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Device Hardware

Main CPU​

  • ESP32
    • 240 Mhz
    • 32-bit x2 core
    • 320 KB DRAM
    • 200 KB IRAM
    • 16 MB program space
  • Main system processor

Failsafe MCU​

  • ATTiny88
    • 8 Mhz
    • 8-bit x1 core
    • 512 bytes RAM
    • 8 KB program space
  • Monitors heartbeat from CPU to control secondary disable of the SSR and heating element

Peripherals​

Real-Time-Clock​

  • RTC
  • Super-Capacitor
  • Keeps clock time after device power off

Addressable LEDs​

  • RGB Addressable LED
  • WS2812B chipset

Module Temperature​

  • LM75b
  • Count of x2 on PCB

Storage​

Flash​

  • Winbond
  • 128 Mbit (16 MB)

EEPROM​

  • 32 Kbit (4 MB)

PID Functionals​

Thermocouple IC​

  • MAX31850
  • K Type

Solid State Relay (SSR)​

  • High-Power SSR
  • 20 Amp max rated
  • 800 Volt max rated

USB Interface​

  • UART to USB serial bridge
  • For serial communcation with and programming the ESP32 chip
  • USB-C and USB-micro connectors avaiable.

Display Screen​

  • 2" TFT LCD Screen
  • 240x320 pixel resolution