{"product_id":"freematics-one-model-b","title":"Freematics ONE+ Model B","description":"\u003cdiv id=\"tab-description\" class=\"tab-content\" style=\"display: block;\"\u003e\n\u003cp class=\"wp-block-paragraph\"\u003e\u003cstrong\u003eProgrammable OBD-II telematics hardware with ESP32, 4G LTE, GNSS, CAN bus access, and microSD logging.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"wp-block-paragraph\"\u003eFreematics ONE+ Model B is a compact, programmable OBD-II device designed for vehicle telemetry, data logging, GPS tracking, CAN bus monitoring, and connected automotive projects. It plugs directly into a vehicle’s OBD port and integrates an ESP32 MCU, 4G LTE cellular module, GNSS receiver, motion sensor, microSD storage, Bluetooth, Wi-Fi, and useful onboard peripherals in a single enclosure.\u003c\/p\u003e\n\u003cp class=\"wp-block-paragraph\"\u003eWhether you are building a fleet-tracking prototype, an automotive data logger, a cloud-connected telematics device, or a custom vehicle monitoring solution, Freematics ONE+ Model B gives you a ready-to-program hardware platform without requiring you to build the electronics from scratch.\u003c\/p\u003e\n\u003ch1 class=\"wp-block-heading\"\u003eKey Features\u003c\/h1\u003e\n\u003cul class=\"wp-block-list\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eArduino-programmable ESP32 platform\u003c\/strong\u003e with dual-core processing, Wi-Fi, and Bluetooth\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect OBD-II access\u003c\/strong\u003e for standard PIDs, diagnostic trouble codes, VIN, and vehicle ECU data\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCAN bus sniffing\u003c\/strong\u003e for advanced vehicle data monitoring\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated GNSS\u003c\/strong\u003e for high-update-rate vehicle positioning\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated 4G LTE cellular connectivity\u003c\/strong\u003e for real-time data transmission\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotion sensing\u003c\/strong\u003e for G-force measurement, movement detection, and low-power monitoring\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVehicle battery voltage reading\u003c\/strong\u003e through the OBD connection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003emicroSD storage support\u003c\/strong\u003e for local data logging\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBLE app connectivity\u003c\/strong\u003e for configuration and monitoring from a mobile device\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExternal I\/O socket\u003c\/strong\u003e for connecting sensors, controllers, or custom peripherals\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch1 class=\"wp-block-heading\"\u003eHardware Overview\u003c\/h1\u003e\n\u003ch2 class=\"wp-block-heading\"\u003eSpecifications\u003c\/h2\u003e\n\u003cul class=\"wp-block-list\"\u003e\n\u003cli\u003eEspressif ESP32 with 16MB Flash, 8MB PSRAM, 32K RTC\u003c\/li\u003e\n\u003cli\u003eBuilt-in 802.11 b\/g\/n Wi-Fi\u003c\/li\u003e\n\u003cli\u003eDual-mode Bluetooth, including Classic Bluetooth and BLE\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"text_exposed_show\"\u003eIntegrated ICM-42627 motion sensor\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"text_exposed_show\"\u003eIntegrated u-blox M9 \u003c\/span\u003eGNSS module and antenna\u003c\/li\u003e\n\u003cli\u003eIntegrated SIM7670 LTE CAT-1 cellular module\u003c\/li\u003e\n\u003cli\u003eBuilt-in buzzer\u003c\/li\u003e\n\u003cli\u003eCompact enclosure: 60 × 48 × 20 mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 class=\"wp-block-heading\"\u003ePhysical Interfaces\u003c\/h2\u003e\n\u003cul class=\"wp-block-list\"\u003e\n\u003cli\u003eOBD-II male connector\u003c\/li\u003e\n\u003cli\u003emicroUSB port\u003c\/li\u003e\n\u003cli\u003emicroSD card slot\u003c\/li\u003e\n\u003cli\u003eSIM card slot\u003c\/li\u003e\n\u003cli\u003eGPIO socket (Molex)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 class=\"wp-block-heading\"\u003eOBD-II Compatibility\u003c\/h2\u003e\n\u003cp class=\"wp-block-paragraph\"\u003eFreematics ONE+ plugs directly into the OBD port, which is usually located under the steering column. It supports common OBD-II vehicle protocols and can access standard diagnostic and vehicle telemetry data from compatible ECUs.\u003c\/p\u003e\n\u003cdiv class=\"wp-block-image\"\u003e\n\u003cfigure class=\"aligncenter\"\u003e\u003ca href=\"https:\/\/blog.freematics.com\/wp-content\/uploads\/2012\/03\/obd_sticker.gif\" rel=\"shadowbox[sbpost-576];player=img;\"\u003e\u003cimg alt=\"obd_sticker\" class=\"wp-image-3384\" src=\"https:\/\/blog.freematics.com\/wp-content\/uploads\/2012\/03\/obd_sticker.gif\"\u003e\u003c\/a\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003cp class=\"wp-block-paragraph\"\u003e \u003c\/p\u003e\n\u003cp class=\"wp-block-paragraph\"\u003eVehicles using following vehicle protocols are supported.\u003c\/p\u003e\n\u003cul class=\"wp-block-list\"\u003e\n\u003cli\u003eCAN 500Kbps\/29bit\u003c\/li\u003e\n\u003cli\u003eCAN 250Kbps\/29bit\u003c\/li\u003e\n\u003cli\u003eCAN 500Kbps\/11bit\u003c\/li\u003e\n\u003cli\u003eCAN 250Kbps\/11bit\u003c\/li\u003e\n\u003cli\u003eKWP2000 Fast\u003c\/li\u003e\n\u003cli\u003eKWP2000 5Kbps\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 class=\"wp-block-heading\"\u003eExternal I\/O\u003c\/h2\u003e\n\u003cp class=\"wp-block-paragraph\"\u003eFreematics ONE+ Model B includes a 4-pin external I\/O socket for connecting additional sensors, controllers, or custom hardware. The socket provides two ESP32 GPIO pins, controllable VCC, and GND.\u003c\/p\u003e\n\u003cdiv class=\"wp-block-image\"\u003e\n\u003cfigure class=\"aligncenter\"\u003e\u003ca href=\"https:\/\/freematics.com\/pages\/wp-content\/uploads\/2020\/03\/f3_gpio.jpg\" rel=\"shadowbox[sbpost-7091];player=img;\"\u003e\u003cimg alt=\"\" class=\"wp-image-7409\" height=\"300\" src=\"https:\/\/freematics.com\/pages\/wp-content\/uploads\/2020\/03\/f3_gpio-300x300.jpg\" width=\"300\"\u003e\u003c\/a\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003cp class=\"wp-block-paragraph\"\u003eWith a Molex-to-2.54mm Dupont conversion cable, you can easily connect external components during prototyping or product development.\u003c\/p\u003e\n\u003cp class=\"wp-block-paragraph\"\u003eDupont connector wiring:\u003c\/p\u003e\n\u003cul class=\"wp-block-list\"\u003e\n\u003cli\u003eGreen: GPIO26\u003c\/li\u003e\n\u003cli\u003eBlack: GND\u003c\/li\u003e\n\u003cli\u003eRed: VCC\u003c\/li\u003e\n\u003cli\u003eWhite: GPIO34\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"wp-block-image\"\u003e\n\u003cfigure class=\"aligncenter\"\u003e\u003ca href=\"https:\/\/freematics.com\/pages\/wp-content\/uploads\/2018\/11\/f3_io_cable.jpg\" rel=\"shadowbox[sbpost-7091];player=img;\"\u003e\u003cimg alt=\"\" class=\"wp-image-7114\" height=\"300\" src=\"https:\/\/freematics.com\/pages\/wp-content\/uploads\/2018\/11\/f3_io_cable-300x300.jpg\" width=\"300\"\u003e\u003c\/a\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003cp class=\"wp-block-paragraph\"\u003e \u003c\/p\u003e\n\u003ch2 class=\"wp-block-heading\"\u003eGNSS Positioning\u003c\/h2\u003e\n\u003cp class=\"wp-block-paragraph\"\u003eFreematics ONE+ Model B integrates a u-blox M9 GNSS module with an active ceramic antenna for vehicle positioning. The GNSS module can be configured programmatically, while NMEA data is decoded in real time by the co-processor and made available to the ESP32 for logging, processing, or transmission.\u003c\/p\u003e\n\u003cdiv class=\"wp-block-image\"\u003e\n\u003cfigure class=\"aligncenter\"\u003e\u003ca href=\"https:\/\/freematics.com\/pages\/wp-content\/uploads\/2018\/11\/F3_1.jpg\" rel=\"shadowbox[sbpost-7091];player=img;\"\u003e\u003cimg alt=\"\" class=\"wp-image-7092\" height=\"300\" src=\"https:\/\/freematics.com\/pages\/wp-content\/uploads\/2018\/11\/F3_1-300x300.jpg\" width=\"300\"\u003e\u003c\/a\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003cp class=\"wp-block-paragraph\"\u003e \u003c\/p\u003e\n\u003ch2 class=\"wp-block-heading\"\u003eBluetooth and Mobile App Support\u003c\/h2\u003e\n\u003cp class=\"wp-block-paragraph\"\u003eFreematics ONE+ includes dual-mode Bluetooth capability and can connect to the \u003ca href=\"https:\/\/freematics.com\/software\/freematics-controller\/\" rel=\"noopener\" target=\"_blank\"\u003eFreematics Controller App\u003c\/a\u003e over BLE when using the supported \u003ca href=\"https:\/\/github.com\/stanleyhuangyc\/Freematics\/tree\/master\/firmware_v5\/datalogger\" rel=\"noopener\" target=\"_blank\"\u003edatalogger sketch\u003c\/a\u003e or \u003ca href=\"https:\/\/github.com\/stanleyhuangyc\/Freematics\/tree\/master\/firmware_v5\/telelogger\" rel=\"noopener\" target=\"_blank\"\u003etelelogger sketch\u003c\/a\u003e. This allows the device to be configured and monitored from a mobile device without needing a wired connection.\u003c\/p\u003e\n\u003cfigure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-2 is-layout-flex wp-block-gallery-is-layout-flex\"\u003e\n\u003cfigure class=\"wp-block-image size-large\"\u003e\u003ca href=\"https:\/\/freematics.com\/pages\/wp-content\/uploads\/2022\/03\/Screenshot_20220207-225950.png\" rel=\"shadowbox[sbpost-7091];player=img;\"\u003e\u003cimg alt=\"\" class=\"wp-image-7643\" data-id=\"7643\" src=\"https:\/\/freematics.com\/pages\/wp-content\/uploads\/2022\/03\/Screenshot_20220207-225950-473x1024.png\" style=\"width: 237px; height: 512px;\"\u003e\u003c\/a\u003e\u003c\/figure\u003e\n\u003cfigure class=\"wp-block-image size-large\"\u003e \u003c\/figure\u003e\n\u003c\/figure\u003e\n\u003ch2 class=\"wp-block-heading\"\u003eCellular Module\u003c\/h2\u003e\n\u003cp class=\"wp-block-paragraph\"\u003eModel B includes an integrated SIM7670 LTE CAT-1 cellular module for transmitting vehicle data over mobile networks.\u003c\/p\u003e\n\u003ch3 class=\"wp-block-heading\"\u003eSupported LTE Bands\u003c\/h3\u003e\n\u003cp class=\"wp-block-paragraph\"\u003eLTE-FDD: B1 \/ B2 \/ B3 \/ B4 \/ B5 \/ B7 \/ B8 \/ B12 \/ B13 \/ B18 \/ B19 \/ B20 \/ B25 \/ B26 \/ B28 \/ B66 \/ B71\u003cbr\u003eLTE-TDD: B34 \/ B38 \/ B39 \/ B40 \/ B41\u003c\/p\u003e\n\u003ch3 class=\"wp-block-heading\"\u003eData Transfer Speed\u003c\/h3\u003e\n\u003cul class=\"wp-block-list\"\u003e\n\u003cli\u003eDownload: up to 10Mbps\u003c\/li\u003e\n\u003cli\u003eUpload: up to 5Mbps\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 class=\"wp-block-heading\"\u003eSIM Card\u003c\/h2\u003e\n\u003cp class=\"wp-block-paragraph\"\u003eA microSIM card is required to use cellular network connectivity. Insert the SIM card into the slot as shown below.\u003c\/p\u003e\n\u003cdiv class=\"wp-block-image\"\u003e\n\u003cfigure class=\"aligncenter\"\u003e\u003ca href=\"https:\/\/freematics.com\/pages\/wp-content\/uploads\/2019\/04\/F2_SIM_CARD.jpg\" rel=\"shadowbox[sbpost-7091];player=img;\"\u003e\u003cimg alt=\"\" class=\"wp-image-7189\" height=\"300\" src=\"https:\/\/freematics.com\/pages\/wp-content\/uploads\/2019\/04\/F2_SIM_CARD-300x300.jpg\" width=\"300\"\u003e\u003c\/a\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003cp class=\"wp-block-paragraph\"\u003eGlobal SIM cards like \u003ca href=\"https:\/\/hologram.io\/products\/iot-sim-card\/\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eHologram IoT SIM card\u003c\/a\u003e are supported.\u003c\/p\u003e\n\u003ch2 class=\"wp-block-heading\"\u003eMicroSD\u003c\/h2\u003e\n\u003cp class=\"wp-block-paragraph\"\u003eThe built-in microSD slot is connected to the ESP32 via SPI and can be accessed using the standard Arduino SD library. This makes it easy to log OBD data, GNSS coordinates, sensor readings, and diagnostic information locally.\u003c\/p\u003e\n\u003ch2 class=\"wp-block-heading\"\u003eBuzzer\u003c\/h2\u003e\n\u003cp class=\"wp-block-paragraph\"\u003eThe internal buzzer is connected to ESP32 GPIO25 and can be driven using PWM or DAC output. It can be used for alerts, status feedback, or user interaction in custom applications.\u003c\/p\u003e\n\u003ch2 class=\"wp-block-heading\"\u003eLow-Power Mode\u003c\/h2\u003e\n\u003cp class=\"wp-block-paragraph\"\u003eFreematics ONE+ can enter and exit low-power mode programmatically. When GPS, cellular, and Wi-Fi are powered off, power consumption is around 10mA. This helps reduce vehicle battery drain while still allowing the main controller to run lightweight tasks such as motion detection through the onboard MEMS sensor.\u003c\/p\u003e\n\u003ch1 class=\"wp-block-heading\"\u003eModel Comparison\u003c\/h1\u003e\n\u003cfigure class=\"wp-block-table\"\u003e\n\u003ctable class=\"has-fixed-layout\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003e \u003c\/th\u003e\n\u003cth\u003eModel B\u003c\/th\u003e\n\u003cth\u003e\u003ca href=\"https:\/\/freematics.com\/pages\/products\/freematics-one-plus\/\"\u003eModel A\u003c\/a\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRAM Configuration\u003c\/td\u003e\n\u003ctd\u003e520KB IRAM + 8MB PSRAM\u003c\/td\u003e\n\u003ctd\u003e520KB IRAM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRTC\u003c\/td\u003e\n\u003ctd\u003eExternal 32K\u003c\/td\u003e\n\u003ctd\u003eBuilt-in (less accurate)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCellular Module\u003c\/td\u003e\n\u003ctd\u003eIntegrated 4G LTE module\u003c\/td\u003e\n\u003ctd\u003eOptional cellular module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGNSS\u003c\/td\u003e\n\u003ctd\u003eIntegrated M8030 10Hz GNSS module and antenna\u003c\/td\u003e\n\u003ctd\u003eVia external GNSS receiver\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExternal I\/O\u003c\/td\u003e\n\u003ctd\u003e2x GPIO for digital I\/O, analog input, serial UART etc.\u003c\/td\u003e\n\u003ctd\u003eOccupied if GNSS receiver is connected\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCo-Processor Features\u003c\/td\u003e\n\u003ctd\u003eVehicle ECU interfacing\u003cbr\u003eGNSS data processing\u003c\/td\u003e\n\u003ctd\u003eVehicle ECU interfacing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch1 class=\"wp-block-heading\"\u003eDevelopment\u003c\/h1\u003e\n\u003cp class=\"wp-block-paragraph\"\u003eFreematics ONE+ Model B is designed for developers who want to build custom vehicle-connected products without starting from bare hardware.\u003c\/p\u003e\n\u003cp class=\"wp-block-paragraph\"\u003eFreematics provides a dedicated \u003ca href=\"https:\/\/github.com\/stanleyhuangyc\/Freematics\/tree\/master\/libraries\/FreematicsPlus\"\u003eArduino library\u003c\/a\u003e for accessing the device’s hardware resources, along with functional \u003ca href=\"https:\/\/github.com\/stanleyhuangyc\/Freematics\/tree\/master\/firmware_v5\/\"\u003ereference Arduino sketches\u003c\/a\u003e for common use cases. With basic Arduino knowledge, you can begin collecting vehicle data, logging it to microSD, reading GNSS coordinates, transmitting data over cellular or Wi-Fi, and building your own automotive applications.\u003c\/p\u003e\n\u003cp class=\"wp-block-paragraph\"\u003eFor a simpler development workflow, \u003ca href=\"https:\/\/freematics.com\/software\/arduino-builder\/\" rel=\"noopener\" target=\"_blank\"\u003eFreematics Builder\u003c\/a\u003e provides a graphical interface for configuring, compiling, and uploading Arduino sketches. Advanced users can also develop with \u003ca href=\"http:\/\/platformio.org\/platformio-ide\" rel=\"noopener noreferrer\" target=\"_blank\"\u003ePlatformIO\u003c\/a\u003e, Arduino IDE, Arduino makefile, or ESP-IDF-based workflows.\u003c\/p\u003e\n\u003cp class=\"wp-block-paragraph\"\u003eFor setup instructions and development details, refer to the \u003ca href=\"https:\/\/freematics.com\/pages\/products\/freematics-one-plus\/guide\/\"\u003eDevelopers Guide\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Freematics","offers":[{"title":"Default Title","offer_id":52654144946476,"sku":"F3","price":184.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0684\/1879\/7868\/products\/F1P_1.jpg?v=1669347142","url":"https:\/\/shop.freematics.com\/products\/freematics-one-model-b","provider":"Freematics Store","version":"1.0","type":"link"}