1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-C 1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
2 %YAML 1.2 2 %YAML 1.2
3 --- 3 ---
4 $id: http://devicetree.org/schemas/iio/tempera 4 $id: http://devicetree.org/schemas/iio/temperature/melexis,mlx90632.yaml#
5 $schema: http://devicetree.org/meta-schemas/co 5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6 6
7 title: Melexis MLX90632 and MLX90635 contactle 7 title: Melexis MLX90632 and MLX90635 contactless Infra Red temperature sensor
8 8
9 maintainers: 9 maintainers:
10 - Crt Mori <cmo@melexis.com> 10 - Crt Mori <cmo@melexis.com>
11 11
12 description: | 12 description: |
13 https://www.melexis.com/en/documents/documen 13 https://www.melexis.com/en/documents/documentation/datasheets/datasheet-mlx90632
14 14
15 There are various applications for the Infra 15 There are various applications for the Infra Red contactless temperature
16 sensor and MLX90632 is most suitable for con 16 sensor and MLX90632 is most suitable for consumer applications where
17 measured object temperature is in range betw 17 measured object temperature is in range between -20 to 200 degrees
18 Celsius with relative error of measurement b 18 Celsius with relative error of measurement below 1 degree Celsius in
19 object temperature range for industrial appl 19 object temperature range for industrial applications. Since it can
20 operate and measure ambient temperature in r 20 operate and measure ambient temperature in range of -20 to 85 degrees
21 Celsius it is suitable also for outdoor use. 21 Celsius it is suitable also for outdoor use.
22 22
23 Be aware that electronics surrounding the se 23 Be aware that electronics surrounding the sensor can increase ambient
24 temperature. MLX90632 can be calibrated to r 24 temperature. MLX90632 can be calibrated to reduce the housing effect via
25 already existing EEPROM parameters. 25 already existing EEPROM parameters.
26 26
27 Since measured object emissivity effects Inf 27 Since measured object emissivity effects Infra Red energy emitted,
28 emissivity should be set before requesting t 28 emissivity should be set before requesting the object temperature.
29 29
30 https://www.melexis.com/en/documents/documen 30 https://www.melexis.com/en/documents/documentation/datasheets/datasheet-mlx90635
31 31
32 MLX90635 is most suitable for consumer appli 32 MLX90635 is most suitable for consumer applications where
33 measured object temperature is in range betw 33 measured object temperature is in range between -20 to 100 degrees
34 Celsius with relative error of measurement 2 34 Celsius with relative error of measurement 2 degree Celsius in
35 object temperature range for industrial appl 35 object temperature range for industrial applications, while just 0.2
36 degree Celsius for human body measurement ap 36 degree Celsius for human body measurement applications. Since it can
37 operate and measure ambient temperature in r 37 operate and measure ambient temperature in range of -20 to 85 degrees
38 Celsius it is suitable also for outdoor use. 38 Celsius it is suitable also for outdoor use.
39 39
40 Since measured object emissivity effects Inf 40 Since measured object emissivity effects Infra Red energy emitted,
41 emissivity should be set before requesting t 41 emissivity should be set before requesting the object temperature.
42 42
43 properties: 43 properties:
44 compatible: 44 compatible:
45 enum: 45 enum:
46 - melexis,mlx90632 46 - melexis,mlx90632
47 - melexis,mlx90635 47 - melexis,mlx90635
48 48
49 reg: 49 reg:
50 maxItems: 1 50 maxItems: 1
51 description: Default is 0x3a, but can be r 51 description: Default is 0x3a, but can be reprogrammed.
52 52
53 vdd-supply: 53 vdd-supply:
54 description: provide VDD power to the sens 54 description: provide VDD power to the sensor.
55 55
56 required: 56 required:
57 - compatible 57 - compatible
58 - reg 58 - reg
59 59
60 additionalProperties: false 60 additionalProperties: false
61 61
62 examples: 62 examples:
63 - | 63 - |
64 i2c { 64 i2c {
65 #address-cells = <1>; 65 #address-cells = <1>;
66 #size-cells = <0>; 66 #size-cells = <0>;
67 67
68 temp-sensor@3a { 68 temp-sensor@3a {
69 compatible = "melexis,mlx90632"; 69 compatible = "melexis,mlx90632";
70 reg = <0x3a>; 70 reg = <0x3a>;
71 vdd-supply = <&ldo4_reg>; 71 vdd-supply = <&ldo4_reg>;
72 }; 72 };
73 }; 73 };
74 ... 74 ...
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