{"product_id":"sparkfun-otii-arc","title":"SparkFun Otii Arc","description":"\u003cp\u003eWe love the Otii Arc! It is a truly versatile power supply and analyzer. Coupled with powerful but easy-to-use software, it is an ideal tool to help study the power draw of your IoT project or device. It can record and display real-time currents, voltages and\/or UART logs. It provides nanoamp resolution current measurements with a sample rate of up to 4000 samples per second!\u003c\/p\u003e \u003cp\u003eOtii (pronounced like naughty) is handy in all sorts of troubleshooting situations. The Otii truly shines with any device that needs to be designed to sleep for low power and has to run 'a long time' on a battery. The Otii Arc can measure current very accurately over eight orders of magnitude from tens of nanoamps up to 5 Amps. This means you can measure the sleep current of a board and the peak current draw all in one continuous measurement. Leave the system logging for hours then read the minimum, maximum and average current and power use straight from the oscilloscope-like recording. By linking the Otii Arc to a UART (Serial) pin and\/or a GPIO pin, you can immediately see what the current draw was while the code was performing a specific task. Stop guesstimating what your runtime will be and prove it!\u003c\/p\u003e \u003cp\u003eOne of the features we really love is that you can connect a battery to the Otii Arc. The Otii Arc can then discharge the battery while recording the voltage and current profile. The Otii Arc can then \u003cem\u003eemulate\u003c\/em\u003e that same battery, time and time again, saving you the trouble of having to replace or recharge the battery between tests. Want to see how your board will perform when connected to a particular LiPo battery? The Otii Arc lets you do exactly that. (Battery discharge, profiling and emulation requires an additional Otii Battery Toolbox license.)\u003c\/p\u003e \u003cp\u003eThe Otii Arc has a USB interface to connect to your laptop or computer. It can use USB as its main power source and deliver up to 4.2V to the board under test. Maximum current depends on the USB port but usually between 250mA and 750mA. Connect an external power supply (7.5 - 9 V) and Otii Arc can deliver up to 5.0V at 2.5A continuous, 5A peak! The accompanying software is available for Windows (7 \u0026amp; 10, 64-bit), macOS (High Sierra or later) and Ubuntu (18.04 or later, Intel 64-bit).\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eIncludes:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eUSB cable (1m)\u003c\/li\u003e \u003cli\u003eThe Otii Arc can be powered over USB (250mA max) but \u003cstrong\u003edoes not\u003c\/strong\u003e come with an external power supply \u003cul\u003e \u003cli\u003e7.5 - 9VDC (2A+ recommended)\u003c\/li\u003e \u003cli\u003e2.1 \/ 5.5mm barrel jack, +ve center\u003c\/li\u003e \u003c\/ul\u003e\n\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eUSB Power Supply \u003cul\u003e \u003cli\u003eOutput voltage (auto range): 0.5V - 3.75V\u003c\/li\u003e \u003cli\u003eOutput voltage (locked to high current range): 0.5V - 4.2V\u003c\/li\u003e \u003cli\u003eOutput voltage setting resolution: 1mV\u003c\/li\u003e \u003cli\u003eOutput current: 250-750mA (capacity in laptops and desktops greatly depend on host USB port\/cable design) \u003cbr\u003e \u003cbr\u003e\n\u003c\/li\u003e \u003c\/ul\u003e\n\u003c\/li\u003e \u003cli\u003eExternal 7.5 â�� 9V Power Supply \u003cul\u003e \u003cli\u003eOutput voltage (auto range): 0.5V - 4.55V\u003c\/li\u003e \u003cli\u003eOutput voltage (locked to high current range): 0.5V - 5.0V\u003c\/li\u003e \u003cli\u003eOutput voltage setting resolution: 1mV\u003c\/li\u003e \u003cli\u003eOutput current (max continuous): 2.5A\u003c\/li\u003e \u003cli\u003eOutput current (max peak): 5A \u003cbr\u003e \u003cbr\u003e\n\u003c\/li\u003e \u003c\/ul\u003e\n\u003c\/li\u003e \u003cli\u003eProgrammable Current Sink (requires an \u003ca href=\"https:\/\/www.qoitech.com\/buy\/\"\u003eOtii Battery Toolbox license\u003c\/a\u003e) \u003cul\u003e \u003cli\u003eSink current: 0A - 2.5A\u003c\/li\u003e \u003cli\u003eSink current resolution: 39�µA\u003c\/li\u003e \u003cli\u003eSink voltage (USB power supply): 0.85V - 4.2V\u003c\/li\u003e \u003cli\u003eSink voltage (external power supply): 0.85V - 5.0V \u003cbr\u003e \u003cbr\u003e\n\u003c\/li\u003e \u003c\/ul\u003e\n\u003c\/li\u003e \u003cli\u003eCurrent measurement \u003cul\u003e \u003cli\u003eAccuracy: �±(0.1% + 50 nA)\u003c\/li\u003e \u003cli\u003eSample Rate in �±19 mA range: 4ksps\u003c\/li\u003e \u003cli\u003eSample Rate in �±2.7 A range: 1ksps\u003c\/li\u003e \u003cli\u003eSample Rate in �±5.0 A range: 1ksps\u003c\/li\u003e \u003cli\u003eAnalog bandwidth (3 dB): 400Hz \u003cbr\u003e \u003cbr\u003e\n\u003c\/li\u003e \u003c\/ul\u003e\n\u003c\/li\u003e \u003cli\u003eVoltage measurement \u003cul\u003e \u003cli\u003eTotal accuracy: �±(0.1% + 1.5 mV)\u003c\/li\u003e \u003cli\u003eSample Rate: 1ksps \u003cbr\u003e \u003cbr\u003e\n\u003c\/li\u003e \u003c\/ul\u003e\n\u003c\/li\u003e \u003cli\u003eUART \u003cul\u003e \u003cli\u003eBitrate: 110bps - 5.25Mbps \u003cbr\u003e \u003cbr\u003e\n\u003c\/li\u003e \u003c\/ul\u003e\n\u003c\/li\u003e \u003cli\u003eDigital I\/O; GPO1, GPO2, TX \u003cul\u003e \u003cli\u003eV\u003csub\u003eIO\u003c\/sub\u003e Expansion port operating voltage: 1.2V - 5V\u003c\/li\u003e \u003cli\u003eV\u003csub\u003eIL\u003c\/sub\u003e Low-level input voltage: V\u003csub\u003eIO\u003c\/sub\u003e * 0.2V\u003c\/li\u003e \u003cli\u003eV\u003csub\u003eIH\u003c\/sub\u003e High-level input voltage: V\u003csub\u003eIO\u003c\/sub\u003e * 0.8V\u003c\/li\u003e \u003cli\u003eI\u003csub\u003emax\u003c\/sub\u003e Maximum sink\/source current: 10 mA\u003c\/li\u003e \u003c\/ul\u003e\n\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eDocuments:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003e\u003ca href=\"https:\/\/cdn.sparkfun.com\/assets\/9\/7\/0\/1\/8\/Otii_Arc_TechSpec_2021.pdf\"\u003eOtii Technical Specifications\u003c\/a\u003e\u003c\/li\u003e \u003cli\u003e\u003ca href=\"https:\/\/cdn.sparkfun.com\/assets\/5\/2\/2\/a\/e\/Qoitech_How_accurate_is_my_measurement.pdf\"\u003eHow accurate is my measurement?\u003c\/a\u003e\u003c\/li\u003e \u003cli\u003e\u003ca href=\"https:\/\/www.qoitech.com\/docs\/quick-start\/connect-otii-arc\"\u003eQuick start\u003c\/a\u003e\u003c\/li\u003e \u003cli\u003e\u003ca href=\"https:\/\/www.qoitech.com\/docs\/user-manual\/otii\"\u003eUser manual\u003c\/a\u003e\u003c\/li\u003e \u003cli\u003e\u003ca href=\"https:\/\/www.qoitech.com\/docs\/advanced\/scripting-with-lua\"\u003eAdvanced guides\u003c\/a\u003e\u003c\/li\u003e \u003cli\u003e\u003ca href=\"https:\/\/www.qoitech.com\/techpapers\/\"\u003eTech Papers\u003c\/a\u003e\u003c\/li\u003e \u003cli\u003e\u003ca href=\"https:\/\/www.qoitech.com\/download\/\"\u003eSoftware and firmware download\u003c\/a\u003e\u003c\/li\u003e \u003cli\u003e\u003ca href=\"https:\/\/www.qoitech.com\/buy\/\"\u003eAdditional Toolbox Software for purchase\u003c\/a\u003e\u003c\/li\u003e \u003cli\u003e\u003ca href=\"https:\/\/www.qoitech.com\/faq\/\"\u003eFAQs\u003c\/a\u003e\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eVideos\u003c\/strong\u003e\u003c\/p\u003e \u003cdiv class=\"flex-video-wrap clearfix\"\u003e \u003cdiv class=\"flex-video widescreen img\"\u003e \u003ciframe src=\"https:\/\/www.youtube.com\/embed\/HzBx026YOJk\/?autohide=1\u0026amp;border=0\u0026amp;wmode=opaque\u0026amp;enablejsapi=1\" frameborder=\"0\" allowfullscreen width=\"560\" height=\"315\"\u003e\u003c\/iframe\u003e \u003c\/div\u003e \u003c\/div\u003e","brand":"sparkfun-10","offers":[{"title":"Default Title","offer_id":40054701752405,"sku":"18585:TOL-18585:spark","price":128820.0,"currency_code":"INR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1034\/1611\/products\/18585-Otii_Arc-01.jpg?v=1651344156","url":"https:\/\/www.tanotis.com\/products\/sparkfun-otii-arc","provider":"Tanotis","version":"1.0","type":"link"}