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If you’re searching for RP2040 (Raspberry Pi’s dual-core Cortex‑M0+ microcontroller), here are strong picks depending on whether you want the raw chip, a Pico-style dev board, or a project-ready RP2040 device.

Core RP2040 options

• RP2040 Microcontroller (QFN‑56 chip, dual-core, up to 133MHz) — great if you’re designing your own PCB. $0.69
• Raspberry Pi Pico W (RP2040 + Wi‑Fi) — the go-to general dev board when you want wireless. $9.58
• Raspberry Pi Pico WH (Pico W with headers pre-soldered) — best for breadboards/quick starts. $12.95

Compact / Pico-like RP2040 boards (USB‑C and small form factors)

• RP2040-Zero, a Pico-like MCU Board Based on Raspberry Pi MCU RP2040, Mini ver. (ultra-compact, USB‑C) — ideal for tight builds. $5.70
• RP2040-Plus, a Pico-like MCU Board Based on Raspberry Pi MCU RP2040, Plus ver. (USB‑C, LiPo charge/discharge, 4MB flash) — good for battery-powered projects. $22.53

Maker-friendly “Arduino-sized” RP2040 boards

• Adafruit Feather RP2040 (Feather ecosystem, 8MB flash) — lots of add-on compatibility. $23.31
• Adafruit Feather RP2040 with USB Type A Host (built-in USB‑A host port) — connect keyboards/mice/USB devices directly. $35.25
• SparkFun Pro Micro - RP2040 (Pro Micro form factor) — handy for HID/keyboard-style builds. $28.80
• Adafruit KB2040 - RP2040 Kee Boar Driver (USB‑C, 8MB flash, keyboard-focused Pro Micro footprint) — great for custom mechanical keyboards. $18.90

RP2040 project boards (ready-to-use devices)

• Adafruit MACROPAD RP2040 Bare Bones - 3x4 Keys + Encoder + OLED (3×4 keys, rotary encoder, OLED) — build a programmable macro pad. $68.19
• Adafruit MacroPad RP2040 Starter Kit - 3x4 Keys + Encoder + OLED (complete kit) — best if you want everything in one box. $97.45
• Motor 2040 - Quad Motor Controller (RP2040-powered 4‑channel motor+encoder controller) — for robotics and motion control. $51.78
• RP2040 Stamp (solderable module, 8MB flash, includes power/charge circuitry) — great for embedding RP2040 into custom hardware. $27.60