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Add loading of config data from node_config.json (#89)
* Added reading of hardware/deployment specific configuration node_config.json from LittleFS * Renamed BATTERY_DISCHARGE_LIMIT/BATTERY_CHARGE_LIMIT * Updated README.md
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,8 @@ | ||
| { | ||
| "timezone": "CET-1CEST,M3.5.0,M10.5.0/3", | ||
| "battery_weak": 3301, | ||
| "battery_low": 3401, | ||
| "battery_discharge_lim": 3201, | ||
| "battery_charge_lim": 4201, | ||
| "battery_capacity": 2201 | ||
| } |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,110 @@ | ||
| /////////////////////////////////////////////////////////////////////////////// | ||
| // LoadNodeCfg.cpp | ||
| // | ||
| // Load LoRaWAN node configuration 'node_config.json' from LittleFS, if available | ||
| // | ||
| // This configuration file is intended for hardware/deployment environment | ||
| // specific settings (e.g. battery voltage levels, timezone) | ||
| // | ||
| // created: 07/2024 | ||
| // | ||
| // | ||
| // MIT License | ||
| // | ||
| // Copyright (c) 2024 Matthias Prinke | ||
| // | ||
| // Permission is hereby granted, free of charge, to any person obtaining a copy | ||
| // of this software and associated documentation files (the "Software"), to deal | ||
| // in the Software without restriction, including without limitation the rights | ||
| // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | ||
| // copies of the Software, and to permit persons to whom the Software is | ||
| // furnished to do so, subject to the following conditions: | ||
| // | ||
| // The above copyright notice and this permission notice shall be included in all | ||
| // copies or substantial portions of the Software. | ||
| // | ||
| // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
| // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
| // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | ||
| // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
| // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | ||
| // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | ||
| // SOFTWARE. | ||
| // | ||
| // | ||
| // History: | ||
| // | ||
| // 20240725 Created | ||
| // | ||
| // ToDo: | ||
| // - | ||
| // | ||
| /////////////////////////////////////////////////////////////////////////////// | ||
|
|
||
| #include "LoadNodeCfg.h" | ||
|
|
||
| // Load LoRaWAN node configuration 'node_config.json' from LittleFS, if available | ||
| void loadNodeCfg( | ||
| String &tzinfo, | ||
| uint16_t &batt_weak, | ||
| uint16_t &batt_low, | ||
| uint16_t &batt_discharge_lim, | ||
| uint16_t &batt_charge_lim, | ||
| uint16_t &batt_capacity) | ||
| { | ||
| uint16_t foo = 42; | ||
|
|
||
| if (!LittleFS.begin( | ||
| #if defined(ESP32) | ||
| // Format the LittleFS partition on error; parameter only available for ESP32 | ||
| true | ||
| #endif | ||
| )) | ||
| { | ||
| log_d("Could not initialize LittleFS."); | ||
| } | ||
| else | ||
| { | ||
| File file = LittleFS.open("/node_config.json", "r"); | ||
|
|
||
| if (!file) | ||
| { | ||
| log_i("File 'node_config.json' not found."); | ||
| } | ||
| else | ||
| { | ||
| log_d("Reading 'node_config.json'"); | ||
| JsonDocument doc; | ||
|
|
||
| // Deserialize the JSON document | ||
| DeserializationError error = deserializeJson(doc, file); | ||
| if (error) | ||
| { | ||
| log_d("Failed to read JSON file, using defaults."); | ||
| } | ||
| else | ||
| { | ||
| if (doc.containsKey("timezone")) | ||
| tzinfo = doc["timezone"].as<String>(); | ||
| if (doc.containsKey("battery_weak")) | ||
| batt_weak = doc["battery_weak"]; | ||
| if (doc.containsKey("battery_low")) | ||
| batt_low = doc["battery_low"]; | ||
| if (doc.containsKey("battery_discharge_lim")) | ||
| batt_discharge_lim = doc["battery_discharge_lim"]; | ||
| if (doc.containsKey("battery_charge_lim")) | ||
| batt_charge_lim = doc["battery_charge_lim"]; | ||
| if (doc.containsKey("battery_capacity")) | ||
| batt_capacity = doc["battery_capacity"]; | ||
| } // deserializeJson o.k. | ||
| } // file read o.k. | ||
| file.close(); | ||
| } // LittleFS o.k. | ||
|
|
||
| log_d("Timezone: %s", tzinfo.c_str()); | ||
| log_d("Battery weak: %4d mV", batt_weak); | ||
| log_d("Battery low: %4d mV", batt_low); | ||
| log_d("Battery discharge limit: %4d mV", batt_discharge_lim); | ||
| log_d("Battery charge limit: %4d mV", batt_charge_lim); | ||
| log_d("Battery capacity: %4d mAh", batt_capacity); | ||
| } // loadNodeCfg() |
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