SMMiner

SMMiner is a Bitcoin mining client written in Go, targeting AonMiner ZX1 USB ASIC devices (based on BM1368). It uses the Stratum protocol to connect to mining pools.

Hardware & Dependencies

• AonMiners ZX1 USB ASIC (FTDI 0403:6015)
• usbreset (Linux, for USB hub auto-reset, also included in usbutils Ubuntu APT)
• libusb
• Zadig (Windows, for WinUSB or libusbK drivers)

Quick Start

# Build (Linux/MacOS)
sudo apt update
sudo apt install build-essential pkg-config libusb-1.0-0-dev
go build .

# Build (Windows on Msys2-Mingw)
CGO_ENABLED=1 go build -ldflags '-linkmode external -extldflags "-static"' .

# Run (solo mining on ckpool)
./smminer -o "stratum+tcp://solo.ckpool.org:3333" -u "YOUR_BTC_ADDRESS" -p "x"

For a complete example with USB hub reset support, see automine.sh.

Linux udev Setup

Run once to allow non-root USB access:

sudo bash miner-rules.sh

Then unplug and replug your devices.

CLI Flags

Flag	Default	Description
-o	(required)	Pool URL (with or without stratum+tcp://)
-u	(required)	Pool worker name / BTC address
-p	x	Pool password
--aon-frequency	150	ASIC frequency in MHz
--aon-job-timer	20	ASIC job timing in milliseconds
--suggest-diff	500	Suggested pool difficulty
--aon-baudrate	1	Baud rate: 1 = 1M, 2 = 1.5M
--aon-usb-hub	1234:0001	USB Hub VID:PID for hard resets
--version	false	Print version and exit

Safety Warnings

• Always stop with CTRL+C — never force-close the terminal window.
• If the miner is force-closed, the ASIC may lock up. Disconnect and reconnect the USB cable to recover.
• The miner may delay shutdown during critical operations — wait for it to finish.

Project Structure

smminer/
├── smminer.go          # Entry point, CLI parsing, loops initialization
├── stratum.go          # Stratum protocol (pool connection, job handling, submission)
├── miner.go            # Miner controllers (AonMiner, CPUMiner -> MinerReceiver)
├── drivers/
│   ├── aonminer.go     # AonMiner ASICs driver
│   ├── cpu.go          # CPU miner (for testing, enable via CPU_MODE constant in smminer.go)
│   └── components/     # BM13xx chip definitions
│       ├── bm13xx.go   # Common chip interface
│       └── bm1368.go   # BM1368 chip constants
├── util/
│   ├── general.go      # Hex/bit utilities, format helpers, SHA256d validator
│   ├── sha256.go       # SHA256 implementation and midstate computation
│   ├── cli.go          # Logging and CLI helpers
│   └── usb.go          # USB serial communication (FTDI)
├── automine.sh         # Example mining script
├── miner-rules.sh      # Linux udev rules setup
├── go.mod
├── go.sum
└── LICENSE

Requires Go 1.24+.

License

MIT — see LICENSE.