• 1
    Overview

    After using several commercial soldering stations over the years, I decided to build my own integrated soldering station and hot air rework station. The main objective was to create a reliable, feature-rich, and affordable tool suitable for electronics repair, PCB assembly, and everyday bench work. The PCB order from JLCPCB

    The entire system is built around an ATmega microcontroller, which manages temperature control, the user interface, safety features, and system monitoring. Instead of designing two separate controllers, both the soldering iron and hot air station are integrated into a single unit with a common interface.

    The project has been tested extensively during real repair work and has proven to be stable, accurate, and easy to use.

  • 2
    Design Goals

    The project was designed with several objectives in mind:

    • Professional temperature stability
    • Fast heating response
    • Accurate PID temperature control
    • Simple and intuitive user interface
    • Long-term reliability
    • Low manufacturing cost
    • Easy maintenance and future upgrades
  • 3
    Main Features
  • ATmega microcontroller
  • LCD user interface
  • Rotary encoder navigation
  • Independent control of soldering iron and hot air gun
  • PID temperature control
  • Adjustable temperature settings
  • Automatic sleep mode for the soldering iron
  • Automatic standby mode for the hot air gun
  • Cooling cycle after heater shutdown
  • Temperature calibration
  • EEPROM parameter storage
  • Audible feedback
  • Multiple protection functions