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TIDM-KNXTHERMOSTAT

Wired KNX Thermostat Reference Design

Design files

TIDM-KNXTHERMOSTAT

Design files

Overview

This design serves as a demonstration platform for the KNX software and hardware offering for MSP430™ microcontrollers (MCUs) from TI and TAPKO Technologies GmbH™. The wired KNX thermostat takes advantage of the ultra-low-power FRAM technology of the MSP430FR5969 MCU to efficiently achieve a thermostat with persistent user settings upon power cycles. The real time clock (RTC) of the MSP microcontroller enables the creation of temperature profiles for automatic temperature adjustment.  Temperature and humidity measurements are collected by TI’s HDC1000 digital humidity sensor and sent to the MSP MCU over an I2C communication line. The Sharp® Memory LCD BoosterPack™ (430BOOST-SHARP96) plug-in module and four switches are used to create a user interface.

Features
  • Fully certified twisted-pair KNX transceiver
  • KNX stack support for TPUART and bit-based TP
  • Interoperability with any certified KNX device
  • Thermostat with setting retention upon power down
  • KAIstack licensing available through TAPKO Technologies
  • Order 3rd party PHY Module and KNX power supply (info@tapko.de)
  • More information on 3rd party USB-to-KNX
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Design files & products

Design files

Download ready-to-use system files to speed your design process.

download Design guide — TIDM-KNXTHERMOSTAT
TIDUB27A.PDF (8430 K)

Reference design overview and verified performance test data

download Schematic — TIDM-KNXTHERMOSTAT
TIDRKI3.PDF (38 K)

Detailed schematic diagram for design layout and components

download Bill of materials (BOM) — TIDM-KNXTHERMOSTAT
TIDRKI4.PDF (198 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

download CAD/CAE symbol — TIDM-KNXTHERMOSTAT
TIDRKI6.ZIP (100 K)

Files used for 3D models or 2D drawings of IC components

download Gerber file — TIDM-KNXTHERMOSTAT
TIDCBU4.ZIP (161 K)

Design file that contains information on physical board layer of design PCB

download PCB layout — TIDM-KNXTHERMOSTAT
TIDRKI5.PDF (634 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

MSP430 microcontrollers

MSP430FR5969 — 16 MHz MCU with 64KB FRAM, 2KB SRAM, AES, 12-bit ADC, comparator, DMA, UART/SPI/I2C, timer

Data sheet: PDF | HTML
Humidity sensors

HDC1000 — Low Power, 3% Accuracy Digital Humidity Sensor with Integrated Temperature Sensor

Data sheet: PDF | HTML

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Hardware

Development kit

MSP-EXP430FR5969 —

MSP430FR5969 LaunchPad™ development kit

The MSP-EXP430FR5969 LaunchPad Development Kit is an easy-to-use microcontroller development board for the MSP430FR5969 MCU. It contains everything needed to start developing quickly on the MSP430FRxx FRAM platform, including on-board emulation for programming, debugging and Energy Measurements. (...)

User guide: PDF | HTML
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Software

Support software

TIDCC84 — TIDM-KNXTHERMOSTAT Software

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Technical documentation

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Type Title Date
* Design guide KNX Thermostat TI Design Guide (Rev. A) Jun. 21, 2016
* Application note Using MSP on KNX Systems Application Report Nov. 03, 2015
Technical article Make building automation systems interoperable with KNX software on ultra-low-powe PDF | HTML Mar. 31, 2016

Related design resources

Hardware development

HARDWARE PROGRAMMING TOOL
MSP-FET — MSP MCU Programmer and Debugger

Support & training

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