Nyquist 1
$199.99
- 16 analog inputs · 12-bit · 0–5V
- Up to 19,250 Hz sampling (single channel)
- 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 19,250Hz (single channel)
- 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)
- Sustained streaming up to 80,000sps aggregate — see Sampling Performance
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
Sampling Performance
Maximum sustained Protocol Buffers streaming rate, in Hz per channel, measured at the 252 MHz core clock. Every enabled channel samples at the listed rate, so aggregate throughput scales with channel count — up to 80,000 samples/s across five channels on USB.
| Channels enabled | USB | microSD | WiFi |
|---|---|---|---|
| 1 channel | 19,250 | 9,750 | 8,000 |
| 5 channels | 16,000 | 7,500 | 4,000 |
| All 16 channels | 5,000 | 3,750 | 3,000 |
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.
Desktop 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.
Open Source
Firmware (C/FreeRTOS), hardware schematics, and all client libraries under MIT/BSD. No vendor lock-in.
Open 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.
LabVIEW
Native VIs for NI test framework integration. Analog in (on-demand + continuous), digital in, PWM out, CSV logging.
Node-RED
Drag-and-drop IoT dashboards and workflow automation. Visual flow-based programming with dedicated DAQiFi nodes.
Why 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.
Built 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.
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