PCB Design & Industrial Automation

Engineering Solutions at the Atomic Level

Budget-friendly PCB design and industrial automation for manufacturers who need precision without the enterprise price tag.

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25+
Years experience
100%
Remote capable
PCB
SMT & through-hole
100%
Team centric
What we do
Services
End-to-end electronic design and automation — from schematic to shop floor.
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PCB Design

Schematic capture, board layout, routing, and production GERBER files. SMT and through-hole, single to multi-layer.

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PCB Assembly (PCBA)

Full PCB assembly support — BOM preparation, component sourcing, assembly house liaison, and production optimization for both SMT and through-hole builds.

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Wave Soldering

In-house wave solder capability for through-hole and mixed-technology boards, with custom alignment fixtures for precise multi-board registration. Max board size 12" x 14".

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Firmware Development

AVR / Arduino-based embedded firmware, MQTT, Wi-Fi, and serial protocols for custom hardware.

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Machine Connectivity

MTConnect, OPC-UA, MQTT, and FOCAS adapters for legacy CNC and industrial controllers.

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OEE & Monitoring

Browser-based dashboards and data collection devices to monitor factory productivity in real time.

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PLC Programming

Ladder logic for Allen Bradley, Siemens, WAGO, and more. Read or write programs for process control.

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Visual C++ Programming

Windows application development using Microsoft Visual C++ with MFC. Desktop tools, industrial interfaces, serial communications, and custom software for machine and process control.

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SolidWorks Design

3D mechanical design, assemblies, and detailed engineering drawings using SolidWorks. Enclosure design, custom brackets, and production-ready DXF and STEP files for machining and fabrication.

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Web Dashboards & UI

Custom web-based reporting, visualizations, and remote monitoring interfaces for industrial systems.

Showcase
Real-world results from our engineering work in the field.
Live project
Solar Station Dashboard — 18KPV
Real-time solar power monitoring  ·  Full-stack IoT  ·  Valence Shell
🔴 Live  → View Dashboard

Full-stack IoT solar monitoring — from inverter to browser, in real time

Valence Shell designed and built the complete data pipeline for this live solar monitoring system. Custom software interfaces directly with the solar inverters to collect generation data, publishes it via a cloud MQTT broker, and a browser-based dashboard connects over WebSockets to render everything live — no page refresh required.

The dashboard is live and publicly accessible, showing real data from a 48-panel solar installation with two string inverters. It tracks production, consumption, battery state, UV index, and per-panel-string voltage, current, and power — updated in real time. The solution is fully compatible with the EG4 family of solar inverters, making it a drop-in monitoring upgrade for any EG4-based installation.

Main dashboard — what it shows
  • Solar arc & sun position — animated day arc with sunrise (05:39), current time, and sunset (20:09) plus live UV index (9.699)
  • Production & consumption — peak 15,448W, daily production 45.5kWh, consumption 36.3kWh, grid usage 0kWh
  • Battery pack status — state of charge (57%), voltage (53.2V), total amps (199.8A), charge limit, and time-to-full (3h 18m)
  • Per-inverter string data — two inverters each showing PV1/PV2/PV3 power, voltage, and current live
  • Historical charts — 7-day production history (kWh), 7-day peak power (W), and hourly UV forecast
PV module dashboard — individual panel monitoring
  • Data is captured from Tigo energy optimizers fitted to each panel, providing per-panel voltage, wattage, and current
  • All 48 panels are displayed individually with their label, live voltage, output power (W), and current (A)
  • Panels dynamically reorder themselves by output power — highest producers rise to the top, lowest sink to the bottom, making underperforming panels instantly visible
  • Enables rapid identification of shading, soiling, or degradation issues at the individual panel level
Main Dashboard
18KPV Solar Dashboard
PV Module View
Individual PV Panel Output Dashboard
Technical stack
CompatibilityEG4 family of solar inverters
Panel dataTigo energy optimizers (per-panel)
Edge softwareCustom inverter interface, built by Valence Shell
TransportCloud MQTT broker
FrontendWebSockets → live browser dashboard
Panels48 panels monitored individually
Peak output15,448W
Battery57% SoC · 53.2V · 199.8A total
StatusLive & publicly accessible
Built different

No agency markup

Direct access to the engineer designing and building your project — no account managers, no overhead.

Hardware to software

Rare depth across PCB design, embedded firmware, PLC, and industrial networking in one shop.

Production-ready output

GERBER files, BOMs, schematic packages, and test procedures ready for your assembly house.

Legacy-friendly

Specializing in retrofitting older machines and controllers with modern connectivity — no rip-and-replace required.

Valence Shell

Engineering from the ground up

Valence Shell is a hands-on engineering consultancy specializing in PCB design and budget-conscious industrial automation. With roots in mechanical engineering, CNC technology, and 25+ years of electronics design, we bridge the gap between legacy factory hardware and modern connectivity.

We've built award-winning edge devices, connected hundreds of machines to MES systems, designed multi-layer PCBs for production, and written firmware for everything from beer brewstands to water filtration systems.

📍 Eastvale, CA  ·  Remote-friendly worldwide

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