- New
Product description: Tinycontrol tMTH-4 - temperature and humidity meter - Modbus RTU - up to 4 AHT20 / AM2301B sensors
The tMTH-4 is a module designed for monitoring temperature and humidity using AHT20 and AM2301B digital sensors. It is equipped with four independent I2C buses , allowing for the connection of up to four sensors operating simultaneously. Measurement results are shared via the Modbus RTU RS485 protocol , allowing for easy integration with automation systems, PLCs, and BMS systems. The module is compatible with Tinycontrol LK4, LK3.5+, and LK3.9 controllers , and pre-built configuration files enable quick device startup. Additionally, configuration and firmware updates can be conveniently performed via USB.
Tinycontrol tMTH-4 - temperature and humidity meter - Modbus RTU - up to 4 AHT20 / AM2301B sensors.
The module is equipped with four independent I2C buses intended for connecting AHT20 / AM2301B temperature and humidity sensors.
Main features of the meter
- Support for up to 4 AHT20 or AM2301B sensors : four independent I2C buses allow connection of one sensor to each channel
- Modbus RTU communication : temperature and humidity reading via RS485 interface
- Compatibility with LK controllers : full support for LK4, LK3.5+ and LK3.9 devices
- Easy configuration : Modbus address change via function key or USB console
- Firmware update : convenient upload of new software via USB in bootloader mode
- Configurable I2C bus : the ability to change the operating frequency from 10 kHz to 400 kHz
- Ready-made configuration files : quick integration with Tinycontrol LK systems
Technical specifications of the meter
- Power supply: 5V to 12V DC via connector or 5V via USB
- Supported sensors: up to 4 AHT20 or AM2301B sensors
- I2C buses: 4 independent buses via RJ12 connectors
- Communication interface: Modbus RTU RS485
- Configuration interface: USB Serial
- USB transmission speed: 115200 baud
- Default Modbus address: Slave ID 1
- Default I2C frequency: 20 kHz
- I2C Frequency Configuration Range: 10 kHz to 400 kHz
- Compatibility: LK4, LK3.5+ and LK3.9
- Dimensions: 74 x 40 x 30 mm
- Weight: 50 g
Kit contents
- tMTH-4 measurement module
Useful links |
