{"product_id":"sparkfun-magnetic-imaging-tile-8x8","title":"SparkFun Magnetic Imaging Tile - 8x8","description":"\u003cp\u003eThe Magnetic Imaging Tile uses an array of 64 hall effect sensors to convert magnetic fields to the visual spectrum. That's right! You can now see magnetic fields in real time! As is to be expected, there are caveats: the magnetic sensors used on the tile are some of the most sensitive on the market but you need to be within 1 to 2 centimeters of the tile to get a good image.\u003c\/p\u003e \u003cp\u003eThe Magnetic Imaging Tile uses the following components:\u003c\/p\u003e \u003cul\u003e \u003cli\u003eMagnetic Sensor (64 pixels): DRV5053VA -90mV\/mT sensitivity\u003c\/li\u003e \u003cli\u003eAnalog to Digital Conversion: AD7680 16-bit 100kSPS\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eWith a 16-bit ADC and a 3.3V range this is approximately 50mV per bit. The Magnetic Imaging Tile is able to detect roughly +\/- 0.5mT per bit.\u003c\/p\u003e \u003cp\u003eThe demo shown in the animated gifs don't quite give the Magnetic Imaging Tile justice! The frame rate of gifs is too low! Please see \u003ca href=\"https:\/\/www.youtube.com\/watch?v=vxOuoWygxy0\"\u003ePeter's demo video\u003c\/a\u003e for some amazing visuals. For our demo in the gif we used a \u003ca href=\"https:\/\/www.sparkfun.com\/products\/13664\"\u003eSAMD21 Mini\u003c\/a\u003e to clock out the ADC data to the serial port at 115200. The serial is then parsed by a Processing sketch. All software is open source and available in the repo. This setup can achieve over 76 frames per second. With buffering the setup is capable of 200 fps. The ChipKit MAX32 is also supported and can achieve around 2,000fps. A faster processor should be able to achieve 1500fps (the 100kSPS limit of the ADC). The raw analog signal is also exposed. This allows processors that have built-in faster ADC to convert the signal directly. The theoretical limit of the DRV5053 is around 20,000 fps but would require a very fast ADC.\u003c\/p\u003e \u003cp\u003eThis is a collaboration with Peter Jansen of the \u003ca href=\"http:\/\/www.tricorderproject.org\/\"\u003e\"Open Source Science Tricorder Project\u003c\/a\u003e. You can read about his work on the project on \u003ca href=\"https:\/\/hackaday.io\/project\/18518-iteration-8\/log\/91551-a-third-high-speed-magnetic-imager-tile\"\u003eHack A Day\u003c\/a\u003e.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e The board label (\u003ca href=\"https:\/\/www.sparkfun.com\/sparkx\/blog\/2610\"\u003ethey look great\u003c\/a\u003e, don't they?) for 3V3 is correct. But you can also safely power the board with 5V. This will increase the overall resolution of the ADC and improve the performance.\u003c\/p\u003e \u003cp\u003eWe do not plan to regularly produce SparkX products so get them while they�re hot!\u003c\/p\u003e \u003cdiv class=\"alert alert-warning\"\u003e\n\u003cb\u003eExperimental Product:\u003c\/b\u003e \u003ca href=\"https:\/\/www.sparkfun.com\/sparkx\"\u003eSparkX\u003c\/a\u003e products are rapidly produced to bring you the most cutting edge technology as it becomes available. These products are tested but come with no guarantees. Live technical support is not available for SparkX products. Head on over to our \u003ca href=\"https:\/\/forum.sparkfun.com\/\"\u003eforum\u003c\/a\u003e for support or to ask a question.\u003c\/div\u003e \u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003ePowered with 3.3V to 5V\u003c\/li\u003e \u003cli\u003eUses approximately 150mA during sensing at 3.3V\u003c\/li\u003e \u003cli\u003eSize: 52x34mm\u003c\/li\u003e \u003cli\u003eBoards can be tiled next to each other to increase field size with a one 'pixel' gap between boards.\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\/3\/c\/4\/0\/6\/drv5053.pdf\"\u003eDRV5053VA Hall Effect Sensor Datasheet\u003c\/a\u003e\u003c\/li\u003e \u003cli\u003e\u003ca href=\"https:\/\/cdn.sparkfun.com\/assets\/1\/c\/0\/8\/f\/AD7680.pdf\"\u003eAD7680 16-Bit 100kSPS ADC Datasheet\u003c\/a\u003e\u003c\/li\u003e \u003cli\u003e\u003ca href=\"https:\/\/cdn.sparkfun.com\/assets\/9\/3\/3\/8\/4\/Magnetic-Imaging-Tile-Schematic.pdf\"\u003eMagnetic Imaging Tile Schematic\u003c\/a\u003e\u003c\/li\u003e \u003cli\u003e\u003ca href=\"https:\/\/cdn.sparkfun.com\/assets\/7\/c\/7\/a\/4\/Magnetic-Imaging-Tile.zip\"\u003eEagle Files\u003c\/a\u003e\u003c\/li\u003e \u003cli\u003e\u003ca href=\"https:\/\/cdn.sparkfun.com\/assets\/5\/9\/0\/4\/f\/magtile_processing_visualization.zip\"\u003eProcessing Sketch\u003c\/a\u003e\u003c\/li\u003e \u003cli\u003e\u003ca href=\"https:\/\/cdn.sparkfun.com\/assets\/a\/3\/a\/0\/b\/Example1_BasicReadings.zip\"\u003eArduino Sketch\u003c\/a\u003e\u003c\/li\u003e \u003cli\u003eWhile the Processing Sketch and Arduino Sketch are available above we recommend getting the latest sketches from the \u003ca href=\"https:\/\/github.com\/sparkfunX\/Magnetic_Imaging_Tile\"\u003eMagnetic Imaging Tile repo\u003c\/a\u003e.\u003c\/li\u003e \u003c\/ul\u003e\u003cbr\u003eAll product and company names are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them.","brand":"sparkfun-10","offers":[{"title":"Default Title","offer_id":39501707837525,"sku":"14652:SPX-14652:spark","price":25795.0,"currency_code":"INR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1034\/1611\/products\/14652-Magnetic_Imaging_Tile_-_8x8-01.jpg?v=1629002827","url":"https:\/\/www.tanotis.com\/products\/sparkfun-magnetic-imaging-tile-8x8","provider":"Tanotis","version":"1.0","type":"link"}