Why Soldr?

Most AI tools will give you a confident answer to a hardware question. The honest reason to use Soldr instead is narrower: it checks its answer against the actual part before giving it to you, rather than against what a language model remembers about parts like it.

A small, concrete example of the difference

Take a genuinely common question: which pins on an ESP32 are "strapping pins," and what breaks if you wire something to one of them? It matters because a strapping pin controls how the chip boots — pull it the wrong way with an LED or a sensor and the board can fail to boot or behave unpredictably, and the failure looks nothing like the actual cause.

The real, checkable answer, straight from Espressif's own ESP32 datasheet: GPIO0, GPIO2, GPIO12, and GPIO15 are strapping pins that set the boot mode at power-on and reset. GPIO0 must read HIGH for a normal boot (it's pulled LOW to enter flashing mode); GPIO2 must not be pulled HIGH at boot; GPIO12 sets flash voltage and being pulled HIGH at boot can select the wrong voltage for some flash chips; GPIO15 must not be pulled LOW at boot on many boards. Wire an LED or a resistor divider onto one of these without knowing what it does, and you can get a board that only refuses to boot some of the time — which is a genuinely hard bug to trace back to the real cause.

That answer is publicly documented and correct, and it's exactly the kind of question Soldr checks against the specific board before assigning a pin — not from memory, but from the board's own recorded constraints.

What that actually buys you

• Pins allocated from the real pinout, not a plausible-sounding one. A 30-pin ESP32 and a 38-pin ESP32 don't share a pinout, and an ESP8266 ESP-01S has four usable GPIOs, not thirty — mistakes a memory-based answer makes reliably.
• Compatibility checked before it's suggested, not after you've already bought the parts. The most common silent failure in hobby electronics — two I²C devices sharing a default address — gets caught and resolved with a multiplexer, not discovered when your sensor returns garbage.
• Power sized for the surge, not the running current. A motor, pump, solenoid, or relay coil draws five to ten times its running current at the instant it starts; that's the actual cause behind most "my ESP32 keeps randomly restarting" reports, and it's not a code bug.
• Parts that exist and arrive. Every component named is something Compoden actually stocks in India, at a live price — not a design floating free of anything you can buy.

The honest version, in one line

Soldr's edge isn't a bigger model. It's that the model isn't guessing — it's checking against the real board, the real stock, and real electrical constraints before it answers.

Try it with a genuinely awkward question — a part you already own, a board you're not sure is compatible with something — at soldr.ai.