Progress Report: ADX Core V0 Design Freeze and PCBA Order Placed

The design phase for the ADX Core V0 is officially complete. I have finalized the schematics and PCB layout, and the project has moved into the manufacturing stage. The PCBA (Printed Circuit Board Assembly) order has been placed with JLCPCB.

Status Update

Schematics: Completed
PCB Layout: Completed
Manufacturing: In progress (Ordered via JLCPCB PCBA service)
Target Grade: Industrial / Robust Control

Project Resources & Documentation

All design files, fabrication data (Gerbers, BOM, CPL), and detailed development history are available on GitHub:

Repository:

https://github.com/Masafuro/ADX/

Note: The repository contains documentation and commit messages in a mix of English and Japanese.

Hardware Specifications

The ADX Core V0 is designed as an "Arduino-like" industrial control board. It introduces a new, standardized industrial form factor—inspired by the ATX philosophy—aimed at creating an ecosystem where enclosures and components are easily interchangeable and professional.

1. Performance Specifications

Item	Specification	Notes
MCU	Microchip ATtiny1616-MNR	8-bit AVR® megaAVR 0-series
Clock Speed	20 MHz (16 MHz recommended)	Internal clock
Logic Voltage	5 V
Memory	Flash 16 KB / SRAM 2 KB / EEPROM 256 B
Operating Temp	-40°C to +105°C	Industrial grade components

2. Power & Protection

Item	Specification	Notes
Nominal Input	DC 12 V / 24 V / 48 V systems
Input Range	DC 7.0 V to 48.0 V
Protection	SMD Chip Fuse / Reverse Polarity
Surge Protection	TVS Diodes	Mounted on power input
Connection	2-pin Push-in Terminal	Pluggable with lock lever

3. Communication & Interface

Item	Specification	Notes
Protocol	RS-485 x 1 channel
Protection	TVS Diodes	A / B line protection
Programming	UPDI	3-pin socket (UPDI, VDD, GND)

4. GPIO Pin Assignment

Connector: 2×10 pin Locked IDC Box Header (Right Angle)

The layout utilizes multiple GND and VDD pins to ensure signal integrity and stable wiring in industrial environments.

Pin	Signal	Notes	Pin	Signal	Notes
1	VDD	5V Out	2	GND	Ground
3	PC3	GPIO	4	PC2	GPIO
5	PC1	GPIO	6	PC0	GPIO
7	GND	Ground	8	PB0	GPIO
9	PB1	GPIO	10	PB2	GPIO
11	PB3	GPIO	12	GND	Ground
13	PB4	GPIO	14	PB5	GPIO
15	GND	Ground	16	PA7	GPIO
17	PA6	GPIO	18	PA5	GPIO
19	GND	Ground	20	VDD	5V Out

5. Mechanical Specifications

Dimensions: 85.0 mm × 60.0 mm
Mounting: 4 x M3 screw holes (corners)
Features: 8.0 mm washer clearance, C3 chamfered edges.

Next Steps

Once the boards arrive from the fab, I will proceed with:

Power rail verification: Testing stability with 24V and 48V inputs.
Firmware upload: Initializing the ATtiny1616 via UPDI.
Stress testing: RS-485 communication reliability in high-noise environments.

ADX Core V0 Design Freeze and PCBA Order Placed