> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt # Adafruit Ultimate GPS Breakout with GLONASS + GPS - PA1616D - 99 channel w/10 Hz updates **Type:** Product page · **SKU:** ADA5440 · **Brand:** [Adafruit](https://core-electronics.com.au/brands/adafruit-australia) **Page:** https://core-electronics.com.au/adafruit-ultimate-gps-breakout-with-glonass-gps-pa1616d-99-channel-w10-hz-updates-1.html ([markdown](https://core-electronics.com.au/adafruit-ultimate-gps-breakout-with-glonass-gps-pa1616d-99-channel-w10-hz-updates-1.html.md)) This version of the Ultimate GPS is even MORE Ultimate, with support for more GPS-like networks such as GLONASS, for even more coverage worldwide. It uses... ## Pricing - **Price:** $58.45 (inc GST) — $53.14 AUD, exc GST - **Quantity discounts:** 10+ $51.55 (exc GST) · 50+ $50.48 (exc GST) ## Availability & dispatch - In stock, ships same business day if ordered before 2PM (Australia/Sydney). - We can dispatch 8 today, and up to 45 more in 8–12 days. ## Restrictions Restrictions apply to this equipment as it uses button/coin cell batteries: - The equipment is intended to be used in trades, professions or industries - The equipment is not intended for sale to the general public - The equipment is not intended to be used where children are present - You are aware that this equipment may not meet child safety testing requirements as it is not intended to be used by consumers or general public, but rather, is intended to be used in trades, professions or industries in conjunction with the limitations and restrictions listed above - You are aware that these restrictions are due to a change in [A](https://www.accc.gov.au/media-release/businesses-on-notice-as-mandatory-button-battery-laws-commence)[ustralian legislation in 2022](https://www.accc.gov.au/media-release/businesses-on-notice-as-mandatory-button-battery-laws-commence) for button/coin cell batteries ![Button Battery Warning](https://core-electronics.com.au/attachments/uploads/iec-button-battery.png) A declaration of use will need to be submitted during checkout. ## How to buy - **Build a cart:** compose `https://core-electronics.com.au/cart/link?items=ADA5440:1` (comma-separated SKU:qty pairs) and share the link. Opening it shows a confirmation page with live pricing and stock before anything is added to the cart. - **Verify the cart first:** fetch `https://core-electronics.com.au/cart/link/ADA5440:1.md` for live line prices (inc & exc GST, quantity discounts applied), stock and dispatch estimates, and totals. Append `/to/{AU-postcode}` (or `/to/{country-code}:{postcode}`) before `.md` for delivery options and prices to that destination. Unknown, retired, or out-of-stock SKUs are flagged. (Query form `cart/link.md?items=...` also works but some robots parsers refuse query strings here.) - **Checkout** is completed on-site and includes a captcha at the payment step. Share the cart link; checkout takes it from there. - **Search the catalogue:** `https://core-electronics.com.au/search/{query}.md` (URL-encode the query; pages 2-3 at `search/{query}/{page}.md`; `search.md?q=` also works) - **Payment methods, purchase orders, policies and contact details:** https://core-electronics.com.au/llms.txt ## Description This version of the Ultimate GPS is even MORE Ultimate, with support for more GPS-like networks such as GLONASS, for even more coverage worldwide. It uses a slightly taller module than Adafruit's classic Ultimate GPS, and uses a little more power. Otherwise its almost identical in functionality: - -165 dBm sensitivity, 10 Hz updates, 99 channels - GPS + GLONASS support - 5V friendly design and only 30mA current draw - Breadboard friendly + two mounting holes - RTC battery-compatible - Built-in datalogging - PPS output on fix - Internal patch antenna + u.FL connector for external active antenna - Fix status LED - External antenna support and Pulse-Per-Second output [Compared to the 'classic' MTK3339 chipset firmware](https://core-electronics.com.au/adafruit-ultimate-gps-breakout-66-channel-w-10-hz-updates-version-3.html), the commands for querying the antenna have changed slightly so existing projects may need to update their firmware. Check the datasheet below for the new antenna query commands. Also, NMEA sentences will start with *$GN* instead of *$GP* when both GPS and GLONASS are available. The breakout is built around the MTK3333 chipset, a no-nonsense, high-quality GNSS module that can track up to 33 satellites on 99 channels, has an excellent high-sensitivity receiver (-165 dBm tracking!), and a built-in antenna. It can do up to 10 location updates a second for high speed, high sensitivity logging, or tracking. Power usage is incredibly low, only ~29 mA during navigation.Best of all, Adafruit added all the extra goodies you could ever want: an ultra-low dropout 3.3V regulator so you can power it with 3.3-5VDC in, 5V level safe inputs, ENABLE pin so you can turn off the module using any microcontroller pin or switch, a footprint for optional CR1220 coin cell to keep the RTC running and allow warm starts and a tiny bright red LED. The LED blinks at about 1Hz while it's searching for satellites and blinks once every 15 seconds when a fix is found to conserve power. If you want to have an LED on all the time, They also provide the FIX signal out on a pin so you can put an external LED on.Two features that really stand out about the MTK3333-based module are the external antenna functionality and the built-in data-logging capability. The module has a standard ceramic patch antenna that gives it -165 dBm sensitivity, but when you want to have a bigger antenna, you can snap on any 3V active GPS antenna via the uFL connector. The module will automatically detect the active antenna and switch over! [Most GPS antennas use SMA connectors so you may want to pick up one of Adafruit's uFL to SMA adapters.](https://core-electronics.com.au/sma-to-ufl-u-fl-ipx-ipex-rf-adapter-cable.html) Comes with one fully assembled and tested module and a CR1220 coin cell holder. [A CR1220 coin cell is not included, but Adafruit have them in the shop if you'd like to use the GPS's RTC](https://core-electronics.com.au/cr1220-replacement-battery-for-icufflinks-inecklace.html) Adafruit have a nice fancy library for GPS usage, with background parsing, and can set and query the built-in GPS logging capability (called LOCUS). A full tutorial is also available, which has tons of information about the module, how to use the data logger, example code for both CircuitPython & Arduino, and more Interested in the GPS module just by itself? [We carry it over here](https://core-electronics.com.au/ultimate-gps-module-pa1616d-66-channel-w-10-hz-updates-mtk3333-chipset.html). ## Technical Details - Satellites: 33 tracking, 99 searching - Patch Antenna Size: 15mm x 15mm x 4mm - Update rate: 1 to 10 Hz - Position Accuracy: < 3 meters (all GPS technology has about 3m accuracy) - Velocity Accuracy: 0.1 meters/s - Warm/cold start: 34 seconds - Acquisition sensitivity: -145 dBm - Tracking sensitivity: -165 dBm - Maximum Velocity: 515m/s - Vin range: 3.0-5.5VDC - MTK3333 Operating current: 34mA acquision, 29 mA tracking - Output: NMEA 0183, 9600 baud default, 3V logic level out, 5V-safe input - DGPS/WAAS/EGNOS supported - FCC E911 compliance and AGPS support (Offline mode : EPO valid up to 14 days ) - Up to 210 PRN channels - Jammer detection and reduction - Multi-path detection and compensation Breakout board details: - Weight (not including coin cell or holder): 8.5g - Dimensions (not including coin cell or holder): 25.5mm x 35mm x 6.5mm / 1.0" x 1.35" x 0.25" [Datasheets, schematics, GitHub links, Fritzing, and more available in the product tutorial](https://learn.adafruit.com/adafruit-ultimate-gps/downloads) ## Images - [Product image 1](https://core-electronics.com.au/media/catalog/product/A/D/ADA5440-1.jpg)