{"product_id":"arduino-compatible-rs-485-linear-hall-sensor-board-for-magnetic-field-sensing","title":"Arduino-Compatible RS-485 Linear Hall Sensor Board for Magnetic Field Sensing","description":"\u003cp\u003eThe RS-485 Linear Hall Sensor Interface Board is an Arduino-compatible module built around an ATmega328 microcontroller. It combines two Texas Instruments products: a\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.ti.com\/product\/SN65HVD08\/part-details\/SN65HVD08DR\" target=\"_blank\"\u003eSN65HVD08DR\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003ehalf-duplex RS-485 transceiver with a\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/www.ti.com\/product\/DRV5053\" target=\"_blank\"\u003eDRV5053\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003elinear Hall-effect sensor on a single board. This creates a self-contained node that measures magnetic fields and reports data over an industrial RS-485 network.\u003c\/p\u003e\n\u003cp\u003eHeader connectors break out multiple I\/O lines, and the board includes a footprint for an optional 0.96-inch OLED display. This makes it useful as both a sensor node and a general-purpose RS-485 development platform. Figure 1 shows the assembled board.\u003c\/p\u003e\n\u003cp\u003eA simple, practical application is an ON\/OFF control system that operates over RS-485. Screw terminals handle the RS-485 A and B twisted-pair connections. All other signal lines break out onto 2.54 mm header connectors for easy interfacing with other boards, sensors, or an Arduino programmer.\u003c\/p\u003e\n\u003cp\u003eThe DRV5053 Hall sensor outputs an analog voltage proportional to magnetic field strength and polarity. The onboard ATmega328 reads this voltage on an analog input and transmits the value over the RS-485 bus, allowing the reading to be monitored or acted on remotely. In tests, the sensor produced ADC readings of roughly 6 for the south pole, 220 for centered (no field), and 440 for the north pole.\u003c\/p\u003e\n\u003ch3\u003eSpecs and Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSupply voltage: 5 V DC\u003c\/li\u003e\n\u003cli\u003eRS-485 communication, half-duplex, via SN65HVD08DR transceiver\u003c\/li\u003e\n\u003cli\u003eScrew terminal for RS-485 A\/B connection\u003c\/li\u003e\n\u003cli\u003eATmega328 microcontroller, Arduino-compatible\u003c\/li\u003e\n\u003cli\u003eDedicated programming and bootloader connector (CN4)\u003c\/li\u003e\n\u003cli\u003eOnboard linear Hall-effect sensor: DRV5053\u003c\/li\u003e\n\u003cli\u003eDRV5053 ADC output: 6 (south pole) – 220 (centered) – 440 (north pole)\u003c\/li\u003e\n\u003cli\u003eOnboard power LED and function LED (connected to D13)\u003c\/li\u003e\n\u003cli\u003eOptional 0.96-inch OLED display footprint (I2C, underside of PCB)\u003c\/li\u003e\n\u003cli\u003eOptional 433 MHz ASK RF module footprint\u003c\/li\u003e\n\u003cli\u003eMultiple general-purpose I\/O lines broken out on headers\u003c\/li\u003e\n\u003cli\u003e4 mm mounting holes at all four corners\u003c\/li\u003e\n\u003cli\u003ePCB dimensions: 60.33 mm x 26.51 mm\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"dotfry","offers":[{"title":"Default Title","offer_id":47210302636204,"sku":"S133","price":18.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0757\/6436\/7532\/files\/S133.jpg?v=1789459385","url":"https:\/\/dotfry.com\/products\/arduino-compatible-rs-485-linear-hall-sensor-board-for-magnetic-field-sensing","provider":"dotfry","version":"1.0","type":"link"}