Web Store: www.parallax.com Office: (916) 624-8333 Tutorials: learn.parallax.com Educator Hotline: (916) 701-8625 Sales: sales parallax.com Sales: (888) 512-1024 Tech Support: support parallax.com Tech Support: (888) 997-8267 SIM33EAU GPS Module ( 28504) Parallaxs SIM33EAU GPS Module embeds the capable SIM33EAU GPS device in a project-friendly board. Ultra compact, the SIM33EAU device has a built-in low-noise amplifier and patch antenna so there is no need for an extra antenna on the board. The SIM33EAU GPS device gives your project the ability to read its position on the earthgiven a clear view of the skyusing global navigation satellite systems such as GPS, GLONASS, Galileo or QZSS. Its default settings provide all the capabilities you would expect from a GPS receiver: location fix, speed, heading, altitude measurements, and atomic date and time. Advanced users can re-configure these settings for specific needs. Parallaxs module makes the SIM33EAU device easily accessible to students, hobbyists, and developers. An onboard voltage regulator and buffer circuitry provide signal conditioning for use with 3.3 V or 5 V microcontrollers. Power and satellite fix LEDs let you know when your GPS module is ready and receiving data. A supercapacitor preserves almanac data for up to 4 hours if power is disconnected. The breadboard-friendly 7-pin header and mounting holes make for quick, solder-free integration into a project. Features Ready for use with 3.3 V or 5 V microcontrollers Power and satellite fix LEDs for quick visual status Supercapacitor preserves almanac data for Supports PMTK and NMEA 0183 standard protocols Receiver supports GPS, GLONASS, GALILEO, QZSS, SBAS ranging (WAAS/EGNOS/MSAS/GAGAN), AGPS, and EASY/EPO orbit prediction 33 tracking & 99 acquisition channels with jamming elimination Indoor and outdoor multi-path detection and compensation Configurable time pulse signal Copyright Parallax Inc. SIM33EAU GPS Module ( 28504) v1.0 3/30/2019 Page 1 of 10 Application Ideas Robot navigation Fleet tracking Heading and speed measurements Weather balloon tracking Key Specifications Power: 3.3 V 5 V, 60 mA max (typically 45 mA) Standby power: Typically 1.5 mA at 3.3 VIN Supercapacitor data preservation time for hot start: 4 hours Channels: 33 tracking, 99 acquisition Typical TTFF (Time to first fix): Cold 31 s, Warm 26 s, Hot < 1 s, EPO Assist 13 s Protocols: NMEA and PMTK Communication: TTL Asynchronous Serial UART 4800115200 bps, 9600 default Digital I/O: Enable, 3D-Fix and Timemark (1 PPS - Pulse Per Second) Navigation update rate: up to 10 Hz Horizontal position accuracy: 2.5 meter CEP (Circular Error Probable) Speed accuracy: 0.1 meter/second Operating temperature range: -40 to +185 F (-40 to +85 C) Maximum altitude: 80 km (~50 mi) upper mesosphere Dimensions: 1.0 x 1.7 x 0.36 in (25.4 x 43.2 x 9.1 mm) See the SIM33EAU GPS manufacturers documentation for complete device specifications. Resources and Downloads Check for the latest version of this document, SIM33EAU GPS manufacturers documentation, and example programs from the SiM33EAU GPS Module product page. Just go to www.parallax.com and search 28504. Copyright Parallax Inc. SIM33EAU GPS Module ( 28504) v1.0 3/30/2019 Page 2 of 10