191 lines
6.4 KiB
Markdown
191 lines
6.4 KiB
Markdown
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# Supported Hardware
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## Single Board Computers (SBCs)
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### Recommended Boards
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| Board | CPU | RAM | Best For | Price |
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|-------|-----|-----|----------|-------|
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| **Orange Pi 5** | RK3588S | 4-16GB | Full LLM, NPU accel | $89-149 |
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| **Raspberry Pi 5** | BCM2712 | 4-8GB | General purpose | $60-80 |
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| **Orange Pi Zero 3** | H618 | 1-4GB | Minimal deployments | $20-35 |
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| **Raspberry Pi 4** | BCM2711 | 2-8GB | Established ecosystem | $45-75 |
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| **Raspberry Pi Zero 2W** | RP3A0 | 512MB | Ultra-compact | $15 |
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| **Rock Pi 4** | RK3399 | 4GB | NPU available | $75 |
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| **NVIDIA Jetson Nano** | Tegra X1 | 4GB | GPU inference | $149 |
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| **BeagleBone Black** | AM3358 | 512MB | Industrial | $55 |
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| **LattePanda 3 Delta** | N100 | 8GB | x86 compatibility | $269 |
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| **ODROID-N2+** | S922X | 4GB | High performance | $79 |
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### Minimum Requirements
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**For UI only (connect to remote botserver):**
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- Any ARM/x86 Linux board
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- 256MB RAM
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- Network connection
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- Display output
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**For local botserver:**
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- ARM64 or x86_64
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- 1GB RAM minimum
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- 4GB storage
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**For local LLM (llama.cpp):**
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- ARM64 or x86_64
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- 2GB+ RAM (4GB recommended)
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- 2GB+ storage for model
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### Orange Pi 5 (Recommended for LLM)
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The Orange Pi 5 with RK3588S is ideal for embedded LLM:
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```
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┌─────────────────────────────────────────────────────────────┐
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│ Orange Pi 5 - Best for Offline AI │
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├─────────────────────────────────────────────────────────────┤
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│ CPU: Rockchip RK3588S (4x A76 + 4x A55) │
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│ NPU: 6 TOPS (Neural Processing Unit) │
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│ GPU: Mali-G610 MP4 │
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│ RAM: 4GB / 8GB / 16GB LPDDR4X │
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│ Storage: M.2 NVMe + eMMC + microSD │
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│ │
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│ LLM Performance: │
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│ ├─ TinyLlama 1.1B Q4: ~8-12 tokens/sec │
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│ ├─ Phi-2 2.7B Q4: ~4-6 tokens/sec │
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│ └─ With NPU (rkllm): ~20-30 tokens/sec │
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└─────────────────────────────────────────────────────────────┘
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```
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## Displays
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### Character LCDs (Minimal)
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For text-only interfaces:
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| Display | Resolution | Interface | Use Case |
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|---------|------------|-----------|----------|
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| HD44780 16x2 | 16 chars × 2 lines | I2C/GPIO | Status, simple Q&A |
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| HD44780 20x4 | 20 chars × 4 lines | I2C/GPIO | More context |
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| LCD2004 | 20 chars × 4 lines | I2C | Industrial |
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**Example output on 16x2:**
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```
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┌────────────────┐
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│> How can I help│
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│< Processing... │
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└────────────────┘
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```
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### OLED Displays
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For graphical monochrome interfaces:
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| Display | Resolution | Interface | Size |
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|---------|------------|-----------|------|
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| SSD1306 | 128×64 | I2C/SPI | 0.96" |
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| SSD1309 | 128×64 | I2C/SPI | 2.42" |
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| SH1106 | 128×64 | I2C/SPI | 1.3" |
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| SSD1322 | 256×64 | SPI | 3.12" |
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### TFT/IPS Color Displays
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For full graphical interface:
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| Display | Resolution | Interface | Notes |
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|---------|------------|-----------|-------|
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| ILI9341 | 320×240 | SPI | Common, cheap |
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| ST7789 | 240×320 | SPI | Fast refresh |
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| ILI9488 | 480×320 | SPI | Larger |
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| Waveshare 5" | 800×480 | HDMI | Touch optional |
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| Waveshare 7" | 1024×600 | HDMI | Touch, IPS |
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| Official Pi 7" | 800×480 | DSI | Best for Pi |
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### E-Ink/E-Paper
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For low-power, readable in sunlight:
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| Display | Resolution | Colors | Refresh |
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|---------|------------|--------|---------|
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| Waveshare 2.13" | 250×122 | B/W | 2s |
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| Waveshare 4.2" | 400×300 | B/W | 4s |
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| Waveshare 7.5" | 800×480 | B/W | 5s |
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| Good Display 9.7" | 1200×825 | B/W | 6s |
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**Best for:** Menu displays, signs, low-update applications
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### Industrial Displays
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| Display | Resolution | Features |
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| Advantech | Various | Wide temp, sunlight |
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| Winstar | Various | Industrial grade |
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| Newhaven | Various | Long availability |
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## Input Devices
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### Keyboards
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- **USB Keyboard** - Standard, any USB keyboard works
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- **PS/2 Keyboard** - Via adapter, lower latency
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- **Matrix Keypad** - 4x4 or 3x4, GPIO connected
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- **I2C Keypad** - Fewer GPIO pins needed
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### Touch Input
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- **Capacitive Touch** - Better response, needs driver
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- **Resistive Touch** - Works with gloves, pressure-based
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- **IR Touch Frame** - Large displays, vandal-resistant
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### Buttons & GPIO
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```
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┌─────────────────────────────────────────────┐
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│ Simple 4-Button Interface │
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├─────────────────────────────────────────────┤
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│ │
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│ [◄ PREV] [▲ UP] [▼ DOWN] [► SELECT] │
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│ │
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│ GPIO 17 GPIO 27 GPIO 22 GPIO 23 │
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│ │
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└─────────────────────────────────────────────┘
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```
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## Enclosures
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### Commercial Options
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- **Hammond Manufacturing** - Industrial metal enclosures
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- **Polycase** - Plastic, IP65 rated
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- **Bud Industries** - Various sizes
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- **Pi-specific cases** - Argon, Flirc, etc.
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### DIY Options
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- **3D Printed** - Custom fit, PLA/PETG
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- **Laser Cut** - Acrylic, wood
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- **Metal Fabrication** - Professional look
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## Power
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### Power Requirements
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| Configuration | Power | Recommended PSU |
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|---------------|-------|-----------------|
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| Pi Zero + LCD | 1-2W | 5V 1A |
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| Pi 4 + Display | 5-10W | 5V 3A |
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| Orange Pi 5 | 8-15W | 5V 4A or 12V 2A |
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| With NVMe SSD | +2-3W | Add 1A headroom |
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### Power Options
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- **USB-C PD** - Modern, efficient
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- **PoE HAT** - Power over Ethernet
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- **12V Barrel** - Industrial standard
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- **Battery** - UPS, solar applications
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### UPS Solutions
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- **PiJuice** - Pi-specific UPS HAT
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- **UPS PIco** - Small form factor
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- **Powerboost** - Adafruit, lithium battery
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