Hardware Requirements
Hardware Solution Selection
VerdiBot supports two different hardware solutions, allowing you to choose the appropriate one based on your budget and performance needs.
Solution Comparison
| Item | Raspberry Pi 5 Solution | Raspberry Pi Zero 2W Solution |
|---|---|---|
| Main Controller | Raspberry Pi 5 | Raspberry Pi Zero 2W |
| Performance | High performance, smooth operation | Basic performance, meets basic needs |
| Budget | ~$70-120 | ~$30-60 |
| Power Consumption | Higher | Low power |
| Expandability | Rich interfaces | Limited interfaces |
| Target Users | Users with high performance requirements | Budget-conscious beginners |
Raspberry Pi 5 Solution
Core Hardware
Main Control Module
- Raspberry Pi 5 (4GB/8GB recommended)
- MicroSD Card 64GB Class 10 or higher
- USB-C Power Adapter 5V/3A
Display Module
- Main Display 3.5-inch IPS screen
- Chest Display Small OLED screen
- Screen Adapter Board Compatible with Raspberry Pi interface
Audio Module
- Speaker Small full-range speaker
- Microphone MEMS digital microphone
- Audio Amplifier I2S digital amplifier
Sensor Module
- Gyroscope Six-axis attitude sensor
- Environmental Sensor Temperature and humidity sensor
- RGB LED Ambient lighting effects
Mechanical Structure
3D Printed Parts
- Head shell (left and right halves)
- Body shell (front and rear covers)
- Arm assemblies (4 components each side)
- Base and support components
- Various connectors and mounting parts
Standard Parts
- Screws M2, M3 various lengths
- Bearings Small ball bearings
- Springs Return springs
- Wires Various colored dupont wires
- Connectors JST sockets
Raspberry Pi Zero 2W Solution
Core Hardware
Main Control Module
- Raspberry Pi Zero 2W
- MicroSD Card 32GB Class 10
- USB-C Power Adapter 5V/2.5A
Display Module
- Main Display 2.8-inch IPS screen
- Chest Display Simplified or omitted
- Screen Adapter Board Zero-specific adapter
Audio Module
- Speaker Small speaker
- Microphone Analog microphone
- Audio Output Simplified amplification circuit
Sensor Module
- Basic Sensors Simplified sensor configuration
- LED Basic indicator lights
Simplified Design Notes
The Zero 2W solution simplifies certain features to control cost and complexity:
- Smaller display screen size
- Simplified audio functions
- Reduced sensor configuration
- Some motion functions may be limited
Tool Requirements
Essential Tools
- Soldering Tools: Soldering iron, solder, flux
- Assembly Tools: Screwdriver set, tweezers, wire strippers
- Test Tools: Multimeter, oscilloscope (optional)
- 3D Printer: Or use printing service providers
Recommended Tools
- Heat Gun: For heat shrink tube processing
- Magnifying Glass: Fine soldering assistance
- Anti-static Tools: Anti-static wrist strap, work mat
- Label Maker: Cable identification
PCB Manufacturing
PCB Requirements
- Main Board: Raspberry Pi expansion board
- Display Driver Board: Screen control board
- Audio Board: Audio processing and amplification
- Sensor Board: Various sensor integration
Manufacturing Methods
- DIY: Suitable for users with PCB manufacturing experience
- Contract Manufacturing: Through platforms like LCEDA
- Purchase: Wait for community to provide finished PCBs
Budget Estimation
Raspberry Pi 5 Solution Budget
| Category | Item | Price Range |
|---|---|---|
| Controller | Raspberry Pi 5 + accessories | $60-85 |
| Display | Screens and driver boards | $12-22 |
| Audio | Audio modules | $8-15 |
| Sensors | Various sensors | $8-15 |
| Mechanical | 3D printing and standard parts | $15-30 |
| PCB | Circuit board manufacturing | $15-30 |
| Total | $118-197 |
Raspberry Pi Zero 2W Solution Budget
| Category | Item | Price Range |
|---|---|---|
| Controller | Pi Zero 2W + accessories | $22-38 |
| Display | Simplified screen modules | $6-12 |
| Audio | Basic audio modules | $5-8 |
| Sensors | Basic sensors | $3-6 |
| Mechanical | 3D printing and standard parts | $12-22 |
| PCB | Simplified circuit boards | $8-15 |
| Total | $56-101 |
Procurement Suggestions
Priority Purchase List
- Main Hardware: Raspberry Pi, SD card, power supply
- Display Module: Screen is the most important interface
- 3D Printed Parts: Structural parts need advance preparation
- Basic Tools: Soldering and assembly tools
Recommended Procurement Channels
- Official Channels: Raspberry Pi official distributors
- Electronic Stores: Digikey, Mouser, Adafruit
- Online Marketplaces: Amazon, eBay (from reputable sellers)
- Local Markets: Local electronics markets
Solution Selection Advice
Beginners: Start with Zero 2W solution - lower cost, lower risk Advanced Users: Go directly with Pi 5 solution - complete features, better experience
Important Notes
- Some components may have supply lead times, purchase in advance
- 3D printed parts require high precision, choose suitable printing services
- Budgets are for reference only, actual prices may vary by region and time
Next Step: Getting Started