Custom ASIC Prototype Emulator
Custom ASIC Prototype Emulator: Build a 4‑Bit Processor Using RP2040 PIO State Machines
Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.
This kit turns a Raspberry Pi Pico 2 into a hardware emulator for a 4‑bit processor, letting you define and run a custom instruction set without an FPGA. You’ll model fetch‑decode‑execute cycles using the PIO state machines, giving you a tangible way to explore pipelining, instruction encoding, and microcode. Perfect for final‑year B.Tech and M.Tech projects, you can prototype ASIC concepts, test novel ISAs, and observe deterministic execution on real hardware.
What You'll Build
A fully functional 4‑bit processor with a custom instruction set of your design, able to run programs and control the onboard LEDs and OLED display. The processor emulates realistic behaviour: you’ll see each instruction’s execution on the display, and interact with the system via tactile buttons to change program flow or input data. The enclosed ABS case turns your prototype board into a standalone demonstration unit.
What You'll Learn
- Programming the RP2040 PIO state machines for hardware‑like behaviour and deterministic cycle‑accurate emulation
- Designing and encoding a custom instruction set (ISA) for a 4‑bit CPU, balancing opcodes and addressing modes
- Implementing fetch‑decode‑execute logic in a deterministic timing model using PIO assembly
- Interfacing peripherals (OLED, buttons, LEDs) via a processor bus, treating them as memory‑mapped I/O
Kit Contents
| Component | Quantity |
|---|---|
| Raspberry Pi Pico 2 | x1 |
| 0.96in OLED | x1 |
| Tactile Button | x8 |
| 5mm LED | x8 |
| 220Ω Resistors | x10 |
| 10kΩ Resistors | x10 |
| PCB Prototype Board | x3 |
| ABS Enclosure Box | x1 |
| Micro USB Cable | x1 |
| Soldering Iron | x1 |
| Solder Wire | x1 |
Why Buy This Kit Instead of Sourcing Parts Separately
| Factor | Sourcing Separately | Compoden Kit |
|---|---|---|
| Compatibility checks | You verify every part | Pre-tested as a system |
| Build support | Forums and scattered tutorials | AI companion trained on this exact project |
| Time to first working build | Days of debugging | Hours, with step-by-step guidance |
| Shipping coordination | Multiple sellers, multiple delays | One shipment from Bengaluru in 3-5 days |
Who This Kit Is For
Engineering students and researchers who want hands‑on processor design experience without the complexity of FPGA tools. This kit is ideal for B.Tech ECE/EEE final‑year projects, M.Tech VLSI or microelectronics coursework, and Smart India Hackathon hardware tracks. Also valuable for IIT/NIT/VIT/BITS students exploring custom computing elements in advanced digital design labs and ATL Tinkering Lab mentors looking for a high‑complexity capstone challenge.
Built and Backed by Compoden
Every Compoden kit ships with an AI build companion trained on this exact project — accessible via a QR code on the box, with WhatsApp and email backup. We've spent 10 years building projects for makers, schools, and institutions across India. If a part fails because of a manufacturing defect, replace it free within 7 days.
What if I get stuck during the build?
Use the AI companion on the QR code for instant debugging. You can also send a WhatsApp message with a photo of your setup and get expert guidance within hours.
Do I need to know Verilog or FPGA design?
No – this kit uses the RP2040 PIO, which you program in MicroPython or C with PIO assembly. All emulation is done with software‑defined hardware, no synthesis required.
Can I define my own instruction set?
Yes – the kit is fully programmable. You’ll write the PIO state machine code that executes your custom instructions. The AI companion provides templates and tutorials to get started quickly.
What kind of programs can I run on the 4‑bit processor?
You can run short assembly programs that control the LEDs and OLED, implement simple arithmetic or branching, and experiment with memory‑mapped I/O. The 4‑bit width adds the same constraints real‑world early processors faced.
FPGA-like behavioural emulation using RP2040 PIO. Models a custom 4-bit processor instruction set in hardware.
What's in this kit
Choose your assembly option:
- Soldering Kit — 25W soldering iron, 60/40 solder wire, flux, and small perfboard for permanent assembly.
- Breadboard Combo — 800-point full-size breadboard with 65-piece jumper wire pack for solderless prototyping.
Shipping Information
- Prepaid Orders: ₹75 for orders up to ₹999, FREE shipping above ₹999
- COD Orders: ₹125 shipping + ₹50 COD fee = ₹175 total
- Delivery Timeline: Dispatch in 1-2 days, delivery in 2-7 days depending on location
Returns & Warranty
- 7-Day Return: Manufacturing defects only (approval required)
- Warranty: 7 days from delivery
- Non-Returnable: Batteries, consumables, cut wires, clearance items