The Raspberry Pi Pico 2 W put real pressure on the ESP32’s default-board status: newer silicon, the Raspberry Pi name and documentation, and a genuinely lovely MicroPython experience, all around seven dollars. So “Pico 2 W or ESP32” is now a fair fight — and most of the comparisons answering it either predate the Pico 2 W entirely or lean on secondhand benchmark claims with no code to back them.
Here’s the honest version, aimed at the question makers actually have: which board for a project that connects to a cloud dashboard.
The short version
- Value newer silicon, clean MicroPython, and the Raspberry Pi ecosystem? Pico 2 W.
- Value wireless maturity, the deepest library/example ecosystem, and proven cloud-IoT patterns? ESP32.
- It’s not about price — they’re within a few dollars. It’s about which ecosystem fits how you like to work.
What the Pico 2 W brings
The Pico 2 W is built on the RP2350, and it’s a genuinely modern part:
- Dual-architecture silicon. The RP2350 carries both Arm Cortex-M33 and RISC-V cores — you pick which to run — which is a first at this price and a sign of how current the design is.
- Excellent MicroPython. The Pico’s flagship path is MicroPython, and it’s among the most pleasant on any microcontroller: clean, well-documented, fast to iterate.
- The Raspberry Pi pedigree. Documentation, longevity, and a foundation behind the board — the same reasons people trust the bigger Pis.
- Programmable I/O (PIO). A standout hardware feature: state machines that generate or capture precise digital signals, which makes bit-banging odd protocols genuinely easy.
What the ESP32 brings
The ESP32’s advantages are the kind that only accrue with time in the field:
- Mature wireless. Wi-Fi is the ESP32’s original purpose, and a decade of IoT projects have hardened the networking stack, the reconnect handling, and the TLS code.
- The deepest ecosystem. More libraries, more examples, more Stack Overflow answers, more cloud-connection tutorials than any comparable board — when you hit a problem, someone has already solved it publicly.
- A family of variants. Need Bluetooth, more compute, or Thread/Zigbee? There’s an ESP32 variant for it — the C3, S3, C6 — where the Pico line is essentially one wireless board.
- Two strong frameworks. Happy in the Arduino framework or ESP-IDF, with a device library that can hide the Wi-Fi, TLS, and reconnect work entirely.
Head to head
| Raspberry Pi Pico 2 W | ESP32 (classic / variants) | |
|---|---|---|
| Silicon | RP2350, Arm + RISC-V | Xtensa or RISC-V, by variant |
| Flagship language | MicroPython | Arduino C++ or ESP-IDF |
| Wireless maturity | Good, newer | Deep, battle-tested |
| Ecosystem size | Growing | The largest in the class |
| Standout feature | PIO (programmable I/O) | Variant choice, BLE, mature TLS |
| Bluetooth | Yes | Yes (classic + BLE) |
| Price (2026) | ~$7 | ~$4–10 |
Two honest notes the freshest incumbents still get wrong: the boards are at price parity, so cost isn’t the tiebreaker; and performance claims you’ll see quoted (interrupt speed, current draw) are often secondhand and untested — measure them yourself for your workload rather than trusting a number copied between articles.
For a cloud dashboard project specifically
This is where the abstract comparison gets concrete. Both boards speak plain HTTPS, so both reach a cloud dashboard without a broker. The difference is how much the ecosystem does for you:
- On the ESP32, a device library can own the Wi-Fi, the TLS handshake, the reconnect logic, and
the control channel — your sketch is just
Nodrix.sendand a handler. The maturity shows up as less code you write and fewer edge cases you hit. Built end to end in Connect an ESP32 over HTTPS. - On the Pico 2 W, MicroPython with
urequestsposts readings cleanly, and the code reads beautifully — you’re just a bit closer to the metal on reconnects and TLS. Built end to end in Pico W to the cloud with MicroPython.
Crucially, the dashboard doesn’t care. Point either board at your own instance and the readings land in the same widgets, the same automations fire, the same alerts go out. You can even run both — a Pico 2 W in one room and an ESP32 in another — reporting to one dashboard, which is a good way to decide with your own hands which you’d rather build on.
The bottom line
Pick the Pico 2 W if you love MicroPython and want current silicon with the Raspberry Pi foundation behind it. Pick the ESP32 if you want the deepest ecosystem and the most mature wireless — which, for a first cloud-connected project, is usually the safer default simply because every problem you’ll hit already has a published answer. They’re close enough in 2026 that you won’t regret either, and since your own instance runs both identically, you can change your mind later without changing your cloud.