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Optically improved the readme

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Kai Lauterbach 2024-02-08 16:16:31 +01:00
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README.md
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## Webserver API
## Webserver
The web server is implemented on the ESP32 and provides various endpoints for operation and display of information. Here are the defined URLs and their functions:
@ -32,7 +32,7 @@ This is an example of a JSON object containing various measurement values and co
"ina226Status": 3,
"ina226ShuntValue": 0.0002,
"ina226AlertFlag": 0,
"ina226AlertLimit": 0.1,
"ina226AlertLimit": 0,
"ina226CurrentLSB": 0.0005
}
```
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- `ina226AlertLimit`: The limit value for alerts from the INA226 chip.
- `ina226CurrentLSB`: The value of the least significant bit (LSB) for the current according to the INA226 chip in amperes.
### Error codes in `errorCode`
The variable `globalError` is used as a bitmask, where each bit represents a specific error condition. Here are the possible error codes and their meanings:
#### Error Codes
| Descriptive Name | Value | Meaning |
|:----------------------------|---------:|:---------------------------------------------------------|
| `ERROR_NONE` | 0b00000000 | No error. The device is functioning properly, there are no errors present. |
| `ERROR_MAX_CURRENT_EXCEEDED`| 0b00000001 | The maximum current consumption has been exceeded. There might be an overload condition on the device. |
| `ERROR_CURRENT_BELOW_MIN` | 0b00000010 | The current consumption is below the permissible minimum. There may be an issue with the power supply. |
| `ERROR_MAX_TEMP_EXCEEDED` | 0b00000100 | The maximum temperature has been exceeded. The device could overheat. |
| `ERROR_TEMP_BELOW_MIN` | 0b00001000 | The temperature is below the permissible minimum. There is a risk of hypothermia or other temperature-related issues. |
| `ERROR_MAX_HUMI_EXCEEDED` | 0b00010000 | The maximum humidity has been exceeded. This could lead to moisture-related problems. |
| `ERROR_HUMI_BELOW_MIN` | 0b00100000 | The humidity is below the permissible minimum. There is a risk of low humidity. |
Please note that multiple errors can occur simultaneously as the bitmasks can be combined. For example, `ERROR_MAX_TEMP_EXCEEDED | ERROR_MAX_HUMI_EXCEEDED` could indicate that both the maximum temperature and humidity have been exceeded.
#### Error codes ina226Status
| descriptive name error | value | meaning |
|:------------------------------|---------:|:----------|
| INA226_ERR_NONE | 0x0000 | OK
| INA226_ERR_SHUNTVOLTAGE_HIGH | 0x8000 | maxCurrent \* shunt > 80 mV
| INA226_ERR_MAXCURRENT_LOW | 0x8001 | maxCurrent < 0.001
| INA226_ERR_SHUNT_LOW | 0x8002 | shunt < 0.001
| INA226_ERR_NORMALIZE_FAILED | 0x8003 | not possible to normalize.
#### Error codes ina226AlertLimit
| description alert register | value | a.k.a. |
|:---------------------------|-------:| -------:|
| INA226_SHUNT_OVER_VOLTAGE | 0x8000 | SOL |
| INA226_SHUNT_UNDER_VOLTAGE | 0x4000 | SUL |
| INA226_BUS_OVER_VOLTAGE | 0x2000 | BOL |
| INA226_BUS_UNDER_VOLTAGE | 0x1000 | BUL |
| INA226_POWER_OVER_LIMIT | 0x0800 | POL |
| INA226_CONVERSION_READY | 0x0400 | |
3. **`/config`**
- **Output:** HTML page for configuration.
- **Return:** Webpage with form fields for configuring parameters.
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These URL paths form a basic API for interacting with the ESP32 device, allowing users to display real-time data, configure settings, initiate demo modes, and update the firmware.
### Error codes in `errorCode`
The variable `globalError` is used as a bitmask, where each bit represents a specific error condition. Here are the possible error codes and their meanings:
#### `ERROR_NONE` (0b0000000000000000)
No error. The device is functioning properly, there are no errors present.
#### `ERROR_MAX_CURRENT_EXCEEDED` (0b0000000000000001)
The maximum current consumption has been exceeded. There might be an overload condition on the device.
#### `ERROR_CURRENT_BELOW_MIN` (0b0000000000000010)
The current consumption is below the permissible minimum. There may be an issue with the power supply.
#### `ERROR_MAX_TEMP_EXCEEDED` (0b0000000000000100)
The maximum temperature has been exceeded. The device could overheat.
#### `ERROR_TEMP_BELOW_MIN` (0b0000000000001000)
The temperature is below the permissible minimum. There is a risk of hypothermia or other temperature-related issues.
#### `ERROR_MAX_HUMI_EXCEEDED` (0b0000000000010000)
The maximum humidity has been exceeded. This could lead to moisture-related problems.
#### `ERROR_HUMI_BELOW_MIN` (0b0000000000100000)
The humidity is below the permissible minimum. There is a risk of low humidity.
Please note that multiple errors can occur simultaneously as the bitmasks can be combined. For example, `ERROR_MAX_TEMP_EXCEEDED | ERROR_MAX_HUMI_EXCEEDED` could indicate that both the maximum temperature and humidity have been exceeded.
## Functions
### configureIna226()