CHESTER Clime
This article describes the core functionality, hardware description, and example JSON message of the catalog application CHESTER Clime.
When upgrading firmware from v1.x.x to version v2.0.0 and newer - it is necessary to backup configuration.
Some of the basics are not provided, as they are common for all CHESTER catalog applications. For example, see the article Platform Management on how to work with the interactive console.
Application Overview
CHESTER Clime is an environmental sensor that samples, aggregates, and sends measured variables.
Application Variants
CHESTER Clime can be ordered in one of these variants:
CHESTER Clime
The catalog application CHESTER Clime measures:
- Temperature
- Humidity
The hardware of this application consists of the following ordering codes:
CHESTER-M-BCGLS- Standard mainboardCHESTER-S2- External hygrometerCHESTER-E1-LP- Enclosure with SMA pigtail
See Ordering Codes for more details.
Firmware build shield options: ctr_lte ctr_s2
CHESTER Clime Z
The catalog application CHESTER Clime Z measures:
- Temperature
- Humidity
The hardware of this application consists of the following ordering codes:
CHESTER-M-BCGLS- Standard mainboardCHESTER-Z- Backup moduleCHESTER-S2- External hygrometerCHESTER-E1-LP- Enclosure with SMA pigtail
See Ordering Codes for more details.
Firmware build shield options: ctr_lte ctr_s2 ctr_z
CHESTER Clime IAQ
The catalog application CHESTER Clime IAQ measures:
- Temperature
- Humidity
- Illuminance
- CO₂ concentration
- Atmospheric pressure
- Motion detection with PIR sensor
Also, the application reports push-button events and provides acoustic and optical feedback.
The hardware of this application consists of the following ordering codes:
CHESTER-M-BCGLS- Standard mainboardCHESTER-S1-BCMP- Integrated multi-sensorCHESTER-E7-LP- Enclosure with SMA pigtail
See Ordering Codes for more details.
Firmware build shield options: ctr_lte ctr_s1
CHESTER Clime 1W
The catalog application CHESTER Clime 1W supports multiple external DS18B20 1-Wire temperature sensors.
The hardware of this application consists of the following ordering codes:
CHESTER-M-BCGLS- Standard mainboardCHESTER-E8-LP- Enclosure with 8 cable glands
See Ordering Codes for more details.
Firmware build shield options: ctr_lte ctr_ds18b20
CHESTER Clime RTD
The catalog application CHESTER Clime RTD supports two external Pt1000 4-wire temperature sensors.
The hardware of this application consists of the following ordering codes:
CHESTER-M-BCGLS- Standard mainboardCHESTER-X3A:A- 2x Pt100/Pt1000 interfaceCHESTER-E7-LP- Enclosure with SMA pigtail
See Ordering Codes for more details.
Firmware build shield options: ctr_lte ctr_rtd_a
Measurement and Behavior
- All sensors are sampled with a configurable period (parameter
interval-sample). - Samples are then aggregated in the configurable interval. Minimum, maximum, average, and median are computed from buffered samples for each sensor (parameter
interval-aggreg). - Each aggregated values have its timestamps and are sent in a batch in a report interval period (parameter
interval-report).
When equipped with CHESTER-S1. The device also has a push button. When the button is pressed, the blue LED turns on for a second. Also, the beep sound is played from the integrated acoustic buzzer for audible confirmation of the push button press.
Default Configuration
This is the default configuration (printed using the app config show command):
app config interval-sample 60
app config interval-aggreg 300
app config interval-report 1800
Specific Commands
You can easily explore the whole command tree structure - start with the help command.
To apply a new configuration, you need to call config save, which applies the new configuration parameters and reboots the device.
Command to set sample interval in seconds:
app config interval-sample <1-86400>
Command to set aggregate interval in seconds:
app config interval-aggreg <1-86400>
Command to set report interval in seconds:
app config interval-report <30-86400>
Firmware
When upgrading firmware from v1.x.x to version v2.0.0 and newer - it is necessary to backup configuration.
The latest firmware is available in Catalog Applications Firmware chapter.
Example JSON Message
In this example JSON you can see data from all three variants
- CHESTER Clime has its own
hygrometerstructure. - CHESTER Clime IAQ has its own
iaq_sensorstructure. - CHESTER Clime 1W has its own
w1_thermometersstructure. - CHESTER Clime RTD has its own
rtd_thermometersstructure.
In each structure with the current configuration, there are six aggregated values. Each aggregated value has its timestamp and is computed from multiple samples, and min, max, avg, and mdn values are calculated.
{
"message": {
"version": 1,
"sequence": 0,
"timestamp": 1668859482
},
"attribute": {
"vendor_name": "HARDWARIO",
"product_name": "CHESTER-M",
"hw_variant": "CGLS",
"hw_revision": "R3.2",
"fw_name": "CHESTER Clime",
"fw_version": "v1.4.0",
"serial_number": "2159018267"
},
"system": {
"uptime": 680967,
"voltage_rest": 3.7,
"voltage_load": 3.66,
"current_load": 36
},
"network": {
"imei": 351358815180770,
"imsi": 901288910018982,
"parameter": {
"eest": 7,
"ecl": 0,
"rsrp": -90,
"rsrq": -8,
"snr": 9,
"plmn": 23003,
"cid": 939040,
"band": 20,
"earfcn": 6447
}
},
"thermometer": {
"temperature": 22.18
},
"accelerometer": {
"acceleration_x": 0.07,
"acceleration_y": -0.16,
"acceleration_z": 9.65,
"orientation": 2
},
"iaq_sensor": {
"temperature": {
"measurements": [
{
"timestamp": 1668857742,
"min": 22.5,
"max": 22.54,
"avg": 22.51,
"mdn": 22.52
},
{
"timestamp": 1668858042,
"min": 22.49,
"max": 22.5,
"avg": 22.49,
"mdn": 22.49
},
{
"timestamp": 1668858342,
"min": 22.47,
"max": 22.48,
"avg": 22.47,
"mdn": 22.47
},
{
"timestamp": 1668858642,
"min": 22.47,
"max": 22.49,
"avg": 22.48,
"mdn": 22.48
},
{
"timestamp": 1668858942,
"min": 22.46,
"max": 22.5,
"avg": 22.48,
"mdn": 22.48
},
{
"timestamp": 1668859242,
"min": 22.45,
"max": 22.47,
"avg": 22.46,
"mdn": 22.47
}
]
},
"humidity": {
"measurements": [
{
"timestamp": 1668857742,
"min": 55.19,
"max": 55.91,
"avg": 55.52,
"mdn": 55.53
},
{
"timestamp": 1668858042,
"min": 55.84,
"max": 56.5,
"avg": 56.14,
"mdn": 56.07
},
{
"timestamp": 1668858342,
"min": 56.01,
"max": 56.2,
"avg": 56.09,
"mdn": 56.07
},
{
"timestamp": 1668858642,
"min": 55.55,
"max": 56.1,
"avg": 55.79,
"mdn": 55.74
},
{
"timestamp": 1668858942,
"min": 55.39,
"max": 55.86,
"avg": 55.6,
"mdn": 55.59
},
{
"timestamp": 1668859242,
"min": 55.1,
"max": 56.29,
"avg": 55.69,
"mdn": 55.61
}
]
},
"illuminance": {
"measurements": [
{
"timestamp": 1668857742,
"min": 4,
"max": 5,
"avg": 4,
"mdn": 4
},
{
"timestamp": 1668858042,
"min": 4,
"max": 6,
"avg": 4,
"mdn": 5
},
{
"timestamp": 1668858342,
"min": 5,
"max": 5,
"avg": 5,
"mdn": 5
},
{
"timestamp": 1668858642,
"min": 4,
"max": 6,
"avg": 5,
"mdn": 5
},
{
"timestamp": 1668858942,
"min": 5,
"max": 7,
"avg": 5,
"mdn": 6
},
{
"timestamp": 1668859242,
"min": 4,
"max": 5,
"avg": 4,
"mdn": 5
}
]
},
"altitude": {
"measurements": [
{
"timestamp": 1668857742,
"min": 244,
"max": 245,
"avg": 244,
"mdn": 244
},
{
"timestamp": 1668858042,
"min": 244,
"max": 245,
"avg": 244,
"mdn": 245
},
{
"timestamp": 1668858342,
"min": 244,
"max": 245,
"avg": 244,
"mdn": 245
},
{
"timestamp": 1668858642,
"min": 244,
"max": 245,
"avg": 244,
"mdn": 244
},
{
"timestamp": 1668858942,
"min": 244,
"max": 245,
"avg": 244,
"mdn": 244
},
{
"timestamp": 1668859242,
"min": 244,
"max": 245,
"avg": 244,
"mdn": 244
}
]
},
"pressure": {
"measurements": [
{
"timestamp": 1668857742,
"min": 98419,
"max": 98425,
"avg": 98422,
"mdn": 98423
},
{
"timestamp": 1668858042,
"min": 98415,
"max": 98418,
"avg": 98416,
"mdn": 98416
},
{
"timestamp": 1668858342,
"min": 98412,
"max": 98417,
"avg": 98414,
"mdn": 98415
},
{
"timestamp": 1668858642,
"min": 98417,
"max": 98422,
"avg": 98419,
"mdn": 98418
},
{
"timestamp": 1668858942,
"min": 98416,
"max": 98421,
"avg": 98419,
"mdn": 98421
},
{
"timestamp": 1668859242,
"min": 98416,
"max": 98422,
"avg": 98419,
"mdn": 98420
}
]
},
"co2_conc": {
"measurements": [
{
"timestamp": 1668857742,
"min": 399,
"max": 400,
"avg": 399,
"mdn": 400
},
{
"timestamp": 1668858042,
"min": 399,
"max": 400,
"avg": 399,
"mdn": 399
},
{
"timestamp": 1668858342,
"min": 399,
"max": 400,
"avg": 399,
"mdn": 400
},
{
"timestamp": 1668858642,
"min": 399,
"max": 400,
"avg": 399,
"mdn": 399
},
{
"timestamp": 1668858942,
"min": 398,
"max": 399,
"avg": 398,
"mdn": 399
},
{
"timestamp": 1668859242,
"min": 399,
"max": 400,
"avg": 399,
"mdn": 399
}
]
},
"motion_count": {
"measurements": [
{
"timestamp": 1668857742,
"value": 0
},
{
"timestamp": 1668858042,
"value": 0
},
{
"timestamp": 1668858342,
"value": 0
},
{
"timestamp": 1668858642,
"value": 0
},
{
"timestamp": 1668858942,
"value": 0
},
{
"timestamp": 1668859242,
"value": 0
}
]
},
"press_count": {
"measurements": [
{
"timestamp": 1668857742,
"value": 0
},
{
"timestamp": 1668858042,
"value": 0
},
{
"timestamp": 1668858342,
"value": 0
},
{
"timestamp": 1668858642,
"value": 0
},
{
"timestamp": 1668858942,
"value": 0
},
{
"timestamp": 1668859242,
"value": 0
}
]
}
},
"hygrometer": {
"temperature": {
"measurements": [
{
"timestamp": 1668857742,
"min": 22.07,
"max": 22.25,
"avg": 22.17,
"mdn": 22.16
},
{
"timestamp": 1668858042,
"min": 22.05,
"max": 22.23,
"avg": 22.15,
"mdn": 22.15
},
{
"timestamp": 1668858342,
"min": 22.04,
"max": 22.16,
"avg": 22.09,
"mdn": 22.07
},
{
"timestamp": 1668858642,
"min": 22.08,
"max": 22.19,
"avg": 22.11,
"mdn": 22.09
},
{
"timestamp": 1668858942,
"min": 22.07,
"max": 22.16,
"avg": 22.12,
"mdn": 22.12
},
{
"timestamp": 1668859242,
"min": 22.07,
"max": 22.15,
"avg": 22.12,
"mdn": 22.14
}
]
},
"humidity": {
"measurements": [
{
"timestamp": 1668857742,
"min": 54.78,
"max": 55.31,
"avg": 55.1,
"mdn": 55.12
},
{
"timestamp": 1668858042,
"min": 55.12,
"max": 56.16,
"avg": 55.55,
"mdn": 55.52
},
{
"timestamp": 1668858342,
"min": 55.24,
"max": 55.56,
"avg": 55.41,
"mdn": 55.4
},
{
"timestamp": 1668858642,
"min": 54.89,
"max": 56.03,
"avg": 55.33,
"mdn": 55.2
},
{
"timestamp": 1668858942,
"min": 54.75,
"max": 56.73,
"avg": 55.39,
"mdn": 54.98
},
{
"timestamp": 1668859242,
"min": 54.91,
"max": 55.83,
"avg": 55.26,
"mdn": 55.18
}
]
}
},
"w1_thermometers": [
{
"serial_number": 170787196,
"measurements": [
{
"timestamp": 1668857742,
"min": 22.18,
"max": 22.25,
"avg": 22.23,
"mdn": 22.25
},
{
"timestamp": 1668858042,
"min": 22.18,
"max": 22.18,
"avg": 22.18,
"mdn": 22.18
},
{
"timestamp": 1668858342,
"min": 22.18,
"max": 22.18,
"avg": 22.18,
"mdn": 22.18
},
{
"timestamp": 1668858642,
"min": 22.12,
"max": 22.18,
"avg": 22.17,
"mdn": 22.18
},
{
"timestamp": 1668858942,
"min": 22.18,
"max": 22.18,
"avg": 22.18,
"mdn": 22.18
},
{
"timestamp": 1668859242,
"min": 22.18,
"max": 22.18,
"avg": 22.18,
"mdn": 22.18
}
]
}
],
"rtd_thermometers": [
{
"channel": 1,
"measurements": [
{
"timestamp": 1668857742,
"min": 22.18,
"max": 22.25,
"avg": 22.23,
"mdn": 22.25
},
{
"timestamp": 1668858042,
"min": 22.18,
"max": 22.18,
"avg": 22.18,
"mdn": 22.18
},
{
"timestamp": 1668858342,
"min": 22.18,
"max": 22.18,
"avg": 22.18,
"mdn": 22.18
},
{
"timestamp": 1668858642,
"min": 22.12,
"max": 22.18,
"avg": 22.17,
"mdn": 22.18
},
{
"timestamp": 1668858942,
"min": 22.18,
"max": 22.18,
"avg": 22.18,
"mdn": 22.18
},
{
"timestamp": 1668859242,
"min": 22.18,
"max": 22.18,
"avg": 22.18,
"mdn": 22.18
}
]
},
{
"channel": 2,
"measurements": [
{
"timestamp": 1668857742,
"min": 22.18,
"max": 22.25,
"avg": 22.23,
"mdn": 22.25
},
{
"timestamp": 1668858042,
"min": 22.18,
"max": 22.18,
"avg": 22.18,
"mdn": 22.18
},
{
"timestamp": 1668858342,
"min": 22.18,
"max": 22.18,
"avg": 22.18,
"mdn": 22.18
},
{
"timestamp": 1668858642,
"min": 22.12,
"max": 22.18,
"avg": 22.17,
"mdn": 22.18
},
{
"timestamp": 1668858942,
"min": 22.18,
"max": 22.18,
"avg": 22.18,
"mdn": 22.18
},
{
"timestamp": 1668859242,
"min": 22.18,
"max": 22.18,
"avg": 22.18,
"mdn": 22.18
}
]
}
]
}