Industrial Hardware Engineering · Bangladesh → EU/US time zones

Industrial electronics,
from schematic to 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.

Tell us what you're building 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 industrial hardware design consultancy 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 call.

📅 Grab a time slot

20 minutes, no pitch — just engineering talk about your board.

Let's talk

Auto-generates a Google Meet link

✉️ Send a message

General: hello@fieldcore-eng.com
Sales / Quotations: sales@fieldcore-eng.com
📍 Bangladesh (UTC+6) — we overlap with your business hours ⚡ We reply within one business day

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