# sensor\_env

* [TI/LM\*](#tilm)
* [ADI](#adi)
  * [DS18B20](#ds18b20)
* [aosong/ASAIR](#aosongasair)
  * [AHT25 vs DHT20 Sensor Comparison](#aht25-vs-dht20-sensor-comparison)
  * [AHT](#aht)

## TI/LM\*

* chart compare: <https://www.ti.com/product-category/sensors/temperature/analog/overview.html>
* table filter: <https://www.ti.com/product-category/sensors/temperature/analog/products.html>

## ADI

* Analog | <https://www.analog.com/en/parametricsearch/2772#/>
* Digital | <https://www.analog.com/en/parametricsearch/2750#/>

### DS18B20

<https://www.analog.com/media/en/technical-documentation/data-sheets/ds18b20.pdf>

\| by Grok | DS18B20 (Temperature Only) | DHT20 (Temperature + Humidity) | |----------------- -------|--------------------------------------------|---------------------------------------------| | **Interface** | 1-Wire (multi-sensor support) | I²C (single address) | | **Temperature Range** | -55°C to +125°C | -40°C to +85°C | | **Temperature Accuracy**| ±0.5°C (from -10°C to +85°C) | ±0.3°C (at 25°C) |

**Notes**: DS18B20 excels in precision temp monitoring (e.g., liquids)

## aosong/ASAIR

<https://www.aosong.com/Products/list.aspx?lcid=1>

### AHT25 vs DHT20 Sensor Comparison

DHT22 = AM2302 | 3.3-6V

### AHT

| by bing                  | AHT10          | AHT20(Gen 2)       | AHT21              |
| ------------------------ | -------------- | ------------------ | ------------------ |
| **Temperature Range**    | -40°C to +85°C | -40°C to +85°C     | -40°C to +120°C    |
| **Temperature Accuracy** | ±0.3°C typical | ±0.3°C typical     | ±0.3°C typical     |
| **Humidity Accuracy**    | ±2% RH typical | ±2% RH typical     | ±2% RH typical     |
| **Voltage Range**        | 1.8V – 3.6V    | 2.0V – 5.5V        | 2.0V – 5.5V        |
| **Current Consumption**  | \~400 µA       | \~980 µA (typical) | \~980 µA (typical) |


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