Industrial Hardware Engineering · Bangladesh → EU/US time zones

Industrial electronics,
from schematic to certified prototype.

Fieldcore designs control hardware for industrial products: 24 V power architectures, galvanically isolated I/O, mixed-signal DAQ, and CM4/SOM carrier boards — with documented design calculations, EMC-aware layout, and manufacturing-ready outputs.

Book a 20-minute scoping call See the engineering
4-layer
mixed-signal industrial carrier (CM4, isolated I/O, eFUSE power banks)
24-bit
precision DAQ layout experience (0.2 g load-cell resolution)
IEC 61131-2
isolated digital-input design (ISO1212-based DI banks)
Deployed
our own Protex® controller hardware runs in the field (SolarGuard)
Services

Fixed scope. Fixed price. Documented engineering.

Every engagement ends in files you can manufacture from — schematics, layout, BOM, Gerbers, assembly data, and a design-decision record. 50% upfront, IP transfers on final payment.

$250 flat

Design Review

A senior engineer's written audit of your schematic or layout: power integrity, return paths, protection, DFM, standards risks. Delivered in 5 business days. The low-risk way to test us.

Deliverable: written report + annotated findings + fix priorities
from $800

PCB Layout

Constraint-driven layout from your schematic: stackup planning, return-path discipline, creepage/clearance, DFM-clean outputs. KiCad or Altium.

Deliverable: layout + Gerbers/ODB++ + fab notes
from $2,500

CM4 / SOM Carrier Design

Custom carrier boards for Raspberry Pi CM4 and other SoMs — power architecture, isolated field I/O, RS-485/Ethernet/USB integration. Our reference platform below is the proof.

Deliverable: full design package + bring-up support
quoted

Full Product Design

Schematic → layout → prototype coordination (JLCPCB/PCBWay assembly) → bring-up support. Industrial controllers, DAQ nodes, appliance electronics.

Deliverable: turnkey design + assembled prototypes
from $400

EMC / DFM Pre-Compliance Review

Catch the failures before the lab does: protection devices, grounding strategy, isolation barriers, ESD/surge paths, creepage, test-point coverage.

Deliverable: risk report + corrective actions
Selected Work

Proof, not promises.

REFERENCE PLATFORM — COMPLETE

Industrial I/O Carrier for Raspberry Pi CM4

Self-funded R&D · 4-layer Altium design · 100% Fieldcore-owned IP
  • 24 V rail-native: TVS + MOV front end, three TPS26630 eFUSE banks (IOL = 2.4 A) with fault telemetry
  • Isolated DI banks (ISO1212, IEC 61131-2) and SPI-controlled isolated DO banks with per-channel TVS
  • GbE with Bob Smith termination, USB2514B hub, full-duplex RS-485, screw-terminal field wiring
  • Test-point grid on every rail and fault node — bring-up without disassembly
4-layereFUSEIsolationRS-485GbEDFT
Read the full case study →
CM4 industrial I/O carrier — 3D render
Layout screenshot & 3D render
insert here
IN DEVELOPMENT — PUBLIC BUILD LOG

Protex® FlowGuard — Pump Controller with Protection

Own product under the Protex® brand · concept → schematic → PCB → enclosure
  • Automatic tank water-level control for households
  • Pump protection features designed around real failure modes [dry-run / over-voltage / overload]
  • Mains-connected design: creepage discipline, protection devices, cost-engineered BOM

Published as an honest in-development build log — the same engineering rigor we apply to client products, in the open.

Follow the build →
Protex FlowGuard enclosure — design render
💧
Product render (labeled as render)
insert here
FIELD-DEPLOYED

Protex® SolarGuard — Deployed Controller

Own product · deployed in the field · case study in preparation

Our proof that Fieldcore doesn't just draw boards — we take controller hardware all the way to real installations. Full case study with deployment data follows.

Ask about it on a call →
Protex SolarGuard — installed in the field
☀️
Real installation photo
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Process

How an engagement works.

01

NDA + scoping call

Mutual NDA, then 20 minutes on your requirements, constraints, and standards targets.

02

Fixed quote

Written scope, deliverables, timeline, fixed price. No hourly-meter anxiety.

03

50% upfront

Work begins. You get a shared project space with versioned files from day one.

04

Scheduled reviews

Schematic and layout design reviews at defined milestones — you see decisions, with the math.

05

Delivery + 30 days

Complete manufacturing package, remaining 50%, then 30 days of included support.

IP Policy

Your IP stays yours.

Client work is contractually firewalled from Fieldcore's own product lines (Protex®). IP transfers to you on final payment. Mutual NDA before any files change hands. We publish case studies of client work only with written permission — or anonymized.

About

A boutique firm built on industrial practice.

Fieldcore Engineering Systems is an independent hardware design practice based in Bangladesh, serving clients in EU and US time zones. The firm operates with a review-driven process — every design decision is documented and defensible.

Alongside client work, Fieldcore builds its own controller products under the Protex® brand (SolarGuard — field-deployed; FlowGuard — in development). Services revenue funds product R&D; product experience sharpens client work.

  • Focus: modular industrial control hardware — mixed-signal, power, high-density layout
  • Process: review-driven — every design decision documented and defensible
  • Tools: Altium Designer, KiCad, EasyEDA
  • Fabrication partners: JLCPCB, PCBWay (turnkey prototype assembly)
  • Location: Bangladesh · EU/US business-hours overlap
Contact

Tell us what you're building.

Send a short description of your board or product — we reply within one business day with next steps, and a fixed quote after a scoping call.

General: hello@fieldcore-eng.com
Sales / Quotations: sales@fieldcore-eng.com
Book a scoping call

Payments: Payoneer · Wise · SWIFT wire. 50% upfront, milestone-based.