Why this controller vs. the conventional setup

• CAN on the MCU — native classic CAN 2.0 controller on-die. Drop the MCP2515 from your prototyping stack; only a transceiver is needed for the physical layer.
• Curiosity Nano form factor — familiar layout for AVR developers; on-board UPDI debugger over USB.
• Six UARTs, two SPI, two I²C — broad peripheral mix for industrial protocol work.
• On-chip OPAMP — local analog signal conditioning without discrete op-amp chips. Useful for pressure-transducer / load-cell prototypes.
• Zero-Cross Detection — single-phase AC zero-cross handling without a separate comparator network. Pairs with the asynchronous TCD timer for triac / phase-control experiments.
• 12-bit DAC — analog setpoint output for closed-loop control prototypes.
• Operating range: 1.8–5.5 V — native interface to 3.3 V and 5 V logic without level shifters.

Specifications

• MCU: Microchip AVR128DB48 (AVR core, 8-bit)
• Flash / SRAM / EEPROM: 128 KB / 16 KB / 512 B
• Max clock: 24 MHz
• CAN: native, classic CAN 2.0 (CAN-FD not supported — AVR128DB48 family)
• UART / USART: 6
• SPI: 2
• I²C (TWI): 2
• Analog: on-chip OPAMP, Zero-Cross Detection, ADC with PGA, 12-bit DAC
• Timers: TCA (16-bit), TCB (multiple), TCD (asynchronous, motor-control oriented)
• Programming / debug: USB-UPDI on-board; full step-debug in Microchip Studio / MPLAB X
• Form factor: Curiosity Nano
• Origin: Designed and assembled in Pittsboro, NC
• Datasheet: full pinout, current budget, USB connector type, and Arduino board-manager URL available on request — contact us.

FAQ

Compliance & origin

• Origin: Assembled in Pittsboro, North Carolina, USA. Components are sourced from global suppliers; final assembly, firmware, and QC happen in the NC workshop.
• Form factor: Curiosity Nano development board; Arduino-style header layout.
• Support: ticket-based support direct from the people who built the hardware — open a ticket.
• Warranty & certifications: available on request — open a ticket for the current scope.