Getting started with Data Acquisition and LabJack

Explore data acquisition and control concepts, showing how sensors convert real-world signals to binary data, enabling computers to analyze data, make decisions, and regulate actuators in smart systems.

Explore LabJack data acquisition devices, featuring analog inputs, digital I/O, USB, Ethernet, and Wi-Fi, with onboard Lua scripting and a versatile programming API for autonomous or networked control.

Get a LabJack demo with zero programming that shows button state reading, digital and analog I/O control, voltage output via a digital-to-analog converter, using the dashboard and Lua script.

Explore the LabJack device family, focusing on the T7 and the T4, their hardware script support. Compare USB, Ethernet and Wi-Fi connectivity and analog and digital I/O.

Discover LabJack T4 specifications and documentation, including enclosure and logic-board options, high voltage (-10 to +10 v) and low voltage (0–2.5 v) analog inputs with 12-bit resolution and flexible I/O.

Explore kipling software for labjack devices on Mac, Windows, and Linux, interact via dashboard or registers, and log data with lj log m and lj stream using Python LJM wrappers.

Bookmark the Modbus registers map page to quickly find register addresses, read/write capabilities, and tags for digital inputs and outputs, using Python wrappers, Kipling, or Lua scripts.

Explore Kipling to interact with Lapchick, tour its tabs, and preview LJ Look him, a simple logging app for sampling, plotting, and exporting data to Excel.

Explore the device selector to find and connect USB, Ethernet, or Wi‑Fi devices using the scanner or direct connect method, and learn about identifiers like serial numbers and IP addresses.

Explore the device info overview in LabJack, including serial number, model, and name, and learn how firmware, hardware version, status indicators, and watchdog settings appear.

Explore the LabJack dashboard to view and manage a connected device, select ports, monitor serial, firmware, and errors, and interact with analog inputs and flexible I/O ports directly from the dashboard.

Explore how to manipulate LabJack registers directly with the register matrix, reading analog voltages, toggling ports, and writing values programmatically from the active registers list, similar to dashboard operations.

Explore Lua scripting with the LabJack in Kipling, programmatically manipulate registers, and use the Lua debugger to run, edit, and monitor scripts on the device.

Configure Ethernet or Wi‑Fi network settings and view connection details. Save, load, and restore global configurations and power-up defaults, and use the device updater for firmware; boot with your setup.

Explore configuring and using the LJLogM beta logging utility to capture analog input data from LabJack devices, scale voltages with formulas, and export text log files for spreadsheet analysis.

Explore LabJack T4 analog inputs (high and low voltage) using sensors like potential mirror, light sensor, analog thermostat, and thermocouple; learn amplification, voltage dividers, and testing with documentation.

Demonstrates wiring a push button with a pull-down to analog input zero on a LabJack, and observing voltage readings on the dashboard and registers.

Learn practical data acquisition with a 10 kilohm potentiometer on LabJack analog input zero, compare readings to a multimeter, and assess accuracy and basic analog input tests.

Test LabJack accuracy by grounding analog inputs with a jumper wire and verifying zero readings on dashboard; then validate the digital to analog converter output from 0 to 5 volts.

Learn to use a simple resistive light sensor with a photoresistor, build a voltage divider, and measure light-driven voltage changes with an analog input on LabJack.

See how a thermistor analog temperature sensor translates ambient temperature into voltage on analog input zero, and learn to convert that voltage into Celsius or Fahrenheit with a conversion formula.

Measure temperature with the LM34CAZ silicon sensor on LabJack, converting its voltage output (10 mV per °F) to Fahrenheit and Celsius via a scaling function and live data logging.

Explore LabJack flexible input/output ports that combine analog inputs with digital input/output, enabling either analog or digital operation via registers and auto configuration, with 16 digital I/O.

Explore how LabJack digital input/output ports function, including driving relays and LCDs, reading button states, and using I2C, SPI, and one-wire protocols, with details on pull-ups, logic levels, and protection.

Demonstrates using a potentiometer as an analog input (AIN6) on LabJack, highlighting 0–2.5 V range, 12-bit resolution, with readings via Kipling, the register matrix, and Lua scripting.

Use flexible input output as digital input/output to control a 3.3v relay and led via the dashboard and registers; program with Lua scripts to read and write values.

Demonstrate reading a button state with the flexible input/output port on the FIO7 pin. Observe the internal 100 k pull-up to 3.3 v and the resulting high or low readings.

Explore LabJack's DAC outputs on dec0 and dec1, delivering 0–5 V at up to 12-bit resolution. See writing voltages to dec0 and Lua-based waveform generation demonstrated with an oscilloscope.

Demonstrate writing voltage to text zero with the Kipling dashboard and multimeter. Set zero to five volts in the register matrix and observe instant readings.

Discover extended digital i/o features of LabJack's ports, including flexible input/output with shared analog inputs, counting frequencies, an interrupt counter with bouncing, and a 10 Hz square wave output.

Enable the interrupt counter without debouncing via the register matrix (F enable, IO index eight), count rising edges, and reset using a read register.

Develop an interrupt counter with debouncing on a LabJack by configuring F enable, F config, and config B to set bounce mode zero, improving read accuracy.

Demonstrate using a LabJack frequency counter with a waveform generator and multimeter to convert register ticks into frequency, using dividers and factory settings to maintain accuracy.

Discover Lua basics for LabJack devices, including writing simple Lua scripts and running them on the hardware. Review Hello world, local variables, and a basic loop, and reference learning resources.

Learn to write Lua scripts for LabJack devices, optimize memory with local variables and startup scripts on board, and enable Python communication via user RAM using library functions and registers.

Explore the Lua script debugger in Kipling, with syntax highlighting, debugging, and a console, plus saving scripts to flash memory for persistence and auto-start at boot.

Learn memory management on LabJack with Lua locals, perform string substitutions using gsub, and release RAM by writing zero to the Lua run register when the script ends.

Toggle a LabJack output with a Lua script, using a 1000 milliseconds interval and a while true loop, writing to registers via the LabJack library and register metrics.

Learn how to control LabJack built-in LEDs with Lua by writing to registers, setting power and status, and using a one-millisecond interval to blink two LEDs for five iterations.

Learn to read voltage from analog input zero and write to the digital-to-analog converter using Lua, with register read-write, addresses, and both concise and verbose approaches.

Explore how the LabJack API and Python library enable remote scripting, reading analog input values, and embedding Lua in Python, with hands-on examples and official documentation.

Install the LabJack Python wrapper with pip, then test in Python to connect over the network, create a handle, and inspect device type, IP address, and serial number.

Read analog input zero from a LabJack using a simple Python script that connects over Ethernet or USB, reads a float32 value in a loop, and prints it.

Learn how to write voltage to LabJack DAC 0 using Python, including connecting to a device, addressing the DAC register, and stepping output with a 3-second stabilization delay.

Toggle the LabJack FIO4 LED with Python for data acquisition by writing to a register using write_name, flipping the 0/1 state every half second in a continuous loop.