01
Scattered context
Every session spans schematics, datasheets, stackoverflow, forums, lab notebooks, and whatever the last engineer remembers. None of it is in one place when the board fails.
Upload schematics, BOMs, and board files. Faradyne builds the board context, reasons over rails, buses, test points, and measurements — then guides you to the next best probe instead of another round of guesswork.
Built for bring-up and bench debug — schematics in, next measurement out.
The problem
01
Every session spans schematics, datasheets, stackoverflow, forums, lab notebooks, and whatever the last engineer remembers. None of it is in one place when the board fails.
02
When you don't know where the fault is, you rule out possibilities one by one — and that brute-force hunt can take hours, sometimes weeks.
03
A chatbot can explain I2C. It doesn’t know your pull-ups, your test points, your rail tree, or which sensors share a reset line.
04
The bring-up blockers you hit in week three were visible in the design files all along. By then it’s a schedule slip — or a respin.
How it works
Faradyne turns the files you already have into a live board model, then reasons over it the way a senior engineer would — with evidence.
Schematics, BOM, PCB layout, datasheets. Faradyne parses them into a single model: nets, parts, pins, packages, values.
Rails, buses, test points, and dependencies are resolved into a connectivity and power graph of your specific board.
Symptoms and measurements land on a causal graph. Every reading prunes hypotheses; every assumption is tracked.
One exact next measurement: which test point, what instrument, what to expect, and what each outcome means.
Capabilities
Not a chat window with electronics trivia — a set of engineering capabilities grounded in your design files.
One queryable model of nets, parts, pins, rails, and test points — built from the files you already have.
Knows which rail feeds what, through which regulator, and what dies downstream when it sags.
Distinguishes a dead segment from a dead device from a dead controller — before you pick up a probe.
Thresholds, pinouts, and limits come from the part's datasheet, with the page they came from.
Recommendations name real test points and accessible pins on your board — not idealized nodes.
Failure hypotheses follow the board's actual dependency structure, not a generic troubleshooting tree.
A ranked list of what is most likely to waste bench time, generated before the board arrives.
Each reading you enter reorders the hypothesis list. Evidence in, guesswork out.
Faradyne is a debugging instrument, not a design checker. It does not replace SI/PI analysis, thermal simulation, EMC testing, or DRC — it finds what will waste your bring-up time.
Why not a chatbot
General models are useful for theory. Debugging a specific board needs the board.
No board graph — reasons from generic topology
Board-aware — reasons over your nets, rails, and parts
No knowledge of your test points
Names the exact test point or pin to probe
Measurements pasted as free text, then forgotten
Structured measurements that prune the hypothesis space
No provenance — confident numbers from nowhere
Every claim tagged: verified, measured, assumed, unverified, or in conflict
Restarts from zero every session
Board model, measurements, and findings persist across sessions
A real session
This is what Faradyne actually returns — concise, board-specific, and honest about uncertainty. Step through the session.
I2C1 is completely dead. The MCU is running. None of the sensors respond.
U9, U10, U11 share SDA/SCL, pull-ups R12/R13, the 3V3 rail, and isolator U7. A shared dependency is far more likely than three simultaneous device faults.
Response grounded in: schematic rev B · BOM · U7 isolator datasheet p.7
Before the bench
Faradyne reviews the design files for the things most likely to waste bring-up time — unverifiable targets, missing test access, datasheet conflicts — and ranks them.
RISK REGISTER · 4 OPEN FINDINGS
| Finding | Evidence | Bring-up impact | Severity | Trust | Action |
|---|---|---|---|---|---|
| +5 V target unverifiable | FB divider uses an assumed R_bot | Expected-vs-measured on the rail will be unreliable | TIME-SINK | ASSUMED | Confirm R_bot value before release |
| U4 EN strap conflicts with datasheet | Schematic leaves EN floating; datasheet p.14 requires a pull-up | 3V3 rail may never come up | BLOCKER | CONFLICT | Resolve EN strap before first power-on |
| RESET_N has no test access | Net routed on inner layers only, no pad or via exposed | Reset release can't be confirmed without rework | TIME-SINK | VERIFIED | Add a probe wire at R31 during assembly |
| I2C2 pull-ups on isolated side only | R24/R25 sit after isolator U8; side 1 has no pull-up path | Side-1 master sees a floating bus | BLOCKER | VERIFIED | Review isolator biasing before bring-up |
Every finding links back to the schematic net, BOM line, or datasheet page it came from.
Why believe it
If an input is uncertain, the finding says confirm first. No bare numbers. No fake certainty.
The five states
In practice
Claim 01
VERIFIEDU4 V_OUT = 3.30 V ± 2%
TLV75533 datasheet · p.14
Claim 02
ASSUMED+5 V expected at TP1 = 4.98 V
FB divider: R_top 10 kΩ (BOM) · R_bot assumed 1.6 kΩ
→ Confirm R_bot before trusting expected-vs-measured.
Engineers don’t need an oracle. They need an instrument that shows its work.
The team
Faradyne is built by the pair a hard bring-up actually needs — the electrical engineer who lives at the bench, and the computer scientist who turns board context into a reasoning engine.
CO-FOUNDER · CEO
ELECTRICAL ENGINEERING
The electrical engineer. Shloka owns the bench truth: how boards actually fail, which measurement settles a hypothesis, and what an engineer actually needs next when a rail won't come up. She keeps every Faradyne finding honest to real hardware.
LinkedInCO-FOUNDER · CTO
COMPUTER SCIENCE
The computer scientist. Luv builds the engine: the board model, the causal graph, and the measurement-driven reasoning that turns schematics, BOMs, and datasheets into the next best probe.
LinkedInEarly access
We're onboarding a small group of hardware teams this summer. Tell us what you're debugging and we'll reach out.