Software Specifications

Backend Protocols

Protocol
Authentication
Data formats
HTTP
HTTPS
Basic
Digest
Bearer
Token
Header
Postman
SenML
Postman
User defined template
MQTT
MQTTS
Basic
X.509
SenML
Postman
User defined template

Backend Services

HTTP
HTTP
HTTP
HTTP
HTTP

Limits

Maximum backend connections
3
Maximum backend TLS connections
ESP32: 1, ESP32-S3: 3
Maximum number of metrics
64
Maximum number of I2C multiplexers
6

1-Wire devices

DS18B20
Analog Devices
temperature
TMP1826
Texas Instruments
temperature

I2C devices

BH1750
ROHM
light level
BMP280
Bosch
pressure
temperature
BMP388
Bosch
pressure
temperature
DPS310
Infineon
pressure
temperature
HTU21
TE
temperature
humidity
HTU31
TE
temperature
humidity
LPS22
ST
pressure
temperature
LPS25
ST
pressure
temperature
LPS33
ST
pressure
temperature
LPS35
ST
pressure
temperature
MCP9600
Microchip
temperature
MCP9601
Microchip
temperature
MCP9808
Microchip
temperature
MLX90614
Melexis
temperature
PCA9548A
NXP, Texas Instruments
multiplexer
SCD40
Sensirion
CO2
temperature
humidity
SCD41
Sensirion
CO2
temperature
humidity
SEN50
Sensirion
PM1.0
PM2.5
PM4.0
PM10
SEN54
Sensirion
PM1.0
PM2.5
PM4.0
PM10
temperature
humidity
VOC
SEN55
Sensirion
PM1.0
PM2.5
PM4.0
PM10
temperature
humidity
VOC
NOX
SHT30
Sensirion
temperature
humidity
SHT31
Sensirion
temperature
humidity
SHT35
Sensirion
temperature
humidity
SHT40
Sensirion
temperature
humidity
SHT41
Sensirion
temperature
humidity
TCA9548A
Texas Instruments
multiplexer
TMP117
Texas Instruments
temperature
TSL2591
ams-OSRAM
light level
VEML7700
Vishay
light level