hardware

Read and control I2C and SPI peripherals on Sipeed boards (LicheeRV Nano, MaixCAM, NanoKVM).

Repository: GhostPeony/bashgym
Letzte Quellaktivität: 15. Februar 2026 um 19:26
Erkannte Sprache von SKILL.md: Englisch
Sterne: 6
Forks: 0

Installationsoptionen

Standardmäßig ist der Prompt ausgewählt, der zuerst die Quelle prüft. Sie können zu einem direkten Befehl wechseln oder eine lokale Kopie herunterladen.

Mit Codex oder Claude installieren Kopieren Sie diesen Prompt, fügen Sie ihn in Codex, Claude oder einen anderen Assistant ein und lassen Sie die Skill-Seite prüfen und installieren.

Ein direkter Befehl überspringt den Prüf-Prompt. Prüfen Sie die Quelle, bevor Sie ihn ausführen.

npx skills add https://github.com/GhostPeony/bashgym --skill hardware

Der Befehl bleibt in einer Zeile. Scrollen Sie horizontal, um ihn vor dem Kopieren vollständig zu prüfen.

Sie bevorzugen eine lokale Kopie? Laden Sie die Dateien herunter, die SkillsMP derzeit vorliegen.

Quelldateien prüfen

Lesen Sie SKILL.md und alle von SkillsMP angezeigten Begleitdateien, bevor Sie sich für eine Installation entscheiden.

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SKILL.md

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Alle aus diesem Repository ansehen

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"]}}}

Hardware (I2C / SPI)

Use the i2c and spi tools to interact with sensors, displays, and other peripherals connected to the board.

Quick Start

# 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)

Before You Start — Pinmux Setup

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:

Stop WiFi if using shared pins: /etc/init.d/S30wifi stop
Load i2c-dev module: modprobe i2c-dev
Configure pinmux with devmem (board-specific)
Verify with i2c detect and i2c scan

Safety

Write operations require — always confirm with the user first

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)

hardware

Installationsoptionen

Quelldateien prüfen

Hardware (I2C / SPI)

Quick Start

Before You Start — Pinmux Setup

Safety

Hardware (I2C / SPI)

Quick Start

Before You Start — Pinmux Setup

Safety

Common Devices

Troubleshooting

hardware

Quellinformationen

Installationsoptionen

Quelldateien prüfen

Mehr aus diesem Repository

Mehr aus diesem Repository

Hardware (I2C / SPI)

Quick Start

Before You Start — Pinmux Setup

Safety

Hardware (I2C / SPI)

Quick Start

Before You Start — Pinmux Setup

Safety

Common Devices

Troubleshooting