Nyquist 1
- 16 analog inputs · 12-bit · 0–5V
- 16 digital I/O · 5V · PWM capable
- 802.11n WiFi (AP + Station)
- USB 2.0 · MicroSD logging
- Protobuf · JSON · CSV streaming
- 4000mAh Li-Ion battery
Open Platform
- Open-source hardware, firmware & software
- SCPI command interface over USB or WiFi
- Onboard CLI for direct device access
- No proprietary drivers or locked-down protocols
Wireless, battery-powered data acquisition — no PC required at the measurement point.
Description
Wireless Data Acquisition, Untethered
The Nyquist 1 is a portable, battery-powered DAQ with 16 channels of 12-bit analog input, 16 configurable digital I/O, WiFi, USB, and onboard MicroSD logging. No wires, no dedicated PC — deploy it wherever you need data.
Features & Capabilities
Measurement
- 16 single-ended analog inputs (0–5V)
- 12-bit ADC resolution — 4,096 measurement levels per channel
- Up to 20kHz×1ch, or 9kHz×16ch=144kspsaggregate
- Factory calibration included
Digital I/O
- 16 channels, individually configurable as input or output
- 5V logic, 30mA sink/source per pin
- PWM output on select channels (configurable frequency and duty cycle)
- TVS and PTC fuse protected
Connectivity
- 802.11n WiFi (2.4 GHz) — Access Point or Station mode
- WPA2-PSK security
- USB 2.0 virtual COM port
- TCP streaming over WiFi
- Multiple Nyquist units stream to one client simultaneously
Onboard Logging & Streaming
- Onboard MicroSD logging — standalone recording, no PC required
- Streaming formats: Protocol Buffers, JSON, CSV
- Download log files over USB without removing the card
- Auto-split at configurable file size (FAT32 compatible)
- USB streaming: 144ksps · PB 16ch @ 9 kHz (5T1+11T2)
- MicroSD logging: 64ksps · PB 16ch @ 4 kHz (5T1+11T2)
- WiFi streaming: 22ksps · PB 11×T2 @ 2 kHz
Power
- 4000mAh Li-Ion rechargeable battery, USB charging
- 5V regulated analog output rail (isolated, ESD-protected, clamped) — for sensor power
- 5V regulated digital output rail — for digital accessories
Protection
- TVS diodes on all analog inputs and digital I/O
- PTC resettable fuses on digital channels
- Isolated, clamped power outputs
- USB and battery polyfuse protection
- Built for real-world lab and field environments
Software & Integration
Onboard CLI — Agent-ready
Direct text-command access over USB or WiFi. Built for scripting, automation, and emerging agentic AI workflows — query and control the device from any tool that can open a serial port or socket.
daqifi-nyquist-firmwareDesktop App
DAQiFi Desktop App (Windows) — real-time multi-channel graphing, automatic device discovery over WiFi, channel configuration, calibration management, CSV logging, and firmware updates in one app. Free with every Nyquist. No license fees, no per-seat subscriptions, no expensive software suite required.
daqifi-desktopOpen Source
Firmware (C/FreeRTOS), hardware schematics, and all client libraries under MIT/BSD. No vendor lock-in.
github.com/daqifiOpen APIs
.NET / C#, Python, LabVIEW, Java, Node-RED — plus raw SCPI from any language with socket or serial support (MATLAB, Ruby, Rust, Go, anything). No proprietary SDK lock-in.
daqifi-coreLabVIEW
Native VIs for NI test framework integration. Analog in (on-demand + continuous), digital in, PWM out, CSV logging.
daqifi-labviewNode-RED
Drag-and-drop IoT dashboards and workflow automation. Visual flow-based programming with dedicated DAQiFi nodes.
daqifi-nodeWhy the Nyquist 1
Enterprise-grade SCPI
The industry-standard command language used across professional lab instrumentation. Open protocol over USB or WiFi — your SCPI scripts work anywhere, on any stack. No proprietary drivers, no per-instrument dialect to learn.
daqifi-nyquist-firmwareBuilt to survive
Ruggedized electronically against over-voltage, ESD, short-circuits, and the everyday abuse of lab and field work. TVS-diode protection on every analog and digital I/O. PTC resettable fuses. Isolated, ESD-clamped power outputs.
Proven in extremes
Beta-tested on a zero-gravity flight for ISS fire-extinguisher research. If it works at 0 g, it'll hopefully survive your lab bench!
What You Can Measure
The Nyquist 1 reads voltage within 0–5V. Connect any voltage-output sensor directly — pressure transducers, accelerometers, potentiometers, Hall-effect current sensors, photodiodes, or the analog output of another instrument. With appropriate signal conditioning, also works with thermocouples, strain-gauge bridges, load cells, and pH probes. The sensor determines what you measure; the Nyquist handles acquisition, streaming, and logging.
Get the Nyquist 1
SKU DAQIFI-NQ1 · Also available on Mouser Electronics
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