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Read and control I2C and SPI peripherals on Sipeed boards (LicheeRV Nano, MaixCAM, NanoKVM).
用 Codex 或 Claude 帮你安装 复制这段 Prompt，粘贴到 Codex、Claude 或其他助手里，让它检查 Skill 页面并帮你完成安装。
基于 SOC 职业分类
Set up, manage, and automate Dollar Cost Averaging (DCA) plans. Supports buy (DCA-in) and sell (DCA-out) on any exchange, with optional indicator-gated triggers, per-plan lookback, and Settrade stock share ordering.
Fetch real-time and historical market data from configured exchanges — tickers, OHLCV candles, order books, and market catalogues.
Compute cost basis and profit/loss across exchange accounts — both unrealized (currently held) and realized (from closed trades). Use when the user asks about profit, loss, cost basis, ต้นทุน, กำไร/ขาดทุน, or returns on holdings across one or multiple portfolios.
Query exchange balances and portfolio values across configured exchange accounts — including crypto (Binance, Bitkub, OKX), Thai equities (Settrade/SET), and US equities (Webull).
Compute and interpret technical indicators (SMA, EMA, RSI, MACD, Bollinger Bands, ATR, Stochastic, VWAP) from live OHLCV data.
Place, monitor, and cancel orders on configured exchanges. Includes safety-first order lifecycle, paper trading simulation, and emergency stop.
| name | hardware |
| description | Read and control I2C and SPI peripherals on Sipeed boards (LicheeRV Nano, MaixCAM, NanoKVM). |
| homepage | https://wiki.sipeed.com/hardware/en/lichee/RV_Nano/1_intro.html |
| metadata | {"nanobot":{"emoji":"🔧","requires":{"tools":["i2c","spi"]}}} |
Use the i2c and spi tools to interact with sensors, displays, and other peripherals connected to the board.
# 1. Find available buses
i2c detect
# 2. Scan for connected devices
i2c scan (bus: "1")
# 3. Read from a sensor (e.g. AHT20 temperature/humidity)
i2c read (bus: "1", address: 0x38, register: 0xAC, length: 6)
# 4. SPI devices
spi list
spi read (device: "2.0", length: 4)
Most I2C/SPI pins are shared with WiFi on Sipeed boards. You must configure pinmux before use.
See references/board-pinout.md for board-specific commands.
Common steps:
/etc/init.d/S30wifi stopmodprobe i2c-devdevmem (board-specific)i2c detect and i2c scanconfirm: true — always confirm with the user firstSee references/common-devices.md for register maps and usage of popular sensors:
AHT20, BME280, SSD1306 OLED, MPU6050 IMU, DS3231 RTC, INA219 power monitor, PCA9685 PWM, and more.
| Problem | Solution |
|---|---|
| No I2C buses found | modprobe i2c-dev and check device tree |
| Permission denied | Run as root or add user to i2c group |
| No devices on scan | Check wiring, pull-up resistors (4.7k typical), and pinmux |
| Bus number changed | I2C adapter numbers can shift between boots; use i2c detect to find current assignment |
| WiFi stopped working | I2C-1/SPI-2 share pins with WiFi SDIO; can't use both simultaneously |
devmem not found | Download separately or use busybox devmem |
| SPI transfer returns all zeros | Check MISO wiring and device power |
| SPI transfer returns all 0xFF | Device not responding; check CS pin and clock polarity (mode) |