OBDII UART Adapter

OBD-II to UART adapter connecting Arduino to a vehicle's diagnostic port. Supports CAN bus and KWP2000 protocols; provides OBD data and board power supply.

Start wiring

Ethernet · UART · SPI · Shield

Confirm the data interface matches your host board.

Wired comms

115 other options

W5100/W5500 Ethernet shields, LAN8720 RMII PHY boards, MAX3243 RS-232 level shifters, isolated USB-to-RS485 converters, CAN FD bridges, and passive or active PoE injectors and splitters.

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8-Channel Isolated Analog Data Acquisition Module visual preview

Related groups

4 groups

Bluetooth

BLE 5-era modules (nRF52840, MDBT50Q), XIAO MG24 boards with Matter-over-Thread, Bluefruit UART/SPI bridges, HM-11 serial modules, and BLE sniffers cover different jobs and different hosts.

Wireless & comms · Bluetooth modules · 73 parts

Cellular

Adafruit FONA GSM breakouts, the Gravity Air780EU 4G Cat 1 module, Dragino NB-IoT Shield-B8, Pycom FiPy, Quectel and SIMCom M.2 5G modems, and the RockBLOCK 9603 Iridium modem each target a different network tier.

Wireless & comms · Cellular · 58 parts

GNSS & GPS

Adafruit Ultimate GPS (PA1616S/PA1616D), NEO-6M and NEO-M9N u-blox breakouts, Gravity GNSS BeiDou boards with I2C/UART, and 4G or LoRa RTK kits — accuracy and constellation requirements split them.

Wireless & comms · GNSS & GPS · 67 parts

LoRa & RF

RFM95W and SX1262 LoRa transceivers, Wio-E5 LoRaWAN modules, SX1302 gateways, Digi XBee mesh radios, 433 MHz ASK serial links, Dragino IoT sensor nodes, and the SDRplay RSP2 wideband SDR receiver.

Wireless & comms · LoRa & RF modules · 95 parts