The wireless smart thermostat reference design can be used with home automation and control by app  with Wi-Fi.  Furthermore, the wireless smart thermostat provides three additional functions such as touch keys control system, LCD information includes temperature, battery level, and time, embedded BC1.2 standard for smart charger.

• Feature
  

  -	Saves BOM cost and simplifies PCB layout
  	- Three-in-one MCU: system control, LCD display control, and touch key control
  	- LCD controller built-in DH1/DH2 capacitance and charge pump features to support VLCD
  	- Crystal-less USB2.0 FS
  -	USB Smart Charger
  	- Battery Charge Standard 1.2
  -	Easy to Set
  	- To manage and control devices through Wi-Fi from Mobile
  	- Supports NuTool-NuSenadj/LCD view to configure touch key and LCD menu

• Specifications
  

  M258 (32-bit Arm® Cortex®-M23)
  -	Touch key controller
  	- IEC 61000-4-6 10 Vrms
  	- 2 mm waterproof
  	- High touch sensitivity and high-noise immunity
  -	LCD controller
  	- Display remain in power down mode
  	- Driver up to 10 cm x 10 cm panel

• System Block Diagram