{"product_id":"witmotion-wtgps-module","title":"WitMotion WTGPS+BD Multi-GNSS NMEA0183 Positioning Module (AT6558) with Antenna Options for Arduino\/FC","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\u003cp\u003eThe WitMotion WTGPS+BD is a multi-system GNSS positioning module designed for Arduino projects and flight control\/robotics integrations using serial (TTL) data output. It supports combined satellite reception (BDS\/GPS\/GLONASS and more) and is offered with different antenna selections, including external and ceramic antenna options, plus an optional WTGPS-M RS485\/MODBUS version for industrial-style communications.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eGNSSSoC: ZhongKeWei AT6558 (4-generation low-power GNSSSoC chip; “6-in-1 multi-mode satellite navigation chip”)\u003c\/li\u003e\n\u003cli\u003eMulti-system support: BDS, GPS, GLONASS, GALILEO, QZSS, SBAS\u003c\/li\u003e\n\u003cli\u003e32 channels\u003c\/li\u003e\n\u003cli\u003ePositioning precision: \u0026lt;2.5 m (CEP50)\u003c\/li\u003e\n\u003cli\u003eTracking sensitivity: -162 dBm\u003c\/li\u003e\n\u003cli\u003eType-C interface (plug and play) and reserved serial connection\u003c\/li\u003e\n\u003cli\u003eBuilt-in IPX interface for connecting external active antennas\u003c\/li\u003e\n\u003cli\u003eAntenna performance notes: less than 1.65 VSWR; built-in antenna detection circuit; π-type network impedance antenna (50Ω)\u003c\/li\u003e\n\u003cli\u003eFarad capacitance power storage: save data for 60 s after power off\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal reception\u003c\/td\u003e\n\u003ctd\u003eBDS, GPS, GLONASS, GALILEO, QZSS, SBAS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRF channel number\u003c\/td\u003e\n\u003ctd\u003e3-channel radio frequency; receive BDS, GPS \u0026amp; GLONASS simultaneously\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannels\u003c\/td\u003e\n\u003ctd\u003e32\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrecision\u003c\/td\u003e\n\u003ctd\u003e\u0026lt;2.5 m (CEP50)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCold start TTFF\u003c\/td\u003e\n\u003ctd\u003e≤32 s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHot start TTFF\u003c\/td\u003e\n\u003ctd\u003e≤1 s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecapture TTFF\u003c\/td\u003e\n\u003ctd\u003e≤1 s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapture time sensitivity\u003c\/td\u003e\n\u003ctd\u003eCold-start -148 dBm; Hot-start -156 dBm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecapture sensitivity\u003c\/td\u003e\n\u003ctd\u003e-160 dBm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTracking sensitivity\u003c\/td\u003e\n\u003ctd\u003e-162 dBm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAntenna VSWR\u003c\/td\u003e\n\u003ctd\u003eLess than 1.65\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAntenna impedance\u003c\/td\u003e\n\u003ctd\u003e50Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule dimensions\u003c\/td\u003e\n\u003ctd\u003e30 mm (height); 25.7 mm (width); 38 mm (overall height shown); 4.9 mm (thickness); 20 mm and 3 mm dimensions shown on drawing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003ePin Definition (WTGPS+BD board)\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eVCC\u003c\/td\u003e\n\u003ctd\u003eThe power supply must be connected to 3.3V-5V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRXD\u003c\/td\u003e\n\u003ctd\u003eSerial data input, TTL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTXD\u003c\/td\u003e\n\u003ctd\u003eSerial data output, TTL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGND\u003c\/td\u003e\n\u003ctd\u003eGround wire\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003cp\u003eBoard silkscreen indicates the serial header order as: GND \/ TXD \/ RXD \/ VCC.\u003c\/p\u003e\u003ch2\u003eAntenna Options\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eExternal Antenna\u003c\/strong\u003e: 3-meter wire; 27 dB high-gain omnidirectional active antenna; wider working coverage; built-in magnet.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCeramic Antenna\u003c\/strong\u003e: highly integrated design intended to ensure equipment operation (no further numeric parameters provided).\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWTGPS-M (RS485\/MODBUS version)\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRS485 interface, MODBUS protocol output (industrial communication standard-oriented)\u003c\/li\u003e\n\u003cli\u003eWiring note: A to A, B to B\u003c\/li\u003e\n\u003cli\u003eAluminum shell; IP68 waterproof\/dustproof; shockproof; suitable for harsh environments\u003c\/li\u003e\n\u003cli\u003eShielded cable designed for stable signal transmission (wording in source notes interference resistance)\u003c\/li\u003e\n\u003cli\u003eReceives external signals to enhance signal strength\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWTGPS-M Wire\/Pin Definition\u003c\/h3\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eRed\u003c\/td\u003e\n\u003ctd\u003eVCC\u003c\/td\u003e\n\u003ctd\u003ePower Supply (+5V~+36V)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eYellow\u003c\/td\u003e\n\u003ctd\u003eA\u003c\/td\u003e\n\u003ctd\u003eRS485 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGreen\u003c\/td\u003e\n\u003ctd\u003eB\u003c\/td\u003e\n\u003ctd\u003eRS485 B\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBlack\u003c\/td\u003e\n\u003ctd\u003eGND\u003c\/td\u003e\n\u003ctd\u003eGround Cable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eApplications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eVehicle navigation\u003c\/li\u003e\n\u003cli\u003eHandheld positioning\u003c\/li\u003e\n\u003cli\u003eWearable devices\u003c\/li\u003e\n\u003cli\u003eReplacing Ublox NEO series modules (as stated in source material)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eFor wiring\/selection support (TTL vs RS485, and antenna choice), contact support@rcdrone.top or visit https:\/\/rcdrone.top\/.\u003c\/p\u003e\u003ch2 id=\"details\"\u003eDetails\u003c\/h2\u003e\u003cdiv class=\"details-gallery\"\u003e\n\u003cimg alt=\"WitMotion WTGPS+BD GPS + BeiDou GNSS positioning module board with Type‑C port and mounting holes\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/WitMotion-WTGPS---BDGPSGLONASSQZSSNMEA0183-Module-With.webp?v=1783394481\"\u003e\u003cp\u003eWitMotion WTGPS+BD is a compact GNSS module for Arduino, robotics, and flight-control builds using TTL serial data output.\u003c\/p\u003e\n\u003cimg alt=\"AT6558 GNSSSoC feature summary listing multi-constellation support and low-power design\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/WitMotion-WTGPS---BDGPSGLONASSQZSSNMEA0183-Module-With_a5c16bcd-3521-4a94-82ce-1a22346e1d8a.webp?v=1783394490\"\u003e\u003cimg alt=\"Multi-system GNSS reception graphic highlighting 32 channels and combined BDS\/GPS\/GLONASS support\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/WitMotion-WTGPS---BDGPSGLONASSQZSSNMEA0183-Module-With_43ad4c19-4041-4a6d-84a0-904943ec0d68.webp?v=1783394503\"\u003e\u003cimg alt=\"Satellite search performance screen with notes on VSWR below 1.65 and antenna detection circuit\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/WitMotion-WTGPS---BDGPSGLONASSQZSSNMEA0183-Module-With_9ad6b3f7-a3b6-423e-8b3a-58e94403f3a2.webp?v=1783394514\"\u003e\u003cimg alt=\"GNSS sky plot display with satellite positions and multiple constellation indicators\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/WitMotion-WTGPS---BDGPSGLONASSQZSSNMEA0183-Module-With_cae0f25b-da60-406b-b038-216cfbc5d7a1.webp?v=1783394524\"\u003e\u003cimg alt=\"NMEA\/serial output demo with latitude, longitude, altitude, time, and satellite data tables\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/WitMotion-WTGPS---BDGPSGLONASSQZSSNMEA0183-Module-With_ec8adefc-1578-40da-af86-bd23b5c7e3cc.webp?v=1783394533\"\u003e\u003cimg alt=\"Antenna impedance performance collage with VSWR, return loss, and Smith chart test results\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/WitMotion-WTGPS---BDGPSGLONASSQZSSNMEA0183-Module-With_28137bbb-1c62-4bc4-b6d8-1b48e61daa6c.webp?v=1783394575\"\u003e\u003cimg alt=\"Benefits comparison chart: WitMotion vs others with plug-and-play USB, multi-GNSS, and faster cold start\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/WitMotion-WTGPS---BDGPSGLONASSQZSSNMEA0183-Module-With_ae9e95d4-6f35-4944-9d32-f2f24d813e27.webp?v=1783394585\"\u003e\u003cimg alt=\"Hardware callouts for IPX antenna connector, Type‑C interface, AT6558 chip, and serial header\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/WitMotion-WTGPS---BDGPSGLONASSQZSSNMEA0183-Module-With_58b8138b-53b1-4f36-b96c-df6dc6688495.webp?v=1783394595\"\u003e\u003cp\u003ePlug-and-play Type‑C plus an IPX connector supports either the onboard antenna option or an external active antenna.\u003c\/p\u003e\n\u003cimg alt=\"Specifications table for GNSS reception, TTFF, and tracking sensitivity up to -162 dBm\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/WitMotion-WTGPS---BDGPSGLONASSQZSSNMEA0183-Module-With_edcbcc10-2049-4c15-a68c-fab614e0a1e7.webp?v=1783394613\"\u003e\u003cimg alt=\"WTGPS+BD module dimensions drawing with 30×25.7 mm footprint, 4.9 mm thickness, and pin definitions\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/WitMotion-WTGPS---BDGPSGLONASSQZSSNMEA0183-Module-With_51d76260-4b32-443e-a6cd-88315ab3fad3.webp?v=1783394622\"\u003e\u003cp\u003ePin labels are provided for quick wiring: VCC (3.3–5V), RXD, TXD, and GND on the TTL serial header.\u003c\/p\u003e\n\u003cimg alt=\"WitMotion WTGPS external active antenna kit with 3‑meter cable and magnetic GNSS puck\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/WitMotion-WTGPS---BDGPSGLONASSQZSSNMEA0183-Module-With_0f8d65c6-c8c0-4141-8317-f301e595a927.webp?v=1783394633\"\u003e\u003cp\u003eChoose the external antenna kit when you need wider placement flexibility for stronger reception.\u003c\/p\u003e\n\u003cimg alt=\"Ceramic antenna option with patch antenna and lead for compact GNSS installations\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/WitMotion-WTGPS---BDGPSGLONASSQZSSNMEA0183-Module-With_bc07bfd0-a06f-443e-9040-88a70c8b2767.webp?v=1783394643\"\u003e\u003cp\u003eThe ceramic antenna option keeps the build highly integrated for space-constrained enclosures.\u003c\/p\u003e\n\u003cimg alt=\"WTGPS‑M RS485\/MODBUS version wiring diagram and pin table for VCC, A, B, and GND\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/WitMotion-WTGPS---BDGPSGLONASSQZSSNMEA0183-Module-With_413f6bfe-79b9-473b-a3b7-340706f9d15d.webp?v=1783394653\"\u003e\u003cp\u003eAn optional WTGPS‑M variant provides RS485 with MODBUS output for industrial-style communication runs.\u003c\/p\u003e\n\u003cimg alt=\"WTGPS‑M rugged enclosure details: aluminum shell, shielded cable, and waterproof\/dustproof design notes\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/WitMotion-WTGPS---BDGPSGLONASSQZSSNMEA0183-Module-With_a0052aba-148c-4e2e-a0e4-f64669c897c1.webp?v=1783394665\"\u003e\u003cp\u003eA sealed aluminum housing and shielded cable are designed for harsher environments and more stable signal transmission.\u003c\/p\u003e\n\u003cimg alt=\"Download icons for software, manual, datasheet, and protocol resources\" loading=\"lazy\" src=\"https:\/\/rcdrone.top\/cdn\/shop\/files\/WitMotion-WTGPS---BDGPSGLONASSQZSSNMEA0183-Module-With_f38f7fa2-7961-4609-bae9-bab59124d7e9.webp?v=1783394675\"\u003e\n\u003c\/div\u003e","brand":"WitMotion","offers":[{"title":"GPS with Antenna","offer_id":53307834564832,"sku":"A.000231-A.000357-1","price":46.0,"currency_code":"USD","in_stock":true},{"title":"GPS with Ceramic","offer_id":53307834597600,"sku":"A.000231-A.000357-2","price":40.4,"currency_code":"USD","in_stock":true},{"title":"WTGPS-M","offer_id":53307834630368,"sku":"A.000231-A.000357-3","price":65.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0643\/3210\/3904\/files\/wtgps-bdgpsglonassqzssnmea0183-module-with-flight-control-antenna-for-arduino-5603171.jpg?v=1783347975","url":"https:\/\/rcdrone.top\/it\/products\/witmotion-wtgps-module","provider":"RCDrone","version":"1.0","type":"link"}