Thu, 25 Oct 2018 17:36:02 +0200
Added extra mash step fields for infusion steps. Added these fields in recipe import too.
0 | 1 | # esp32-ds18b20 |
2 | ||
3 | ## Introduction | |
4 | ||
5 | This is a ESP32-compatible C component for the Maxim Integrated DS18B20 Programmable Resolution 1-Wire Digital Thermometer device. | |
6 | ||
7 | It supports multiple devices on the same 1-Wire bus. | |
8 | ||
9 | It is written and tested for v2.1 and v3.0 of the [ESP-IDF](https://github.com/espressif/esp-idf) environment, using the xtensa-esp32-elf toolchain (gcc version 5.2.0). | |
10 | ||
11 | ## Dependencies | |
12 | ||
13 | Requires [esp32-owb](https://github.com/DavidAntliff/esp32-owb). | |
14 | ||
15 | ## Example | |
16 | ||
17 | See [esp32-ds18b20-example](https://github.com/DavidAntliff/esp32-ds18b20-example) for an example that supports single and multiple devices on a single bus. | |
18 | ||
19 | ## Features | |
20 | ||
21 | In cooperation with the underlying esp32-owb component, this component includes: | |
22 | ||
23 | * External power supply mode (parasitic mode not yet supported). | |
24 | * Static (stack-based) or dynamic (malloc-based) memory model. | |
25 | * No globals - support any number of DS18B20 devices on any number of 1-Wire buses simultaneously. | |
26 | * 1-Wire device detection and validation, including search for multiple devices on a single bus. | |
27 | * Addressing optimisation for a single (solo) device on a bus. | |
28 | * CRC checks on temperature data. | |
29 | * Programmable temperature measurement resolution (9, 10, 11 or 12-bit resolution). | |
30 | * Temperature conversion and retrieval. | |
31 | * Separation of conversion and temperature retrieval to allow for simultaneous conversion across multiple devices. | |
32 | ||
33 | ## Documentation | |
34 | ||
35 | Automatically generated API documentation (doxygen) is available [here](https://davidantliff.github.io/esp32-ds18b20/index.html). | |
36 | ||
37 | ## Source Code | |
38 | ||
39 | The source is available from [GitHub](https://www.github.com/DavidAntliff/esp32-ds18b20). | |
40 | ||
41 | ## License | |
42 | ||
43 | The code in this project is licensed under the MIT license - see LICENSE for details. | |
44 | ||
45 | ## Links | |
46 | ||
47 | * [DS18B20 Datasheet](http://datasheets.maximintegrated.com/en/ds/DS18B20.pdf) | |
48 | * [1-Wire Communication Through Software](https://www.maximintegrated.com/en/app-notes/index.mvp/id/126) | |
49 | * [1-Wire Search Algorithm](https://www.maximintegrated.com/en/app-notes/index.mvp/id/187) | |
50 | * [Espressif IoT Development Framework for ESP32](https://github.com/espressif/esp-idf) | |
51 | ||
52 | ## Acknowledgements | |
53 | ||
54 | Parts of this code are based on references provided to the public domain by Maxim Integrated. | |
55 | ||
56 | "1-Wire" is a registered trademark of Maxim Integrated. | |
57 | ||
58 | ## Roadmap | |
59 | ||
60 | The following features are anticipated but not yet implemented: | |
61 | ||
62 | * Concurrency support (multiple tasks accessing devices on the same bus). | |
63 | * Alarm support. | |
64 | * EEPROM support. | |
65 | * Parasitic power support. |