{"product_id":"sparkfun-rtk-postcard","title":"SparkFun RTK Postcard","description":"\u003cp\u003eThe SparkFun Postcard is a compact dev board for high-precision PNT needs that combines the Quectel LG290P GNSS RTK with an Espressif ESP32-PICO-MINI-02.\u003c\/p\u003e\n\u003cdiv\u003e \n \u003ch2\u003eFeatures \u0026amp; Specs\u003c\/h2\u003e \n \u003cp\u003e\u003c\/p\u003e \n \u003cdiv\u003e \n  \u003cdiv\u003e \n   \u003cdiv\u003e \n    \u003cp\u003e\u003cstrong\u003eSparkFun RTK Postcard Features\u003c\/strong\u003e\u003c\/p\u003e \n    \u003cul\u003e \n     \u003cli\u003eQuectel LG290P quad-band, GNSS module \n      \u003cul\u003e \n       \u003cli\u003eConcurrent signal reception: 5 + QZSS \n        \u003cul\u003e \n         \u003cli\u003e \u003cpre\u003eL1, L2, L5, E6 frequency bands\u003c\/pre\u003e \u003c\/li\u003e \n        \u003c\/ul\u003e \u003c\/li\u003e \n       \u003cli\u003eGNSS Constellations: \n        \u003cul\u003e \n         \u003cli\u003eGPS (USA)\u003c\/li\u003e \n         \u003cli\u003eGLONASS (Russia)\u003c\/li\u003e \n         \u003cli\u003eGalileo (EU)\u003c\/li\u003e \n         \u003cli\u003eBDS (China)\u003c\/li\u003e \n         \u003cli\u003eQZSS (Japan)\u003c\/li\u003e \n         \u003cli\u003eNavIC (India)\u003c\/li\u003e \n        \u003c\/ul\u003e \u003c\/li\u003e \n       \u003cli\u003eSBAS Systems: \n        \u003cul\u003e \n         \u003cli\u003eWAAS (USA)\u003c\/li\u003e \n         \u003cli\u003eSDCM (Russia)\u003c\/li\u003e \n         \u003cli\u003eEGNOS (EU)\u003c\/li\u003e \n         \u003cli\u003eBDSBAS (China)\u003c\/li\u003e \n         \u003cli\u003eMSAS (Japan)\u003c\/li\u003e \n         \u003cli\u003eGAGAN (India)\u003c\/li\u003e \n        \u003c\/ul\u003e \u003c\/li\u003e \n       \u003cli\u003eBuilt-in NIC anti-jamming unit\u003c\/li\u003e \n      \u003c\/ul\u003e \u003c\/li\u003e \n     \u003cli\u003eESP32-PICO-MINI-N8R2 module \n      \u003cul\u003e \n       \u003cli\u003eFirmware: \u003ca href=\"https:\/\/github.com\/sparkfun\/SparkFun_RTK_Everywhere_Firmware\"\u003eRTK Everywhere\u003c\/a\u003e\n\u003c\/li\u003e \n       \u003cli\u003eProvides WiFi\/BT connectivity \n        \u003cul\u003e \n         \u003cli\u003eWi­Fi 802.11b\/g\/n\u003c\/li\u003e \n         \u003cli\u003eBluetooth\u003c\/li\u003e \n        \u003c\/ul\u003e \u003c\/li\u003e \n       \u003cli\u003eButtons \n        \u003cul\u003e \n         \u003cli\u003eEPS32 Reset\u003c\/li\u003e \n         \u003cli\u003eESP32 Boot\u003c\/li\u003e \n        \u003c\/ul\u003e \u003c\/li\u003e \n      \u003c\/ul\u003e \u003c\/li\u003e \n     \u003cli\u003eBreakout board: \n      \u003cul\u003e \n       \u003cli\u003eDimensions: 1.70\" x 1.70\" (43.2mm x 43.2mm)\u003c\/li\u003e \n       \u003cli\u003eFour mounting holes: \n        \u003cul\u003e \n         \u003cli\u003e4-40 screw compatible\u003c\/li\u003e \n        \u003c\/ul\u003e \u003c\/li\u003e \n       \u003cli\u003eInput Voltage Range: \u003cstrong\u003e3.0 to 5.5V\u003c\/strong\u003e (5V pin)\u003c\/li\u003e \n      \u003c\/ul\u003e \u003c\/li\u003e \n     \u003cli\u003eConnections: \n      \u003cul\u003e \n       \u003cli\u003e19 PTH pins\u003c\/li\u003e \n       \u003cli\u003e4-pin JST-SH Qwiic connector (x2)\u003c\/li\u003e \n       \u003cli\u003eUSB-C connector\u003c\/li\u003e \n       \u003cli\u003e4-pin locking JST-GH connector\u003c\/li\u003e \n       \u003cli\u003eSMA antenna connector\u003c\/li\u003e \n       \u003cli\u003eu.fl antenna connector\u003c\/li\u003e \n      \u003c\/ul\u003e \u003c\/li\u003e \n     \u003cli\u003eLEDs: \n      \u003cul\u003e \n       \u003cli\u003e \u003cpre\u003eSTAT - Green general status indicator\u003c\/pre\u003e \u003c\/li\u003e \n       \u003cli\u003e \u003cpre\u003ePWR - Red 3.3V power indicator\u003c\/pre\u003e \u003c\/li\u003e \n       \u003cli\u003e \u003cpre\u003ePPS - Yellow Pulse-Per-Second indicator\u003c\/pre\u003e \u003c\/li\u003e \n       \u003cli\u003e \u003cpre\u003eRTK - White RTK fix\/correction indicator\u003c\/pre\u003e \u003c\/li\u003e \n       \u003cli\u003e \u003cpre\u003eBT - Blue Bluetooth indicator\u003c\/pre\u003e \u003c\/li\u003e \n      \u003c\/ul\u003e \u003c\/li\u003e \n     \u003cli\u003eBackup battery\u003c\/li\u003e \n    \u003c\/ul\u003e \n    \u003cp\u003e\u003cstrong\u003eLG290P General Features\u003c\/strong\u003e\u003c\/p\u003e \n    \u003cul\u003e \n     \u003cli\u003eHigh-precision GNSS module\u003c\/li\u003e \n     \u003cli\u003eElectrical Characteristics: \n      \u003cul\u003e \n       \u003cli\u003eSupply Voltage: 3.15 to 3.45V\u003c\/li\u003e \n       \u003cli\u003eCurrent Consumption: \n        \u003cul\u003e \n         \u003cli\u003eNormal Operation: \n          \u003cul\u003e \n           \u003cli\u003e91mA (300.3mW) (Acquisition)\u003c\/li\u003e \n           \u003cli\u003e91mA (300.3mW) (Tracking)\u003c\/li\u003e \n          \u003c\/ul\u003e \u003c\/li\u003e \n         \u003cli\u003ePower Saving Mode: \n          \u003cul\u003e \n           \u003cli\u003e12μA (39.6mW) (Backup Mode)\u003c\/li\u003e \n          \u003c\/ul\u003e \u003c\/li\u003e \n        \u003c\/ul\u003e \u003c\/li\u003e \n      \u003c\/ul\u003e \u003c\/li\u003e \n     \u003cli\u003eGNSS Frequency bands: \n      \u003cul\u003e \n       \u003cli\u003eGPS: L1 C\/A, L1C*, L5, L2C\u003c\/li\u003e \n       \u003cli\u003eGLONASS: L1, L2\u003c\/li\u003e \n       \u003cli\u003eGalileo: E1, E5a, E5b, E6\u003c\/li\u003e \n       \u003cli\u003eBDS: B1I, B1C, B2a, B2b, B2I, B3I\u003c\/li\u003e \n       \u003cli\u003eQZSS: L1 C\/A, L1C*, L5, L2C\u003c\/li\u003e \n       \u003cli\u003eNavIC: L5\u003c\/li\u003e \n       \u003cli\u003eSBAS: L1 C\/A\u003c\/li\u003e \n       \u003cli\u003eL-band PPP*: \n        \u003cul\u003e \n         \u003cli\u003ePPP: B2b\u003c\/li\u003e \n         \u003cli\u003eQZSS: L6\u003c\/li\u003e \n         \u003cli\u003eGalileo HAS: E6\u003c\/li\u003e \n        \u003c\/ul\u003e \u003c\/li\u003e \n      \u003c\/ul\u003e \u003c\/li\u003e \n     \u003cli\u003eTracking Channels: 1040\u003c\/li\u003e \n     \u003cli\u003eHorizontal Position Accuracy: \n      \u003cul\u003e \n       \u003cli\u003eAutonomous: 0.7m\u003c\/li\u003e \n       \u003cli\u003eRTK: 0.8cm + 1ppm\u003c\/li\u003e \n      \u003c\/ul\u003e \u003c\/li\u003e \n     \u003cli\u003eVertical Accuracy: \n      \u003cul\u003e \n       \u003cli\u003eAutonomous: 2.5m\u003c\/li\u003e \n       \u003cli\u003eRTK: 1.5cm + 1ppm\u003c\/li\u003e \n      \u003c\/ul\u003e \u003c\/li\u003e \n     \u003cli\u003eVelocity Accuracy Without Aid: 0.03m\/s\u003c\/li\u003e \n     \u003cli\u003eAccuracy of 1PPS Signal: 5ns (RMS)\u003c\/li\u003e \n     \u003cli\u003eRTK Convergence Time: 5s\u003c\/li\u003e \n     \u003cli\u003eTime to First Fix (without AGNSS): \n      \u003cul\u003e \n       \u003cli\u003eCold Start: 28s\u003c\/li\u003e \n       \u003cli\u003eWarm Start: 28s\u003c\/li\u003e \n       \u003cli\u003eHot Start: 1.7s\u003c\/li\u003e \n      \u003c\/ul\u003e \u003c\/li\u003e \n     \u003cli\u003eSensitivity: \n      \u003cul\u003e \n       \u003cli\u003eAcquisition: -146dBm\u003c\/li\u003e \n       \u003cli\u003eTracking: -160dBm\u003c\/li\u003e \n       \u003cli\u003eReacquisition: -155dBm\u003c\/li\u003e \n      \u003c\/ul\u003e \u003c\/li\u003e \n     \u003cli\u003eDynamic Performance: \n      \u003cul\u003e \n       \u003cli\u003eMaximum Altitude: 10000m\u003c\/li\u003e \n       \u003cli\u003eMaximum Velocity: 490m\/s\u003c\/li\u003e \n       \u003cli\u003eMaximum Acceleration: 4g\u003c\/li\u003e \n      \u003c\/ul\u003e \u003c\/li\u003e \n     \u003cli\u003eUpdate Rate: \n      \u003cul\u003e \n       \u003cli\u003eDefault: 10Hz\u003c\/li\u003e \n       \u003cli\u003eMax: 20Hz\u003c\/li\u003e \n      \u003c\/ul\u003e \u003c\/li\u003e \n     \u003cli\u003eAntenna Interface: \n      \u003cul\u003e \n       \u003cli\u003eExternal active antenna\u003c\/li\u003e \n       \u003cli\u003ePower Supply: External or Internal\u003c\/li\u003e \n      \u003c\/ul\u003e \u003c\/li\u003e \n     \u003cli\u003eInterfaces \n      \u003cul\u003e \n       \u003cli\u003eUART (x3) \n        \u003cul\u003e \n         \u003cli\u003eBaud Rate: 9600–3000000bps\u003c\/li\u003e \n         \u003cli\u003eDefault: 460800bps\u003c\/li\u003e \n         \u003cli\u003eProtocol: NMEA 0183\/RTCM 3.x\u003c\/li\u003e \n        \u003c\/ul\u003e \u003c\/li\u003e \n       \u003cli\u003eSPI* (x1)\u003c\/li\u003e \n       \u003cli\u003eI2C* (x1)\u003c\/li\u003e \n      \u003c\/ul\u003e \u003c\/li\u003e \n     \u003cli\u003eOperating temperature: -40 to 85°C\u003c\/li\u003e \n     \u003cli\u003eFootprint: 12.2mm × 16mm × 2.6mm\u003c\/li\u003e \n     \u003cli\u003eWeight: ~0.9g\u003c\/li\u003e \n    \u003c\/ul\u003e \n    \u003cp\u003e\u003cstrong\u003eESP32 General Features\u003c\/strong\u003e\u003c\/p\u003e \n    \u003cul\u003e \n     \u003cli\u003eElectrical Characteristics: \n      \u003cul\u003e \n       \u003cli\u003eOperating Voltage: 3.0 to 3.6 V\u003c\/li\u003e \n       \u003cli\u003eCurrent Consumption: \n        \u003cul\u003e \n         \u003cli\u003eRF Operation: 368mA (peak)\u003c\/li\u003e \n         \u003cli\u003eNormal Operation: 20-31mA\u003c\/li\u003e \n         \u003cli\u003eLight-Sleep: 0.8mA\u003c\/li\u003e \n         \u003cli\u003eDeep-Sleep: 5µA\u003c\/li\u003e \n        \u003c\/ul\u003e \u003c\/li\u003e \n      \u003c\/ul\u003e \u003c\/li\u003e \n     \u003cli\u003eXtensa® Dual-Core 32-bit LX6 Microprocessor (up to 240MHz) \n      \u003cul\u003e \n       \u003cli\u003e448KB of ROM and 520KB SRAM\u003c\/li\u003e \n       \u003cli\u003e8MB SPI Flash\u003c\/li\u003e \n       \u003cli\u003e2MB PSRAM\u003c\/li\u003e \n       \u003cli\u003e16KB SRAM in RTC\u003c\/li\u003e \n      \u003c\/ul\u003e \u003c\/li\u003e \n     \u003cli\u003ePCB antenna\u003c\/li\u003e \n     \u003cli\u003eWi­F 802.11b\/g\/n \n      \u003cul\u003e \n       \u003cli\u003eBit Rate: up to 150Mbps (802.11n)\u003c\/li\u003e \n       \u003cli\u003eFrequency Range: 2412 - 2484MHz\u003c\/li\u003e \n      \u003c\/ul\u003e \u003c\/li\u003e \n     \u003cli\u003eBluetooth \n      \u003cul\u003e \n       \u003cli\u003eBluetooth v4.2 Specification: \n        \u003cul\u003e \n         \u003cli\u003eBR\/EDR\u003c\/li\u003e \n         \u003cli\u003eBluetooth LE\u003c\/li\u003e \n        \u003c\/ul\u003e \u003c\/li\u003e \n       \u003cli\u003eTransmitter Class: 1, 2, and 3\u003c\/li\u003e \n      \u003c\/ul\u003e \u003c\/li\u003e \n     \u003cli\u003eSupported Peripherals: \n      \u003cul\u003e \n       \u003cli\u003eSD card, UART, SPI, SDIO, I2C, LED PWM, Motor PWM, I2S, IR, pulse counter, GPIO, capacitive touch sensor, ADC, DAC, TWAI® (compatible with ISO 11898-1, i.e. CAN Specification 2.0), Ethernet MAC\u003c\/li\u003e \n      \u003c\/ul\u003e \u003c\/li\u003e \n     \u003cli\u003eOperating Temperature: -40 to 85°C \u003cpre\u003e*: Feature is still under development\u003c\/pre\u003e \u003c\/li\u003e \n    \u003c\/ul\u003e \n   \u003c\/div\u003e \n  \u003c\/div\u003e \n \u003c\/div\u003e \n \u003cp\u003e\u003c\/p\u003e \n\u003c\/div\u003e\n\u003cdiv\u003e \n \u003ch2\u003eFeatures \u0026amp; Specs\u003c\/h2\u003e \n \u003cp\u003e\u003c\/p\u003e \n \u003cdiv\u003e \n  \u003cdiv\u003e \n   \u003cdiv\u003e \n    \u003cp\u003e\u003cstrong\u003eSparkFun RTK Postcard Features\u003c\/strong\u003e\u003c\/p\u003e \n    \u003cul\u003e \n     \u003cli\u003eQuectel LG290P quad-band, GNSS module \n      \u003cul\u003e \n       \u003cli\u003eConcurrent signal reception: 5 + QZSS \n        \u003cul\u003e \n         \u003cli\u003e \u003cpre\u003eL1, L2, L5, E6 frequency bands\u003c\/pre\u003e \u003c\/li\u003e \n        \u003c\/ul\u003e \u003c\/li\u003e \n       \u003cli\u003eGNSS Constellations: \n        \u003cul\u003e \n         \u003cli\u003eGPS (USA)\u003c\/li\u003e \n         \u003cli\u003eGLONASS (Russia)\u003c\/li\u003e \n         \u003cli\u003eGalileo (EU)\u003c\/li\u003e \n         \u003cli\u003eBDS (China)\u003c\/li\u003e \n         \u003cli\u003eQZSS (Japan)\u003c\/li\u003e \n         \u003cli\u003eNavIC (India)\u003c\/li\u003e \n        \u003c\/ul\u003e \u003c\/li\u003e \n       \u003cli\u003eSBAS Systems: \n        \u003cul\u003e \n         \u003cli\u003eWAAS (USA)\u003c\/li\u003e \n         \u003cli\u003eSDCM (Russia)\u003c\/li\u003e \n         \u003cli\u003eEGNOS (EU)\u003c\/li\u003e \n         \u003cli\u003eBDSBAS (China)\u003c\/li\u003e \n         \u003cli\u003eMSAS (Japan)\u003c\/li\u003e \n         \u003cli\u003eGAGAN (India)\u003c\/li\u003e \n        \u003c\/ul\u003e \u003c\/li\u003e \n       \u003cli\u003eBuilt-in NIC anti-jamming unit\u003c\/li\u003e \n      \u003c\/ul\u003e \u003c\/li\u003e \n     \u003cli\u003eESP32-PICO-MINI-N8R2 module \n      \u003cul\u003e \n       \u003cli\u003eFirmware: \u003ca href=\"https:\/\/github.com\/sparkfun\/SparkFun_RTK_Everywhere_Firmware\"\u003eRTK Everywhere\u003c\/a\u003e\n\u003c\/li\u003e \n       \u003cli\u003eProvides WiFi\/BT connectivity \n        \u003cul\u003e \n         \u003cli\u003eWi­Fi 802.11b\/g\/n\u003c\/li\u003e \n         \u003cli\u003eBluetooth\u003c\/li\u003e \n        \u003c\/ul\u003e \u003c\/li\u003e \n       \u003cli\u003eButtons \n        \u003cul\u003e \n         \u003cli\u003eEPS32 Reset\u003c\/li\u003e \n         \u003cli\u003eESP32 Boot\u003c\/li\u003e \n        \u003c\/ul\u003e \u003c\/li\u003e \n      \u003c\/ul\u003e \u003c\/li\u003e \n     \u003cli\u003eBreakout board: \n      \u003cul\u003e \n       \u003cli\u003eDimensions: 1.70\" x 1.70\" (43.2mm x 43.2mm)\u003c\/li\u003e \n       \u003cli\u003eFour mounting holes: \n        \u003cul\u003e \n         \u003cli\u003e4-40 screw compatible\u003c\/li\u003e \n        \u003c\/ul\u003e \u003c\/li\u003e \n       \u003cli\u003eInput Voltage Range: \u003cstrong\u003e3.0 to 5.5V\u003c\/strong\u003e (5V pin)\u003c\/li\u003e \n      \u003c\/ul\u003e \u003c\/li\u003e \n     \u003cli\u003eConnections: \n      \u003cul\u003e \n       \u003cli\u003e19 PTH pins\u003c\/li\u003e \n       \u003cli\u003e4-pin JST-SH Qwiic connector (x2)\u003c\/li\u003e \n       \u003cli\u003eUSB-C connector\u003c\/li\u003e \n       \u003cli\u003e4-pin locking JST-GH connector\u003c\/li\u003e \n       \u003cli\u003eSMA antenna connector\u003c\/li\u003e \n       \u003cli\u003eu.fl antenna connector\u003c\/li\u003e \n      \u003c\/ul\u003e \u003c\/li\u003e \n     \u003cli\u003eLEDs: \n      \u003cul\u003e \n       \u003cli\u003e \u003cpre\u003eSTAT - Green general status indicator\u003c\/pre\u003e \u003c\/li\u003e \n       \u003cli\u003e \u003cpre\u003ePWR - Red 3.3V power indicator\u003c\/pre\u003e \u003c\/li\u003e \n       \u003cli\u003e \u003cpre\u003ePPS - Yellow Pulse-Per-Second indicator\u003c\/pre\u003e \u003c\/li\u003e \n       \u003cli\u003e \u003cpre\u003eRTK - White RTK fix\/correction indicator\u003c\/pre\u003e \u003c\/li\u003e \n       \u003cli\u003e \u003cpre\u003eBT - Blue Bluetooth indicator\u003c\/pre\u003e \u003c\/li\u003e \n      \u003c\/ul\u003e \u003c\/li\u003e \n     \u003cli\u003eBackup battery\u003c\/li\u003e \n    \u003c\/ul\u003e \n    \u003cp\u003e\u003cstrong\u003eLG290P General Features\u003c\/strong\u003e\u003c\/p\u003e \n    \u003cul\u003e \n     \u003cli\u003eHigh-precision GNSS module\u003c\/li\u003e \n     \u003cli\u003eElectrical Characteristics: \n      \u003cul\u003e \n       \u003cli\u003eSupply Voltage: 3.15 to 3.45V\u003c\/li\u003e \n       \u003cli\u003eCurrent Consumption: \n        \u003cul\u003e \n         \u003cli\u003eNormal Operation: \n          \u003cul\u003e \n           \u003cli\u003e91mA (300.3mW) (Acquisition)\u003c\/li\u003e \n           \u003cli\u003e91mA (300.3mW) (Tracking)\u003c\/li\u003e \n          \u003c\/ul\u003e \u003c\/li\u003e \n         \u003cli\u003ePower Saving Mode: \n          \u003cul\u003e \n           \u003cli\u003e12μA (39.6mW) (Backup Mode)\u003c\/li\u003e \n          \u003c\/ul\u003e \u003c\/li\u003e \n        \u003c\/ul\u003e \u003c\/li\u003e \n      \u003c\/ul\u003e \u003c\/li\u003e \n     \u003cli\u003eGNSS Frequency bands: \n      \u003cul\u003e \n       \u003cli\u003eGPS: L1 C\/A, L1C*, L5, L2C\u003c\/li\u003e \n       \u003cli\u003eGLONASS: L1, L2\u003c\/li\u003e \n       \u003cli\u003eGalileo: E1, E5a, E5b, E6\u003c\/li\u003e \n       \u003cli\u003eBDS: B1I, B1C, B2a, B2b, B2I, B3I\u003c\/li\u003e \n       \u003cli\u003eQZSS: L1 C\/A, L1C*, L5, L2C\u003c\/li\u003e \n       \u003cli\u003eNavIC: L5\u003c\/li\u003e \n       \u003cli\u003eSBAS: L1 C\/A\u003c\/li\u003e \n       \u003cli\u003eL-band PPP*: \n        \u003cul\u003e \n         \u003cli\u003ePPP: B2b\u003c\/li\u003e \n         \u003cli\u003eQZSS: L6\u003c\/li\u003e \n         \u003cli\u003eGalileo HAS: E6\u003c\/li\u003e \n        \u003c\/ul\u003e \u003c\/li\u003e \n      \u003c\/ul\u003e \u003c\/li\u003e \n     \u003cli\u003eTracking Channels: 1040\u003c\/li\u003e \n     \u003cli\u003eHorizontal Position Accuracy: \n      \u003cul\u003e \n       \u003cli\u003eAutonomous: 0.7m\u003c\/li\u003e \n       \u003cli\u003eRTK: 0.8cm + 1ppm\u003c\/li\u003e \n      \u003c\/ul\u003e \u003c\/li\u003e \n     \u003cli\u003eVertical Accuracy: \n      \u003cul\u003e \n       \u003cli\u003eAutonomous: 2.5m\u003c\/li\u003e \n       \u003cli\u003eRTK: 1.5cm + 1ppm\u003c\/li\u003e \n      \u003c\/ul\u003e \u003c\/li\u003e \n     \u003cli\u003eVelocity Accuracy Without Aid: 0.03m\/s\u003c\/li\u003e \n     \u003cli\u003eAccuracy of 1PPS Signal: 5ns (RMS)\u003c\/li\u003e \n     \u003cli\u003eRTK Convergence Time: 5s\u003c\/li\u003e \n     \u003cli\u003eTime to First Fix (without AGNSS): \n      \u003cul\u003e \n       \u003cli\u003eCold Start: 28s\u003c\/li\u003e \n       \u003cli\u003eWarm Start: 28s\u003c\/li\u003e \n       \u003cli\u003eHot Start: 1.7s\u003c\/li\u003e \n      \u003c\/ul\u003e \u003c\/li\u003e \n     \u003cli\u003eSensitivity: \n      \u003cul\u003e \n       \u003cli\u003eAcquisition: -146dBm\u003c\/li\u003e \n       \u003cli\u003eTracking: -160dBm\u003c\/li\u003e \n       \u003cli\u003eReacquisition: -155dBm\u003c\/li\u003e \n      \u003c\/ul\u003e \u003c\/li\u003e \n     \u003cli\u003eDynamic Performance: \n      \u003cul\u003e \n       \u003cli\u003eMaximum Altitude: 10000m\u003c\/li\u003e \n       \u003cli\u003eMaximum Velocity: 490m\/s\u003c\/li\u003e \n       \u003cli\u003eMaximum Acceleration: 4g\u003c\/li\u003e \n      \u003c\/ul\u003e \u003c\/li\u003e \n     \u003cli\u003eUpdate Rate: \n      \u003cul\u003e \n       \u003cli\u003eDefault: 10Hz\u003c\/li\u003e \n       \u003cli\u003eMax: 20Hz\u003c\/li\u003e \n      \u003c\/ul\u003e \u003c\/li\u003e \n     \u003cli\u003eAntenna Interface: \n      \u003cul\u003e \n       \u003cli\u003eExternal active antenna\u003c\/li\u003e \n       \u003cli\u003ePower Supply: External or Internal\u003c\/li\u003e \n      \u003c\/ul\u003e \u003c\/li\u003e \n     \u003cli\u003eInterfaces \n      \u003cul\u003e \n       \u003cli\u003eUART (x3) \n        \u003cul\u003e \n         \u003cli\u003eBaud Rate: 9600–3000000bps\u003c\/li\u003e \n         \u003cli\u003eDefault: 460800bps\u003c\/li\u003e \n         \u003cli\u003eProtocol: NMEA 0183\/RTCM 3.x\u003c\/li\u003e \n        \u003c\/ul\u003e \u003c\/li\u003e \n       \u003cli\u003eSPI* (x1)\u003c\/li\u003e \n       \u003cli\u003eI2C* (x1)\u003c\/li\u003e \n      \u003c\/ul\u003e \u003c\/li\u003e \n     \u003cli\u003eOperating temperature: -40 to 85°C\u003c\/li\u003e \n     \u003cli\u003eFootprint: 12.2mm × 16mm × 2.6mm\u003c\/li\u003e \n     \u003cli\u003eWeight: ~0.9g\u003c\/li\u003e \n    \u003c\/ul\u003e \n    \u003cp\u003e\u003cstrong\u003eESP32 General Features\u003c\/strong\u003e\u003c\/p\u003e \n    \u003cul\u003e \n     \u003cli\u003eElectrical Characteristics: \n      \u003cul\u003e \n       \u003cli\u003eOperating Voltage: 3.0 to 3.6 V\u003c\/li\u003e \n       \u003cli\u003eCurrent Consumption: \n        \u003cul\u003e \n         \u003cli\u003eRF Operation: 368mA (peak)\u003c\/li\u003e \n         \u003cli\u003eNormal Operation: 20-31mA\u003c\/li\u003e \n         \u003cli\u003eLight-Sleep: 0.8mA\u003c\/li\u003e \n         \u003cli\u003eDeep-Sleep: 5µA\u003c\/li\u003e \n        \u003c\/ul\u003e \u003c\/li\u003e \n      \u003c\/ul\u003e \u003c\/li\u003e \n     \u003cli\u003eXtensa® Dual-Core 32-bit LX6 Microprocessor (up to 240MHz) \n      \u003cul\u003e \n       \u003cli\u003e448KB of ROM and 520KB SRAM\u003c\/li\u003e \n       \u003cli\u003e8MB SPI Flash\u003c\/li\u003e \n       \u003cli\u003e2MB PSRAM\u003c\/li\u003e \n       \u003cli\u003e16KB SRAM in RTC\u003c\/li\u003e \n      \u003c\/ul\u003e \u003c\/li\u003e \n     \u003cli\u003ePCB antenna\u003c\/li\u003e \n     \u003cli\u003eWi­F 802.11b\/g\/n \n      \u003cul\u003e \n       \u003cli\u003eBit Rate: up to 150Mbps (802.11n)\u003c\/li\u003e \n       \u003cli\u003eFrequency Range: 2412 - 2484MHz\u003c\/li\u003e \n      \u003c\/ul\u003e \u003c\/li\u003e \n     \u003cli\u003eBluetooth \n      \u003cul\u003e \n       \u003cli\u003eBluetooth v4.2 Specification: \n        \u003cul\u003e \n         \u003cli\u003eBR\/EDR\u003c\/li\u003e \n         \u003cli\u003eBluetooth LE\u003c\/li\u003e \n        \u003c\/ul\u003e \u003c\/li\u003e \n       \u003cli\u003eTransmitter Class: 1, 2, and 3\u003c\/li\u003e \n      \u003c\/ul\u003e \u003c\/li\u003e \n     \u003cli\u003eSupported Peripherals: \n      \u003cul\u003e \n       \u003cli\u003eSD card, UART, SPI, SDIO, I2C, LED PWM, Motor PWM, I2S, IR, pulse counter, GPIO, capacitive touch sensor, ADC, DAC, TWAI® (compatible with ISO 11898-1, i.e. CAN Specification 2.0), Ethernet MAC\u003c\/li\u003e \n      \u003c\/ul\u003e \u003c\/li\u003e \n     \u003cli\u003eOperating Temperature: -40 to 85°C \u003cpre\u003e*: Feature is still under development\u003c\/pre\u003e \u003c\/li\u003e \n    \u003c\/ul\u003e \n   \u003c\/div\u003e \n  \u003c\/div\u003e \n \u003c\/div\u003e \n \u003cp\u003e\u003c\/p\u003e \n\u003c\/div\u003e\n\u003ch2\u003eDocumentation\u003c\/h2\u003e \n\u003cp\u003e\u003c\/p\u003e \n\u003cul\u003e \n \u003cli\u003eDesign Files \n  \u003cul\u003e \n   \u003cli\u003e\u003ca href=\"https:\/\/docs.sparkfun.com\/SparkFun_RTK_Postcard\/assets\/board_files\/schematic.pdf\" target=\"_blank\" rel=\"noopener\"\u003eSchematic\u003c\/a\u003e\u003c\/li\u003e \n   \u003cli\u003e\u003ca href=\"https:\/\/docs.sparkfun.com\/SparkFun_RTK_Postcard\/assets\/board_files\/kicad_files.zip\" target=\"_blank\" rel=\"noopener\"\u003eKiCad Files\u003c\/a\u003e\u003c\/li\u003e \n   \u003cli\u003e\u003ca href=\"https:\/\/docs.sparkfun.com\/SparkFun_RTK_Postcard\/assets\/board_files\/dimensions.pdf\" target=\"_blank\" rel=\"noopener\"\u003eBoard Dimensions\u003c\/a\u003e\u003c\/li\u003e \n   \u003cli\u003e\u003ca href=\"https:\/\/docs.sparkfun.com\/SparkFun_RTK_Postcard\/assets\/3d_model\/cad_model.step\" target=\"_blank\" rel=\"noopener\"\u003eSTEP File\u003c\/a\u003e\u003c\/li\u003e \n   \u003cli\u003e\u003ca href=\"https:\/\/cdn.sparkfun.com\/assets\/d\/0\/2\/b\/c\/SparkFun_Postcard_Housing_Bare.step\" target=\"_blank\" rel=\"noopener\"\u003eExample Housing\u003c\/a\u003e\u003c\/li\u003e \n  \u003c\/ul\u003e \u003c\/li\u003e \n \u003cli\u003e\n\u003ca href=\"https:\/\/docs.sparkfun.com\/SparkFun_RTK_Postcard\" target=\"_blank\" rel=\"noopener\"\u003eHookup Guide\u003c\/a\u003e \n  \u003cul\u003e \n   \u003cli\u003e\n\u003ca href=\"https:\/\/github.com\/sparkfun\/SparkFun_RTK_Everywhere_Firmware\" target=\"_blank\" rel=\"noopener\"\u003eUser Manual - RTK Everywhere Firmware\u003c\/a\u003e \n    \u003cul\u003e \n     \u003cli\u003e\u003ca href=\"https:\/\/github.com\/sparkfun\/SparkFun_RTK_Everywhere_Firmware_Binaries\" target=\"_blank\" rel=\"noopener\"\u003eFirmware Binary Files\u003c\/a\u003e\u003c\/li\u003e \n     \u003cli\u003e\u003ca href=\"https:\/\/github.com\/sparkfun\/SparkFun_RTK_Firmware_Uploader\/releases\" target=\"_blank\" rel=\"noopener\"\u003eRTK Firmware Uploader\u003c\/a\u003e\u003c\/li\u003e \n    \u003c\/ul\u003e \u003c\/li\u003e \n   \u003cli\u003eCH342 USB Driver \u003cem\u003e(\u003ca href=\"https:\/\/www.wch-ic.com\/search?q=CH342\u0026amp;t=downloads\" target=\"_blank\" rel=\"noopener\"\u003emanufacturer website\u003c\/a\u003e)\u003c\/em\u003e \n    \u003cul\u003e \n     \u003cli\u003e\u003ca href=\"https:\/\/www.wch-ic.com\/downloads\/CH343SER_EXE.html\" target=\"_blank\" rel=\"noopener\"\u003eWindows\u003c\/a\u003e\u003c\/li\u003e \n     \u003cli\u003e\u003ca href=\"https:\/\/www.wch-ic.com\/downloads\/CH34XSER_MAC_ZIP.html\" target=\"_blank\" rel=\"noopener\"\u003eMacOS\u003c\/a\u003e\u003c\/li\u003e \n    \u003c\/ul\u003e \u003c\/li\u003e \n   \u003cli\u003e\u003ca href=\"https:\/\/www.quectel.com\/download\/qgnss_v2-0_en\/\" target=\"_blank\" rel=\"noopener\"\u003eQGNSS Software \u003cem\u003e(v2.0)\u003c\/em\u003e\u003c\/a\u003e\u003c\/li\u003e \n  \u003c\/ul\u003e \u003c\/li\u003e \n \u003cli\u003eComponent Documentation \n  \u003cul\u003e \n   \u003cli\u003e\n\u003ca href=\"https:\/\/espressif.com\/sites\/default\/files\/documentation\/esp32-pico-mini-02_datasheet_en.pdf\" target=\"_blank\" rel=\"noopener\"\u003eESP32-Pico-Mini-02 Module Datasheet\u003c\/a\u003e \n    \u003cul\u003e \n     \u003cli\u003e\u003ca href=\"https:\/\/www.espressif.com\/sites\/default\/files\/documentation\/esp32-pico_series_datasheet_en.pdf\" target=\"_blank\" rel=\"noopener\"\u003eESP32-Pico SoC Series Datasheet\u003c\/a\u003e\u003c\/li\u003e \n    \u003c\/ul\u003e \u003c\/li\u003e \n   \u003cli\u003e\u003ca href=\"https:\/\/cdn.sparkfun.com\/assets\/a\/1\/3\/6\/6\/Quectel_LG290P_03__GNSS_Module_Specification_V1.3.pdf\" target=\"_blank\" rel=\"noopener\"\u003eLG290P Product Brochure\u003c\/a\u003e\u003c\/li\u003e \n   \u003cli\u003e\u003ca href=\"https:\/\/docs.sparkfun.com\/SparkFun_RTK_Postcard\/assets\/component_documentation\/Quectel_LG290P%2803%29_RTK_Application_Note_V1.0.pdf\" target=\"_blank\" rel=\"noopener\"\u003eRTK Application Note\u003c\/a\u003e\u003c\/li\u003e \n   \u003cli\u003e\u003ca href=\"https:\/\/docs.sparkfun.com\/SparkFun_RTK_Postcard\/assets\/component_documentation\/Quectel_LG290P_GNSS_Protocol_Specification_v1-0.pdf\" target=\"_blank\" rel=\"noopener\"\u003eGNSS Protocol Specification\u003c\/a\u003e\u003c\/li\u003e \n   \u003cli\u003e\u003ca href=\"https:\/\/docs.sparkfun.com\/SparkFun_RTK_Postcard\/assets\/component_documentation\/Quectel_LG290P%2803%29_Hardware_Design_V1.0.pdf\" target=\"_blank\" rel=\"noopener\"\u003eHardware Design\u003c\/a\u003e\u003c\/li\u003e \n   \u003cli\u003e\u003ca href=\"https:\/\/docs.sparkfun.com\/SparkFun_RTK_Postcard\/assets\/component_documentation\/Quectel_LG290P%2803%29_Firmware_Upgrade_Guide_V1.0.pdf\" target=\"_blank\" rel=\"noopener\"\u003eFirmware Upgrade Guide\u003c\/a\u003e\u003c\/li\u003e \n   \u003cli\u003e\u003ca href=\"https:\/\/docs.sparkfun.com\/SparkFun_RTK_Postcard\/assets\/component_documentation\/CH342%20Datasheet.pdf\" target=\"_blank\" rel=\"noopener\"\u003eCH342 Datasheet\u003c\/a\u003e\u003c\/li\u003e \n   \u003cli\u003e\u003ca href=\"https:\/\/docs.sparkfun.com\/SparkFun_RTK_Postcard\/assets\/component_documentation\/DS9080.pdf\" target=\"_blank\" rel=\"noopener\"\u003eRT9080 Datasheet\u003c\/a\u003e\u003c\/li\u003e \n   \u003cli\u003e\u003ca href=\"https:\/\/docs.sparkfun.com\/SparkFun_RTK_Postcard\/assets\/component_documentation\/JST-GH_datasheet.pdf\" target=\"_blank\" rel=\"noopener\"\u003eJST-GH Dimensions\u003c\/a\u003e\u003c\/li\u003e \n  \u003c\/ul\u003e \u003c\/li\u003e \n \u003cli\u003e\u003ca href=\"https:\/\/www.sparkfun.com\/qwiic\" target=\"_blank\" rel=\"noopener\"\u003eQwiic Info Page\u003c\/a\u003e\u003c\/li\u003e \n \u003cli\u003eGitHub Repositories: \n  \u003cul\u003e \n   \u003cli\u003e\u003ca href=\"https:\/\/github.com\/sparkfun\/SparkFun_RTK_Postcard\" target=\"_blank\" rel=\"noopener\"\u003eHardware Design\u003c\/a\u003e\u003c\/li\u003e \n   \u003cli\u003e\u003ca href=\"https:\/\/github.com\/sparkfun\/SparkFun_RTK_Everywhere_Firmware\" target=\"_blank\" rel=\"noopener\"\u003eBuilt-in Firmware\u003c\/a\u003e\u003c\/li\u003e \n   \u003cli\u003e\u003ca href=\"https:\/\/github.com\/sparkfun\/SparkFun_RTK_Everywhere_Firmware_Binaries\" target=\"_blank\" rel=\"noopener\"\u003eFirmware Binaries\u003c\/a\u003e\u003c\/li\u003e \n   \u003cli\u003e\u003ca href=\"https:\/\/github.com\/sparkfun\/SparkFun_RTK_Firmware_Uploader\" target=\"_blank\" rel=\"noopener\"\u003eFirmware Uploader Tool\u003c\/a\u003e\u003c\/li\u003e \n  \u003c\/ul\u003e \u003c\/li\u003e \n\u003c\/ul\u003e \n\u003cp\u003e\u003c\/p\u003e \n\u003cdiv\u003e \n \u003cdiv\u003e \n  \u003cdiv\u003e \n   \u003cdiv\u003e \n    \u003cdiv\u003e \n     \u003cdiv\u003e \n      \u003cdiv\u003e \n       \u003cp\u003e\u003c\/p\u003e \n       \u003cdiv\u003e \n        \u003cspan\u003e \u003cb\u003eWARNING:\u003c\/b\u003e This product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. See link below for more information. \u003ca href=\"https:\/\/www.P65Warnings.ca.gov\"\u003ewww.P65Warnings.ca.gov\u003c\/a\u003e \u003c\/span\u003e \n       \u003c\/div\u003e \n      \u003c\/div\u003e \n     \u003c\/div\u003e \n     \u003cdiv\u003e\u003c\/div\u003e \n    \u003c\/div\u003e \n   \u003c\/div\u003e \n  \u003c\/div\u003e \n \u003c\/div\u003e \n\u003c\/div\u003e","brand":"sparkfun-10","offers":[{"title":"Default Title","offer_id":42643825459285,"sku":"26916:GPS-26916:spark","price":28375.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1034\/1611\/files\/26916-rtk-postcard-feature_1.jpg?v=1782358479","url":"https:\/\/www.tanotis.com\/products\/sparkfun-rtk-postcard","provider":"Tanotis","version":"1.0","type":"link"}