TINYCONTROL LK4mini I2C + I2C/1-Wire + DIN Holder

Tinycontrol LAN Controller v4 mini I2C + I2C/1-Wire

Compact IoT device for remote monitoring of environmental parameters using digital sensors.

The LK4mini offers an efficient solution for remotely reading and storing data from digital sensors to a server. The device features a built-in web server for displaying measured values and configuring settings through a standard web browser. It is available in two versions: with two I2C buses or with a combination of I2C and RS-485 supporting the Modbus RTU protocol (this model is the version with two I2C buses).

With compact dimensions of 60 × 58 × 16 mm and Power over Ethernet (PoE 802.3af) support, the device is ideal for industrial and commercial applications requiring reliable monitoring of environmental parameters such as temperature, humidity, atmospheric pressure, CO2 concentration, or particulate matter.

• I2C bus for connecting sensors via RJ-12 connector and support for DS18B20 temperature sensors on the 1-Wire bus
• Ethernet 10/100 Mbit/s with PoE 802.3af support (mode A, passive mode B with jumper)
• Optional 5 V power supply
• Support for a wide range of sensors including BME280, AM2301B, SPS30, SCD40, and more
• DIN rail mounting option (35 mm)
• Operating temperature range -20 to +85 °C

Web interface with rich functionality
The device offers a clear web interface with customizable dashboard layout for displaying sensor data. Users can configure events, schedule actions, set up the OLED display, and manage various communication protocols.

Advanced communication options
The LK4mini supports MQTT, HTTP client, and SNMP protocols, allows setting up email notifications, access management, and firmware updates. Time can be synchronized locally or over the network using NTP.

Wide sensor support
The device is compatible with many types of sensors connected via the I2C bus, including sensors for humidity, temperature, atmospheric pressure, particulate matter (PM1, PM2.5, PM4, PM10), and CO2 levels. It also supports connecting a 0.96" OLED display.

BASIC SPECIFICATIONS

Model: I2C + I2C/1-Wire
Supply voltage: 8–58 V
Power consumption: 0.5 W
PoE power: yes (802.3af) mode A, passive mode B with jumper
Interfaces: I2C, I2C/1-Wire, Ethernet 10/100 Mbit/s, Wi-Fi 802.11n
Operating temperature: -20 to +85 °C
Dimensions: 60 × 58 × 16 mm
Weight: 25 g
DIN rail mounting: yes (35 mm)