Havaxer™ 02 is an ESP32-C6 based with network connectivity (wi-fi).

The MCU is the Espressif ESP32-C6-WROOM-1 N8 model and provides:

• 32-bit RISC-V architecture
• 1-core CPU with max 160 MHz
• 8 MB flash
• 2.4 GHz Wi-Fi 6 with an on-board PCB antenna
• Bluetooth 5 (LE)
• Zigbee & Thread

Connections:

• TIO header (twin general purpose input/output, 3.3 V)
• UART header (3.3 V)
• eBUS adapter (24 V) to UART
• I2C display header (3.3 V)
• I2C QWIIC connector
• USB-C connector (programming, debugging and power)
• alternative power supply terminal (7-33 V)

Inputs:

• 6x analog temperature sensor (NTC 10k)
• 2x mains optocoupler (250 VAC)

All inputs are multiplexed to the one MCU pin, so only one programmatically selected input can be read at once.

Outputs:

• 4x mechanical relay (250 VAC, 10 A), one shared with TIO
• 4x solid state relay - triac (220 VAC, 1.2 A)
• 2x driver (5 VDC, 100 mA), one shared with TIO

All outputs are wired via additional hardware gates that need to be opened programmatically.