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Smart Thermostat

Overview

The demand for simple smart thermostat platforms is growing due to the rise of IoT-enabled HVAC systems. This system implements standard features of household thermostats while adding IoT capabilities for remote monitoring of HVAC systems and room conditions. These enhancements have led to increased adoption in both residential and industrial spaces.

System Benefits:

  • The MCU with sigma-delta ADC enables energy measurement.
  • Dual bank flash supports on-the-go software updates.
  • Certified ultra-low power Wi-Fi module for smart connectivity simplifies design and accelerates time to market.
  • MCU evaluation board with QuickConnect IoT Pmod™ boards facilitates rapid prototyping.

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4:3 ratio Sheet.1 Sheet.2 Sheet.3 Sheet.4 AS065 AS065 AS065 Flyback Flyback Flyback LDO LDO LDO Temperature & Humidity Sensor Temperature & Humidity Sensor Temperature & Humidity Sensor Wi-Fi Wi-Fi Wi-Fi RS-485 Transceivers RS-485 Transceivers RS-485 Transceivers Motion Sensor Motion Sensor Motion Sensor LCD Display LCD Display LCD Display AC Current Sensor AC Current Sensor AC Current Sensor Battery Li-ion.154 Sheet.25 Sheet.26 Sheet.27 Sheet.28 Sheet.29 Sheet.30 Sheet.31 Ground (earth) Sheet.39 Sheet.40 Sheet.41 Sheet.42 AC Power Source Sheet.45 Alternating Current Sheet.47 Sheet.48 Sheet.50 Sheet.51 Sheet.52 Sheet.53 Sheet.54 Sheet.55 Connector 1.158 Connector 1.158.57 Sheet.58 Sheet.59 Phase Phase Phase Neutral Neutral Neutral AC Supply AC Supply AC Supply Sheet.63 12V 12V 12V Sheet.67 Sheet.68 Sheet.69 Sheet.70 Sheet.71 Connector 1.158.72 Sheet.73 Sheet.74 Connector 1.75 Sheet.76 Sheet.77 Sheet.78 3.3V 3.3V 3.3V Sheet.80 3.3V 3.3V 3.3V 2 2 2 2 Sheet.84 3.3V 3.3V 3.3V 3.3V 3.3V 3.3V 2 2 2 2 Sheet.89 2 2 2 2 Sheet.92 Vertical Wire Bundle.93 2 2 2 Sheet.95 Sheet.96 RS485 RS-485 RS-485 Sheet.98 Phase Phase Phase Neutral Neutral Neutral MCU MCU MCU MCU 24bit DSAD 24bit DSAD 24bit DSAD VDD VDD VDD I2C I2C I2C UART UART UART UART UART UART I2C I2C I2C LCDC LCDC LCDC RTC RTC RTC

Flyback

Flyback & Forward Controllers

LDO

Linear Regulators (LDO)

MCU

RA Arm Cortex-M MCUs
RA Arm Cortex-M MCUs

Wi-Fi

Low Power Wi-Fi
Low Power Wi-Fi

RS-485 Transceivers

RS-485/422 with Enhanced ESD Protection

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