.. list-table::
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:header-rows: 1
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:widths: 50 50
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:align: center
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* - Predefined Range (°C)
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- Error (°C)
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* - 50 ~ 125
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- < 3
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* - 20 ~ 100
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- < 2
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* - -10 ~ 80
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- < 1
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* - -30 ~ 50
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- < 2
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* - -40 ~ 20
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- < 3
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.. note::
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.. note::
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The temperature sensor is designed primarily to measure the temperature changes inside the chip. The internal temperature of a chip is usually higher than the ambient temperature, and is affected by factors such as the microcontroller's clock frequency or I/O load, and the external thermal environment.
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The temperature sensor is designed primarily to measure the temperature **inside** the silicon. The sensor can reflect the temperature changes very well but it can't give a precise measurement value. So it's not recommended to use it for ambient temperature measurement.
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Functional Overview
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Functional Overview
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-------------------
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-------------------
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@@ -8,29 +8,9 @@
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{IDF_TARGET_NAME} 内置传感器,用于测量芯片内部的温度。该温度传感器模组包含一个 8 位 Sigma-Delta 模拟-数字转换器 (ADC) 和一个数字-模拟转换器 (DAC),可以补偿测量结果,减少温度测量的误差。
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{IDF_TARGET_NAME} 内置传感器,用于测量芯片内部的温度。该温度传感器模组包含一个 8 位 Sigma-Delta 模拟-数字转换器 (ADC) 和一个数字-模拟转换器 (DAC),可以补偿测量结果,减少温度测量的误差。
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由于硬件限制,温度传感器存在预定义的测量范围及其对应误差,详见下表:
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.. list-table::
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:header-rows: 1
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:widths: 50 50
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:align: center
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* - 预定义测量范围 (°C)
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- 测量误差 (°C)
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* - 50 ~ 125
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- < 3
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* - 20 ~ 100
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- < 2
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* - -10 ~ 80
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- < 1
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* - -30 ~ 50
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- < 2
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* - -40 ~ 20
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- < 3
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.. note::
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.. note::
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温度传感器主要用于测量芯片内部的温度变化。芯片内部温度通常高于环境温度,并且受到微控制器的时钟频率或 I/O 负载、外部散热环境等因素影响。
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温度传感器主要用于测量芯片内部的温度变化。温度值可用作衡量温度变化趋势,但无法提供精确的温度数值,因此不建议用作精准测量温度。
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功能概述
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功能概述
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-------------------
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-------------------
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@@ -7,13 +7,13 @@ The ESP32-S2/C3/S3/C2 has a built-in temperature sensor. The temperature sensor
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The conversion relationship is the first two columns of the table below. Among them, `offset = 0`(default) is the main measurement option, and other values are extended measurement options.
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The conversion relationship is the first two columns of the table below. Among them, `offset = 0`(default) is the main measurement option, and other values are extended measurement options.
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| DAC level | offset | measure range(℃) | measure error(℃) |
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| DAC level | offset | measure range(℃) |
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| :-------: | :----: | :--------------: | :--------------: |
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| :-------: | :----: | :--------------: |
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| 0 | -2 | 50 ~ 125 | < 3 |
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| 0 | -2 | 50 ~ 125 |
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| 1 | -1 | 20 ~ 100 | < 2 |
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| 1 | -1 | 20 ~ 100 |
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| 2 | 0 | -10 ~ 80 | < 1 |
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| 2 | 0 | -10 ~ 80 |
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| 3 | 1 | -30 ~ 50 | < 2 |
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| 3 | 1 | -30 ~ 50 |
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| 4 | 2 | -40 ~ 20 | < 3 |
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| 4 | 2 | -40 ~ 20 |
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## How to use example
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## How to use example
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