The TC4+ is an Arduino shield for home coffee roasters. It provides the following features:

  • 4-channel thermocouple interface.
  • 2-channel SSR drivers for AC loads, and single-channel DC driver for DC fan motors.
  • Full compatibility with TC4-based Arduino sketches and established software ecosystem.
  • Highly simplified control of popcorn machine based roasters: On-board voltage regulator and DC PWM driver allow popcorn roaster setup with just the TC4+, a single DC power supply and one solid state relay.
  • Designed with a high degree of flexibility in mind. Wide range of voltage regulators supported; extra I2C headers for displays and other peripherals; retains all TC4 features and full Arduino pinout.
  • Wireless control with optional Bluetooth module.

Unfortunately the TC4+ is currently not available for sale.

TC4+ board side view