Accordion — modular test system for production and design verification

From fragmented testing to unified precision.

Electronics testing often means a complex mix of disconnected tools, protocols, and manual workarounds. Accordion brings data acquisition, stimuli generation, programmable power, and protocol communication into one cohesive system — the same chassis, the same API, and the same code from design verification through to volume production.

Accordion A2 Lite €2,995

96 mixed-signal channels via 6× IDC. USB-C 130 W. Entry configuration for PCBA test and bring-up.

See A2 Lite

Accordion A2 Plus €4,595

Everything in A2 Lite, plus dual programmable PSU (0–20 V / 0–10 A) and I²C, UART, SPI, JTAG. Bring-up with power and communication.

See A2 Plus

Accordion A2 Build Quoted on configuration

The same A2 chassis, configured from the Accordion module library to match your test bench.

Configure an A2 Build

Accordion Tailored Test System

When standard modules aren't enough, we build to spec. Same chassis, same control stack, same API — delivered as a turnkey system.

Explore the tailored route

Accordion Pilot

A powerful GUI for hands-on test work — channel control, monitoring, and recording without writing code.

See Accordion Pilot

Accordion2Excel

Connect Accordion directly to Excel for live measurements, parameter sweeps, and rapid prototyping of test sequences.

See Accordion2Excel

Python with Accordion

Drive every Accordion channel from Python through the official PyPi package. Test scripts that run on your laptop, in CI, and on the production line.

See the Python guide

One platform. Four reasons.

SIGNALS AND BUSES ADC/DAC, I²C, UART, SPI, and JTAG in one test node.

SHIFT-LEFT Design verification to production test — one continuous thread from prototype to volume.

GUI, CODE, OR CI Pilot for hands-on use. Python, C#, Web API, and TestStand for automation.

PROGRAMMABLE POWER Dual PSU, PoE, USB-PD, active loads, and battery simulator — all software-controlled.

Where Accordion wins

Mixed-signal measurement and stimuli (analog + pseudo-digital)
Buses — I²C, UART, SPI, JTAG — in the same chassis
Programmable power, active loads, PoE, and battery simulation
Test systems that span design verification → NPI → production
Multi-channel automation and fixture control
Embedded electronics, IoT, automotive, industrial electronics

One chassis replaces a rack

DAQ cards (analog + digital I/O)
1–2 programmable PSUs
Active loads
I²C / SPI / UART dongles (Aardvark / Beagle-class)
JTAG probe
Dedicated PoE test equipment

One box instead of five to eight instruments.

Control Accordion from your language of choice

Every Accordion module is controlled through one Web API. Officially supported wrappers exist for .NET (via NuGet) and Python (via PyPI). The same API drives TestStand, LabVIEW, custom integrations, the Pilot GUI, and the Shell CLI — so the same test code runs on your developer machine, in CI, and on the production line.

.NET

Drop Accordion into your existing .NET test framework — same channel model, same data types, no driver layer. dotnet add package AccordionQ2.WebApiClient

View on nuget.org

Python

Drive every Accordion channel from a few lines of Python. Test scripts run unchanged on your laptop, in CI, and on the production line. pip install accordionq2

Read the Python guide

TestStand & LabVIEW

Reuse your NI investment — Accordion plugs into both through the same .NET assembly. No new tooling, no separate maintenance path. Reference via .NET adapter

Built on Accordion

Axis Communications

Axis's growing product portfolio demanded more test capacity, faster data collection, and a higher quality bar in production. E-Sharp built a tailored Accordion system around a custom PoE M.2 module (ESH10000534) that replaces external PoE injectors in their test bench.

Read the Axis case

“Our ambition with Accordion: a test system with everything you need — no awkward drivers, no dependencies, the same code and the same interface for everything. An engineer’s best friend, simply put.”

— Daniel Rhodin, founder of E-Sharp and Tech Lead for Accordion

Turnkey NPI test for SoC prototype systems

Complex silicon prototype systems demand consistent NPI and production test across a broad SKU range. E-Sharp deployed Accordion-based test stations across the production line — one platform, every station.