{"title":"SparkFun RS232 Shifter SMD (No DB9)","handle":"sparkfun-rs232-shifter-smd-no-db9","url":"/products/sparkfun-rs232-shifter-smd-no-db9","description":"A compact RS232-to-TTL level shifter board that converts both TX and RX lines bidirectionally. Powered from your target application's supply voltage, it automatically converts RS232 signals to match — run it at 5 V for 5 V TTL, or at 2.8 V for 2.8 V CMOS TTL levels. Includes TX and RX indicator LEDs.\n\nThis version has no DB9 connector attached, making it suitable for field installations and projects where RS232 serial comes from non-DB9 sources.\n\nKey Features\n\n\nBidirectional RS232 ↔ TTL – Converts both TX and RX lines\n\nVoltage Flexible – Operates at any supply voltage, converting RS232 to matching TTL levels\n\nTX/RX Indicator LEDs – Visual confirmation of data flow\n\nWide Baud Rate Support – 300 bps to 115,200 bps\n\nNo DB9 Connector – Bare board for custom wiring\n\n\nSpecifications\n\n\nConversion: RS232 ↔ TTL (TX and RX)\n\nSupply Voltage: Application-dependent (matches TTL output level)\n\nBaud Rate: 300–115,200 bps\n\nDimensions: 1.2\" × 1.1\" (30.5 × 27.9 mm)\n\n\nIdeal For\n\nMicrocontroller-to-computer serial communication\nField installations with RS232 devices\nLegacy serial equipment integration\n\n\nPackage Contents\n\n1× RS232 Shifter SMD board (no DB9)\n\n\nResources\n\nSchematic (PDF)\nEagle Files (ZIP)\nGitHub Repository\n","vendor":"SparkFun","product_type":"physical","in_stock":false,"options":[],"variants":[{"id":10365,"title":"Default Title","sku":"SF-PRT-08780","price":25.42,"on_sale":false,"in_stock":false,"available_quantity":0,"option1":"Default Title"}]}