{"title":"SparkFun Logic Level Converter - Bi-Directional","handle":"sparkfun-logic-level-converter-bi-directional","url":"/products/sparkfun-logic-level-converter-bi-directional","description":"The SparkFun Bi-Directional Logic Level Converter safely translates signals between different voltage levels — stepping 5V down to 3.3V and 3.3V up to 5V on the same channel. It also works with 2.8V and 1.8V devices, making it a versatile bridge between mixed-voltage systems.\n\nEach board provides 4 bi-directional channels with clearly labelled high-side and low-side pins. Simply connect your high voltage to HV, low voltage to LV, and a common ground — signals are shifted automatically in both directions.\n\nKey Features\n\n\nBi-Directional – Steps up and steps down on the same channel simultaneously\n\n4 Channels – Convert 4 signals at once (2 inputs + 2 outputs per side)\n\nFlexible Voltage – Works with 1.8V, 2.8V, 3.3V, and 5V logic levels\n\nBSS138 MOSFETs – Reliable, proven level-shifting circuit\n\nCompact – 16.05 × 13.33 mm (0.63\" × 0.52\")\n\n\nIdeal For\n\nConnecting 3.3V sensors to 5V Arduino boards\nInterfacing Raspberry Pi (3.3V) with 5V peripherals\nI²C and SPI bus level shifting\nAny project mixing different logic voltage levels\n\n\nPackage Contents\n\n1× SparkFun Bi-Directional Logic Level Converter\n\n\nResources\n\nHookup Guide\nSchematic (PDF)\nBSS138 Datasheet (PDF)\nGitHub – Design Files\n","vendor":"SparkFun","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":10749,"title":"Default Title","sku":"SF-BOB-12009","price":7.75,"compare_at_price":0.0,"on_sale":false,"in_stock":true,"available_quantity":3997,"option1":"Default Title"}]}