Hot Water Dispenser (HWD)

Independent from the main system - a hot water dispenser provides instantaneous temperature regulated water. Electronics provide monitoring and control of water temperature, flow rate and heating system, while displaying the settings on an LCD panel. Advanced systems may include the option of synchronising with a remote control unit.

Our 8 bit micro range (78K/78K0s) is ideally suited to these applications.

Application example:

78K0/K0S Family Device Features

• LCD controller/driver on chip from 5 x 4 up to 48 x 48 Segments - For displaying temperature or control information.
• 10 Bit A/D converter - For water temperature measurements.
• Interrupt and timer processing unit - For water flow measurement
• Key return ports - For keyboard interface
• Open drain ports - For TRIAC control
• Interrupt and timer processing unit - For RF signal decoding function

Related Application Notes
8-Bit Single-Chip Microcontrollers 78K0 OpenTherm Data Link Layer Implementation