{"product_id":"adafruit-can-bus-featherwing-mcp2515","title":"Adafruit CAN Bus FeatherWing - MCP2515","description":"\u003cp\u003e\u003ca href=\"https:\/\/en.wikipedia.org\/wiki\/CAN_bus\"\u003eCAN Bus is a small-scale networking standard\u003c\/a\u003e, originally designed for cars and, yes, busses, but is now used for many robotics or sensor networks that need better range and addressing than I2C, and don't have the pins or computational ability to talk on Ethernet. CAN is 2 wire differential, which means it's good for long distances and noisy environments.\u003c\/p\u003e\n\u003cp\u003eMessages are sent at about 1Mbps rate - you set the frequency for the bus and then all 'joiners' must match it, and have an address before the packet so that each node can listen in to messages just for it. New nodes can be attached easily because they just need to connect to the two data lines anywhere in the shared net. Each CAN devices sends messages whenever it wants, and thanks to some clever data encoding, can detect if there's a message collision and retransmit later. \u003c\/p\u003e\n\u003cp\u003eIf you'd like to connect your Feather to a CAN Bus, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAdafruit CAN Bus FeatherWing\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003ewith MCP2515 controller and TJA1051\/3 transceiver will work with any and all Feathers!\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.microchip.com\/en-us\/product\/MCP2515\"\u003eThe controller used is the MCP2515, an extremely popular and well-supported chipset\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003ethat has drivers in Arduino and\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/github.com\/adafruit\/Adafruit_CircuitPython_MCP2515\"\u003eCircuitPython\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eand only requires an SPI port and two pins for chip-select and IRQ. Use it to send and receive messages in either standard or extended format at up to 1 Mbps.\u003c\/p\u003e\n\u003cp\u003eWe've added a few nice extras to this Feather to make it useful in many common CAN scenarios:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/www.adafruit.com\/product\/3661\"\u003e\u003cstrong\u003e5V charge-pump voltage generator\u003c\/strong\u003e\u003c\/a\u003e, so even though you are running 3.3V on a Feather board, it will generate a nice clean 5V as required by the transciever.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003ca href=\"https:\/\/www.adafruit.com\/product\/725\"\u003e3.5mm terminal block\u003c\/a\u003e\u003c\/strong\u003e that can be soldered in to get quick access to the High and Low data lines as well as a ground pin.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e120 ohm termination resistor on board\u003c\/strong\u003e, you can remove the termination easily by cutting the jumper marked TERM on the top of the board.\u003c\/li\u003e\n\u003cli\u003eA spot that one can solder an\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eoptional (not included!) \u003ca href=\"https:\/\/www.digikey.com\/short\/3ph0d377\"\u003eedge-launch DE-9 connector\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003ethat is commonly used for connecting to CAN devices. L is connected to pin 2 and H is connected to pin 7.\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.adafruit.com\/product\/4841\"\u003eYou could then plug this into an ODB-II cable to connect to a car's CAN network\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003e- you'll still need software to decode the messages though!\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePre-connected CS and INT pins\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eon the two pins to the left of the I2C Feather port - usually these are pins #5 and #6 but some feathers may have different numbering! You can cut the bottom solder jumpers and use the breakout pads to connect to any two IO pins you like.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eEach order comes with an assembled 'Wing, terminal block and header. You will need to solder in the header yourself but its a quick task.\u003c\/p\u003e\n\u003ch2\u003eTechnical Details\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/www.microchip.com\/en-us\/product\/MCP2515\"\u003eMCP2515 Specifications\u003c\/a\u003e (\u003ca href=\"https:\/\/www.microchip.com\/en-us\/product\/MCP2515\"\u003emore at product page here\u003c\/a\u003e)\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ctable role=\"presentation\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBitrate Max [MBits\/s]\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCAN Controllers\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInternal CAN Clock\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLPM Current Max [uA]\u003c\/td\u003e\n\u003ctd\u003e0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMessage RAM [KB]\u003c\/td\u003e\n\u003ctd\u003e0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Voltage Min. [V]\u003c\/td\u003e\n\u003ctd\u003e2.7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Voltage Max. [V]\u003c\/td\u003e\n\u003ctd\u003e5.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRx Buffers\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSPI Interface\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSerial Bus Speed [MHz]\u003c\/td\u003e\n\u003ctd\u003e10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStandby Current Max [uA]\u003c\/td\u003e\n\u003ctd\u003e0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature Min. [°C]\u003c\/td\u003e\n\u003ctd\u003e-40\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature Max. [°C]\u003c\/td\u003e\n\u003ctd\u003e125\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTime Stamp (Bits)\u003c\/td\u003e\n\u003ctd\u003e0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTX Buffers\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTX Event FIFO\u003c\/td\u003e\n\u003ctd\u003e0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTX Queue\u003c\/td\u003e\n\u003ctd\u003e0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCAN FD\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTJA1051\/3\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.nxp.com\/docs\/en\/data-sheet\/TJA1051.pdf\"\u003eDatasheet\u003c\/a\u003e\u003c\/strong\u003e\u003cbr\u003e \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eProduct Dimensions: 50.6mm x 22.7mm x 4.0mm \/ 2.0\" x 0.9\" x 0.2\"\u003c\/p\u003e\n\u003cp\u003eProduct Weight: 4.5g \/ 0.2oz\u003c\/p\u003e\n\u003cdiv class=\"col-lg-2 col-md-3 col-sm-3 col-xs-4\"\u003e\u003cimg height=\"80\" width=\"145\" alt=\"RoHS 2 2011 65 EU Compliant\" src=\"https:\/\/www.adafruit.com\/includes\/templates\/shop2019\/images\/RoHS2_2011_65_EU.svg\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"col-lg-2 col-md-3 col-sm-3 col-xs-4\"\u003e\u003cimg height=\"80\" width=\"145\" alt=\"RoHS 2 2015 863 EU Compliant\" src=\"https:\/\/www.adafruit.com\/includes\/templates\/shop2019\/images\/RoHS2_2015_863_EU.svg\"\u003e\u003c\/div\u003e","brand":"Adafruit","offers":[{"title":"Default Title","offer_id":40804494213203,"sku":"ADA5709","price":12.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0174\/1800\/files\/5709-00.jpg?v=1684934773","url":"https:\/\/shop.pimoroni.com\/en-eu\/products\/adafruit-can-bus-featherwing-mcp2515","provider":"Pimoroni Ltd","version":"1.0","type":"link"}