PCB for Office Tea Machines

PCB for Office Tea Machines

PCB for Office Tea Machines

Customer Requirements 📝

Our client was dissatisfied with their existing office tea machine system, as both its design and functionality failed to meet user expectations.
The previous system was mechanically built and offered only limited features. It appeared outdated and could not meet the demands of a modern office environment.

Moreover, leaving tea for extended periods led to a loss of taste and quality, and the system provided no alerts to the users.
The client therefore requested a modern, reliable, and intelligent control board that could address these shortcomings.

Goals for the New System

  • High-quality, user-friendly design
  • Automatic water refilling and water level monitoring
  • Intelligent alert system for stale tea
  • Advanced temperature control and multiple brewing programs

Our Solution 💡

Our team completely redesigned both the hardware and software to create a functional and visually appealing solution.

The new system consists of the following components:

  • Hardware design (PCB / control board)
  • Embedded software development
  • HMI (Human-Machine Interface) screen design
  • Integration of sensors, pump, valve, and heating control

Thanks to this setup, the machine can automatically refill water, intelligently control temperature, monitor the brewing process, and be operated via a user-friendly interface—perfect for the modern office environment.

Technical Details ⚙️

Hardware and PCB Design

The control board includes:

  • Float switch for water level monitoring
  • Temperature sensor for PID regulation
  • Water pump and valve control
  • Thyristor for heating regulation

All digital and high-current lines are isolated to ensure safe operation.
The design is durable, low-maintenance, and suitable for industrial-grade applications.

Motor and Actuator Control

  • The water pump automatically refills the internal tank.
  • The valve enables connection to an external water source.
  • Both components are controlled by the embedded software based on time and water level.
  • Malfunctions are detected, and users are automatically notified.

Sensor Integration

  • The float switch continuously monitors the water level.
  • The temperature sensor provides feedback to the PID algorithm to maintain a constant brewing temperature.
  • An additional timer/software module alerts users if tea has been left standing too long.

Communication

  • Internal communication via digital lines
  • Expandable UART or I²C interfaces for external devices
  • HMI screen communicates with the control board over a fast serial interface

HMI Interface

  • Displays temperature, brewing time, and water level in a clear format
  • Allows selection of different brewing programs (classic, strong, mild)
  • Simplified menus for intuitive operation
  • Alerts for low water levels or stale tea

Embedded Software

  • Synchronized control of all hardware components
  • PID algorithm maintains a constant temperature of 100 °C
  • Dynamic brewing programs based on temperature and time
  • Automatic safety mode in case of errors
  • Seamless integration of control board and HMI software

Results

The new control board significantly enhances the tea machine both functionally and aesthetically.
Users can monitor water level and temperature at any time and safely track the brewing process.
Automatic alerts and brewing programs maximize user-friendliness, while production efficiency, reliability, and maintainability are optimized.

Key Advantages

  • Stable and reliable operation: PID-controlled temperature ensures optimal brewing.
  • Automatic water refilling: Minimal manual intervention thanks to pump and valve integration.
  • Intelligent alert system: Users are notified when tea is too old.
  • User-friendly HMI: Simple and intuitive operation.
  • Low maintenance: Robust hardware and modular design.
  • Modern, attractive design: Optimized for office environments.

The new control board dramatically improves both functionality and aesthetics. Users can monitor water level and temperature anytime, follow the brewing process safely, and benefit from automatic alerts and brewing programs. This enhances user convenience while optimizing production, reliability, and maintenance.

Additionally, the new system ensures long-term user satisfaction: intuitive operation, consistent tea quality, and automated functions greatly reduce maintenance and supervision efforts. The machine operates reliably, efficiently, and comfortably in office environments while conserving energy and maintaining consistent product quality.

Data Privacy 🔒

This project is presented without company or product names for confidentiality reasons.
All illustrations are for functional demonstration purposes only.

🔗 Get in touch with us :
Phone/WhatsApp: +41 76 212 8248
✉️ E-Mail: info@revantechnology.com

For detailed information about our services in electronics development & PCB design:
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