Design

Electronics and PCB design in Zambia — replacements for discontinued boards

Schematic capture, multilayer PCB layout, embedded firmware and small-batch build, on a bench whose boards ship to the United States every month.

Batch of HCS-designed control boards under test

Replacement boards for discontinued equipment

When an OEM has stopped making a control or firing card, we capture the schematic from the failed board, redesign it with components available today and build a drop-in replacement. The Lusaka Water contactor coil economizer is one: deployed February 2026, zero failures since.

Full-stack design

Schematic capture, multilayer PCB layout, embedded firmware, bench test and documentation — with enclosure design for field and panel mounting, and support through local and international certification.

Battery and power electronics

Battery management systems with cell monitoring, balancing and protection; buck, boost and SMPS designs from 3.3 V to 48 V at up to 10 A; custom controllers for industrial and IoT applications.

Proof this is real engineering

Our boards are exported monthly to a client in Texas, silkscreened "Designed in Zambia, Assembled in USA". The power fabric of our Zabble training board is published in Springer Nature's Discover Electronics.

Where we work: Lusaka and across Zambia — mining, water utilities, telecom, manufacturing, food and beverage, milling and government sites. Workshop at Plot No. 34, Harrison Chongo Road, Nyumbayanga, Lusaka. Call or WhatsApp +260 974 546 632, or email sales@hcsys.co.

Questions we are asked

Can you copy a board we can no longer buy?

We do not copy — we reverse-engineer the function and design a new board with current components, usually more robust than the original.

Do you write the firmware too?

Yes. Schematic, layout, firmware, test and documentation are all done in-house.

Can you build in volume?

We build small batches in-house and are commissioning in-house PCB fabrication; larger runs are produced through partners to our design files.

Who owns the design?

That is agreed in writing before the work starts and depends on how the project is funded.

More about this division →

Related

Tell us what failed.

A photo of the unit and its nameplate on WhatsApp is enough to start.

WhatsApp usCall us