Test & measurement

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  • Adafruit USB Isolator - 100mA Isolated Low/Full Speed USB

      Adafruit USB Isolator - 100mA Isolated Low/Full Speed USB
    Have some USB logic analyzer, multimeter or oscilloscope and bumping up against the frustation of a shared earth ground? The Offspring (known for being electrical engineers) wisely sang "Ya gotta keep'em isolated!" Power and signal isolation improves common-mode voltage, enhances noise rejection, and permits two circuits to operate at different voltage levels. This handy little low-cost USB isolator is exactly what you need to provide protection against harmful noise, ground loops, surges, and spikes. Works with any 1.5Mbps (low speed) or 12Mbps (full speed) USB device. Not for high speed USB devices, often used for video cameras (check your product to make sure its low/full compatible) Based on Analog Device's USB isolators It is particularly useful when paired with USB testing instruments, you need to separate or isolate your eath ground (thru the USB connector to the computer to the power plug) from your circuit for high voltage, accident-protection, or floating ground needs. Best of all, this USB isolator even has its own isolated 5V power supply that can supply 100mA, making it perfect for your BitScope Micro USB! Protect your computer or laptop, use one of these in between your ports. 52mm x 30mm x 10mm / 2" x 1.2" x 0.4" Weight: 8.6g
    Part.no: 41013733
    In stock: 2 

  • Adapter cable OBD-II - DSUB9

      Adapter cable OBD-II - DSUB9
    Once you've hacked everything, why not go out in the garage and hack your car? This cable allows you to access the pins on your car's OBDII connector. It has an OBDII connector on one end and a DB9 female serial connector on the other. The overall length of the cable is 5'. Note: This cable is not meant to be plugged directly into a computer's serial port. It is meant to plug into some sort of hardware interface. Here is the basic pinout (OBDII > DB9 Female) Pin Description OBDII DB9 J1850 BUS+ 2 7 Chassis Ground 4 2 Signal Ground 5 1 CAN High J-2284 6 3 ISO 9141-2 K Line 7 4 J1850 BUS- 10 6 CAN Low J-2284 14 5 ISO 9141-2 L Line 15 8 Battery Power 16 9 (OBDII, OBD2)
    Part.no: 41010341
    In stock: 6 

  • Component tester LCR-T4

      Component tester LCR-T4
    Powered by 9V layer-built battery, can use 2 li-ion batteries to form a 8.4V battery pack for long time power. Measuring bipolar transistor current amplification factor and base-emitter threshold voltage. Automatic test the pin of a component, and display on the 128 * 64 LCD backlight. Measure the gate and gate capacitance of the MOSFET threshold voltage. One -button operation, automatic shutdown, only 20nA shutdown current. Eeverse breakdown voltage is less than 4.5V, Zener diode can be identified. 2uF more capacitors can simultaneously measure the equivalent series resistance ESR values. Via the base - emitter threshold voltage and high current amplification factor to identify Darlington transistors. Can simultaneously measure two resistors and resistor symbol is displayed. Displayed on the right with a decimal value of 4. Can detect the transistor, MOSFET protection diode amplification coefficient and the base to determine the emitter transistor forward biased voltage. Automatic detection of NPN and PNP transistors, n-channel and p-channel MOSFET, diode (including double diode), thyristor, transistor, resistor and capacitor and other components. Specifications: Material: PCB Power Mode: 6F22 Display: 128 * 64 LCD backlight Testing Speed: 2 seconds (1 minute is normal for large capacitor) Shutdown Current: 20nA Displayed Value: 25pf-100mF (resolution 1pF) Inductance: 0.01mH-20H Resistance: =2100O Power Voltage: 9V layer-built battery / 2 li-ion batteries to form a 8.4V battery pack Resolution of Resistance Measurement: 0.1 ohms The Highest Measured Value: 50M ohms Provided Testing Current: Approx. 6mA Product Size: 7.2 x 6.25cm (L * W)
    Part.no: 41014835
    Currently not in stock

  • Current sensor breakout INA169

      Current sensor breakout INA169
    INA169 current sensor breakout board. By measuring the voltage drop over the shunt resistor (Rs), the current consumption of the measured circuit can calculated. The shunt resistor can be replaced to allow for different measuring ranges: (RL = 10kohm), 10ohm for 3.5mA - 35mA, 1ohm for 35mA - 350mA and 0.1ohm for 350mA - 3.5A. Se hook-up guides and datasheet under files.
    Part.no: 41012233
    In stock: 15 

  • Datalogger 4ch USB

      Datalogger 4ch USB
    Velleman PCS10 Datalogger för inspelning av DC och långsamma signaler över lång tid. Dataloggern ansluts till din PC via USB, och mätningarna lagras automatiskt på din hårddisk. - 1 Mohm ingångsimpedans - 100 samples/s (max) - 3, 6, 15 och 30V ingångsområden - 30V max ingångsspänning - 10 mV känslighet - noggranhet 3% av fullt skalutslag PC-LAB2000 programvara som låter dig övervaka signalerna via PC:ns skärm ingår.
    Part.no: 41002014
    In stock: 2 

  • Fukt och vattensensor

      Fukt och vattensensor
    This Moisture Sensor can be used to detect the moisture of soil or judge if there is water around the sensor, let the plants in your garden reach out for human help. They can be very to use, just insert it into the soil and then read it. With help of this sensor, it will be realizable to make the plant remind you : Hey, I am thirsty now, please give me some water. Features Easy to Use 2.0cmX6.0cm grove module Application Ideas Botanical gardening Water sensor
    Part.no: 41013363
    In stock: 49 

  • Geiger counter

      Geiger counter
    This USB powered Geiger Counter is equipped with an ATMega328 that can be programmed in circuit using one of the programmers below. Simply plug the unit into USB (make sure you have FTDI drivers installed), open a terminal program to the correct COM port at 9600bps, and you will see random bits being generated from the random background radiation. Each bit generated (an ASCII byte 0 or 1) represents an actual event in the tube in real-time, so the output can be used to deduce CPM or what ever units you need. Here at SparkFun, on average, we get about 25 counts a minute. Want proof? Check out the live Geiger Counter feed from SparkFun headquarters. While you're at it, why not check out the random number generating Geiger counter tutorial? Note: While the Geiger counter is powered and the switch is in the ON position, the board contains exposed high voltage components. In order to turn the unit off, you must flip the tube power switch to OFF while the USB cable is plugged in or while the board is still connected to your power supply. The reason being; when you move the switch into the OFF position, the high voltage lines are bled out through a resistor connected to ground, more information on this is in the tutorial. A project box or enclosure is suggested. Do not touch the end window of the Geiger tube and do not to touch any conductive region inside the area marked HIGH VOLTAGE when the Geiger tube is powered ON. An enclosure is not absolutely necessary, but if you choose not use an enclosure, remember to be extra careful with the end window and high voltage regions. The Geiger tube comes with a red boot to protect the end window during production, handling, and shipping. The boot should be removed if you need to detect alpha particles. However, you should still see activity from gamma and beta particles even with the boot on. This product is controlled for export by the United States. Sending it to other countries may still be possible, but will require additional information prior to shipment. Note: This product is for educational purposes and should not be directly relied upon for determinations regarding one's health or safety. 5V Logic Total Current 30mA LND712 Geiger Tube @ 560V ATMega328 Microcontroller FTDI USB Interface On Board Power and Status LEDs TTL (Active High) Output Pin from Tube
    Part.no: 41011489

  • Logomatic v2 Serial datalogger USB SD-card

      Logomatic v2 Serial datalogger USB SD-card
    The Logomatic v2 takes everything we learned with multiple logging projects over the years and boils it down to an easy to use device, that is now more adaptable than ever! Version 2 incorporates the LPC2148 with microUSB, battery charging, FAT32 formatting, and microSD support. This allows us to use the SparkFun LPC2148 USB bootloader for even easier and faster modification of the firmware. No programmer required! The Logomatic v2 uses a USB mass storage stack to appear under any operating system as a flash drive. Logs are created in FAT32 format on the microSD media and can be downloaded quickly over a USB connection by dragging and dropping the text files from the device. The microSD card can also be removed and inserted into a card reader to download the logs. This board comes with a JST connector to be powered from our line-up of LiPo batteries or other power sources up to 7.5VDC. If you choose to use LiPo batteries, the Logomatic v2 has a built-in charger to charge batteries off USB. The Logomatic v2 ships with basic serial text and analog logging. Users can easily start with this firmware but are encouraged to modify the firmware for their specific requirements. Its a truly flexible logger. Features: * LPC2148 ARM7 * 512K user flash * 10 available GPIO pins * Built-in RTC * 2 Status LEDs * microUSB Link LED * External interrupt * microSD socket * Compatible with most SDHC flash media (no longer limited to 2GB) * Built-in MCP73831 USB charger (300mA max) * Built-in USB mass storage device bootloader * Dimensions: 38 x 61mm (1.5x2.4")
    Part.no: 41012957
    In stock: 1 

  • Micro-SD sniffer

      Micro-SD sniffer
    When playing with microSD, you sometimes need to view what the SPI traffic is doing, whether for hacking or debugging. The microSD Sniffer allows you to hook up an external device, such as a logic analyzer or microcontroller, to view what signals are being passed back and forth. Insert one side into a regular uSD socket and a uSD card into the on-board socket, simple as that. All necessary pins are broken out to an 8-pin 0.1" pitch header.
    Part.no: 41003888
    In stock: 5 

  • MiniGen signal generator 3MHz SPI

      MiniGen signal generator 3MHz SPI
    Signal generator in Arduino Pro Mini form factor. The module can generate sine, square and triangle waves in frequencies up to 3MHz at 1Vpp amplitude. The form factor makes it compatible as a shield for Arduino Pro Mini, but can be used stand-alone as well, with the same functionality. The output signal is presented simultaneously on both the u.fl-connector and on 2 pins of the headers. The output has a DC-offset of Vcc/2. The generator is intended for use with 3.3V supply voltage and logic signals. To use it with 5V supply voltage and logic signals, the solder bridge on the back side must be jumpered correctly! Features: * 10-bit DAC for good accuracy * 2 frequency registers * 2 phase registers * SPI Interface Driven at 40MHz * Operating Voltage: 3.3V (5V when jumper is soldered)
    Part.no: 41012913
    In stock: 3 


    This board allows you to interface with your car's OBD-II bus. It provides you a serial interface using the ELM327 command set and supports all major OBD-II standards such as CAN and JBUS. The board also provides a footprint which mates directly to our FTDI Basic or a Bluetooth Mate. The DB9 connector mates with our DB9 to OBD-II cable listed below. On-Board Diagnostics, Second Generation (OBD-II) is a set of standards for implementing a computer based system to control emissions from vehicles. It was first introduced in the United States in 1994, and became a requirement on all 1996 and newer US vehicles. Other countries, including Canada, parts of the European Union, Japan, Australia, and Brazil adopted similar legislation. A large portion of the modern vehicle fleet supports OBD-II or one of its regional flavors. Among other things, OBD-II requires that each compliant vehicle be equipped with a standard diagnostic connector (DLC) and describes a standard way of communicating with the vehicles computer, also known as the ECU (Electronic Control Unit). A wealth of information can be obtained by tapping into the OBD bus, including the status of the malfunction indicator light (MIL), diagnostic trouble codes (DTCs), inspection and maintenance (I/M) information, freeze frames, VIN, hundreds of real-time parameters, and more. STN1110 is an OBD to UART interpreter that can be used to convert messages between any of the OBD-II protocols currently in use, and UART. It is fully compatible with the de facto industry standard ELM327 command set. Based on a 16-bit processor core, the STN1110 offers more features and better performance than any other ELM327 compatible IC. Features: Fully compatible with the ELM327 AT command set Extended ST command set UART interface (baud rates from 38 bps to 10 Mbps) Secure bootloader for easy firmware updates Support for all legislated OBD II protocols: ISO 15765-4 (CAN) ISO 14230-4 (Keyword Protocol 2000) ISO 9141-2 (Asian, European, Chrysler vehicles) SAE J1850 VPW (GM vehicles) SAE J1850 PWM (Ford vehicles) Support for non-legislated OBD protocols: ISO 15765 ISO 11898 (raw CAN) Support for SAE J1939 OBD protocol Superior automatic protocol detection algorithm Large memory buffer Voltage input for battery monitoring (OBDII, OBD2)
    Part.no: 41010340

  • Open log datalogger

      Open log datalogger
    OpenLog is an open source data logger. Simple to use, simple to change. We wanted to create a serial logger that just worked. Power this device up and send it serial commands. 'new' will create a new file. 'md' makes a directory. '?' brings up the list of commands. OpenLog doesn't do a lot, but it does log serial streams extremely well. Example: >new testfile.txt >append testfile.txt That's really it! You don't even have to send the Ctrl+z (ASCII 26) to complete the file. The buffer will store all received characters as they come in (a maximum of 511 bytes may be lost in the buffer if Ctrl+z is not received). You don't even need to create the file - you can do that on a computer using a microSD reader. Please see the notes at the beginning of main.c for more information. OpenLog firmware is open source and is based on Roland Riegel's FAT library. OpenLog currently supports FAT16 (upto 2GB microSD cards). We're working on FAT32 and would love your help! Features: * Log to low-cost microSD cards up to 2GB * Simple command interface * Configurable baud rates (2400 to 115200bps) * Doesn't drop characters even at full-blast 115200bps * Power, ground, and RX-I are the minimum connections * Reprogrammable ATmega328 using the standard STK500 serial bootloader * Two LEDs indicate writing status * Input voltage from 3.3V to 12V * 8mA idle, 18mA at maximum recording rate Dimensions: 0.16 x 0.6 x 0.75" (4 x 15 x 19mm)
    Part.no: 41003903
    In stock: 3 

  • Oscilloscope Tutor Kit

      Oscilloscope Tutor Kit
    Learn how to get the most out of your digital oscilloscope. The board generates a number of safe 'real-world' signals, which we will use to perform measurements. Get familiarized with AC, DC and frequency measurements, sine and square waves, power supply ripple, full and half wave rectifiers, oscillators etc Learn what terms such as V/div, Time/div, trigger level, auto-setup etc mean. All experiments featured in this project are performed with the Velleman HPS140 Handheld Pocket Scope. Most experiments can be done with any digital storage scope. Some experiments can be performed with an analog scope. Features signals: alternating current (AC) adjustable AC full- and half wave rectified AC smoothed direct current (DC) ripple astable oscillator assembled and tested, no soldering required Specifications power supply: 9...12VAC / min.100mA (adapter not incl.) dimensions: 116x74x24mm / 4.6x2.9x0.9" optional: 9VAC /500mA adapter PS905AC
    Part.no: 41010666
    In stock: 3 

  • Panel volt meter module LED 3.2-30V DC

      Panel volt meter module LED 3.2-30V DC
    Volt meter module with three LED digits, blue. Powerd by the testvoltage, works between 3.2--30V DC. Dimensions: PCB: 30mm x 20mm Display: 23mm x 14mm Digit height: 9.5mm Combined Depth: 11mm Power specifications: 3.2V to 30V DC measurements, 0.1V precision 3-4mA current consumption Blue LED display Note: Use with positive voltages only!
    Part.no: 41010408
    In stock: 48 

  • SD Sniffer

      SD Sniffer
    This board is a unique board recommended by a SparkFun customer. When playing with SD, you sometimes need to view what the SPI traffic is doing, whether for hacking or debugging. The SD Sniffer allows you to hook up an external device, such as a logic analyzer or microcontroller, to view what signals are being passed back and forth. Insert one side into a regular SD socket and a SD card into the SD holder, simple as that. Note: This product is a collaboration and a portion of each sale goes toward the designer for product support and continued development.
    Part.no: 41011039
    In stock: 5 

  • Sparkfun OpenLog

      Sparkfun OpenLog
    The SparkFun OpenLog is an open source data logger that works over a simple serial connection and supports microSD cards up to 64GB. The OpenLog can store or log huge amounts of serial data and act as a black box of sorts to store all the serial data that your project generates, for scientific or debugging purposes. The SparkFun OpenLog runs off of an onboard ATmega328, running at 16MHz thanks to the onboard crystal.The OpenLog draws 6mA when recording a 512 byte buffer, but as that process takes a fraction of a second, the average current draw is closer to 5mA. Keep in mind though that if you are recording a constant data stream at 115200bps, you will approach that 6mA limit. All data logged by the OpenLog is stored on the microSD card that involve the features of 64MB to 64GB capacity and FAT16 or FAT32 file type. Note: The latest version of the firmware (included with this board) does not compile in Arduino 1.6.7. You will need to compile in 1.6.5. Features: VCC Input: 3.3V-12V (Recommended 3.3V-5V) Log to low-cost microSD FAT16/32 cards up to 64GB Simple command interface Configurable baud rates (up to 115200bps) Preprogrammed ATmega328 and bootloader Four SPI pogo pins Two LEDs indicate writing status 2mA idle, 6mA at maximum recording rate
    Part.no: 41014853
    In stock: 5 

  • Voltage reference 2.048V / 4.096V LM4040

      Voltage reference 2.048V / 4.096V LM4040
    How good is your multimeter really? Or maybe your analog converter needs a good reference? Or lets say you want to test your microcontroller's conversion accuracy & precision. If only you had a dependable, high precision, rock-solid voltage reference. Now you know why we made this very cute and useful little breakout board. It has two very high precision shunt-type voltage references with 750 ohm biasing resistors. One is 2.048V (great for 3.3V reference systems) and the other is 4.096 (great for 5V). Both are 0.1% accuracy! Using is easy, just power with about 5V-12V, or 3V if you want only the 2V reference to work. Then measure the voltage on the output. Note that these are not regulators - you can't power anything off the output. They are for measurements only. For more details, check the LM4040 Datasheet for more information.
    Part.no: 41013310
    In stock: 11 

  • XMEGA Xprotolab

      XMEGA Xprotolab
    When you think about a piece of equipment like a mixed signal oscilloscope you usually think of, well, a piece of equipment. What you probably don't imagine is a DIP package. The XMEGA Xprotolab is exactly that: The first ever mixed signal oscilloscope, logic analyzer and arbitrary waveform generator in a DIP module. At only 1 x 1.6 inches, this oscilloscope can be plugged directly into a breadboard. The on-board graphic OLED matrix can display waveforms, measurements and menu systems. You can also connect it to your PC and use Gabotronics' XScopes software to control the device and view waveforms. The scope itself obviously allows simultaneous sampling of analog and digital signals but also has several advanced trigger modes, XY mode for plotting Lissajous patterns, phase differences or V/I curves, Spectrum Analyzer with different windowing options and even an arbitrary waveform generator with sweep on all parameters. The awesome functionality-to-size ratio is due, in part, to the ATXMEGA32A4U microcontroller on board. We can hear you thinking, "This board has an ATXMEGA32A4U, an OLED display and USB interface? Scope or no scope, this would be a great development board!" Well Gabotronics had the same thought and installed a USB bootloader so there's no need for specialized programming tools! Dimensions: 1.615" x 1.01" Features: ATXMEGA32A4U Development Board ATXMEGA32A4U 36KB Flash, 4KB SRAM, 1KB EEPROM Graphic OLED display 0.96", 128x64 pixels PDI interface 4 tactile switches USB connectivity Logic Analyzer 8 Digital Inputs, 3.3V level Maximum sampling rate: 2MSPS Frequency counter: 12Mhz Protocol Sniffer: UART, I2C, SPI Internal pull up or pull down. Buffer size: 256 Mixed Signal Oscilloscope 2 Analog Inputs Maximum Sampling rate: 2MSPS Analog Bandwidth: 200kHz Resolution: 8bits Input Impedance: 1MO Buffer size per channel: 256 Input Voltage Range: -14V to +20V Arbitrary Waveform Generator 1 Analog Output Maximum conversion rate: 1MSPS Analog Bandwidth: 44.1kHz Resolution: 8bits Output current > +/- 7mA Buffer size: 256 Output Voltage: +/- 2V
    Part.no: 41011396
    Currently not in stock