TINYCONTROL LK4mini 2xI2C (I2C 1-Wire + I2C) RS485 Modbus support

Tinycontrol LAN controller v4 mini

LAN controller with a built-in web server (similar to LK4) for displaying measured values ​​and configuring settings via a web browser.

Key features

• 2× I2C bus for connecting sensors via RJ12 connectors: outer connector only for AM2301B temperature and humidity sensors, middle connector supporting a number of I2C sensors (list below) and also DS18B20 on 1-Wire bus.
• Ethernet communication 10/100Mb with PoE 802.3af power supply.
• Optional 5 V power supply and wireless Wi-Fi communication at a frequency of 2.4 GHz.
• Management via web interface.

Main interface functions accessible via web page

• Display of sensor data in the administrator or user window with customizable dashboard layout.
• Event configuration.
• Timer-based action configuration.
• OLED display configuration.
• MQTT, HTTP client and SNMP protocol configuration.
• Email notification setup.
• Access management, firmware updates.
• Local or network time (NTP) setup.

Sensors supported by I2C bus

• BME280 (humidity, temperature, atmospheric pressure)
• AM2301B, AHT20, AHT25, AM2320, HTS221 (humidity, temperature)
• SPS30, APM10 (particle sensor: PM1, PM2.5, PM4, PM10)
• SCD40, ACD10 (CO2 level sensor)
• 0.96-inch OLED display

Supply voltage: 8-58 V

Power consumption: 0.5 W

PoE power

• yes (802.3af) mode A

• passive mode B with jumper

Interface

• 1× RJ-45 10/100 Mbit/s
• Wi-Fi 802.11n
• RS485 Modbus RTU

Design: mounting on DIN rail (35 mm)

Operating temperature: -20 to +85 °C

Dimensions: 60 × 58 × 16 mm

Weight: 25 g