Frontier SKYTRAQ VENUS 838 Manual

Low-cost sbas receiver design

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This document describes Open Hardware and is licensed under the CERN OHL v. 1.2.
You may redistribute and modify this documentation under the terms of the CERN OHL v. 1.2. (http://ohwr.org/cernohl)
This documentation is distributed WITHOUT ANY EXPRESS OR IMPLIED WARRANTY, INCLUDING MERCHANTABILITY, SATISFACTORY QUALITY AND
FITNESS FOR A PARTICULAR PURPOSE. Please see the CERN OHL v. 1.2 for applicable conditions
LOW-COST SBAS RECEIVER DESIGN
(SKYTRAQ VENUS 838)

Table of Contents

1.
COMPONENTS ................................................................................................................................................. 2
2.
REQUIRED EQUIPMENT .................................................................................................................................... 2
3.
BUILD PROCEDURE .......................................................................................................................................... 2
3.1.
3D Printing the Enclosure ......................................................................................................................................................... 2
3.1.1.
Main Enclosure ............................................................................................................................................................... 2
3.1.2.
Enclosure Lid .................................................................................................................................................................. 3
3.1.3.
Charger Tray .................................................................................................................................................................. 3
3.2.
Preparing the Components ....................................................................................................................................................... 3
3.2.1.
Attaching Headers to the SkyTraq Venus 838 Evaluation Board .......................................................................................... 3
3.2.2.
Preparing the Adafruit PowerBoost 1000 .......................................................................................................................... 4
3.3.
Assembling the Components ..................................................................................................................................................... 4
3.3.1.
Power Assembly .............................................................................................................................................................. 4
3.3.2.
HC-06 Connection ........................................................................................................................................................... 5
3.4.
Configuring the SkyTraq output baudrate .................................................................................................................................. 5
3.5.
Enabling SBAS on the SkyTraq .................................................................................................................................................. 6
3.6.
Installing the Components into the Enclosure............................................................................................................................. 6
4.
SETUP AND OPERATION ................................................................................................................................... 8
5.
TROUBLESHOOTING ........................................................................................................................................ 8
6.
CONTACT INFORMATION ................................................................................................................................. 8
pg. 1
Low-Cost SBAS Receiver Design (SkyTraq Venus 838) - 25/02/2020
Low cost receiver
Prototype

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Summary of Contents for Frontier SKYTRAQ VENUS 838

  • Page 1 Enclosure Lid .................................. 3 3.1.3. Charger Tray .................................. 3 3.2. Preparing the Components ............................... 3 3.2.1. Attaching Headers to the SkyTraq Venus 838 Evaluation Board ..................3 3.2.2. Preparing the Adafruit PowerBoost 1000 .......................... 4 3.3. Assembling the Components ..............................4 3.3.1.
  • Page 2 FITNESS FOR A PARTICULAR PURPOSE. Please see the CERN OHL v. 1.2 for applicable conditions 1. Components To build your own SkyTraq Venus 838 based SBAS-capable receiver with on-board power and Bluetooth connectivity, you will require the following main components:...
  • Page 3 As you can see in the figure below, and in the attached SkyTraq Venus 838 schematic, the pins that we will need for this project will be number 2 (Power for Bluetooth), number 8 (Ground for Bluetooth), and numbers 16 &...
  • Page 4 The Adafruit PowerBoost 1000 comes with a loose USB A jack. The USB A jack must be soldered onto the PowerBoost board, as this will be the main method by which the SkyTraq Venus 838 Evaluation board will be powered. There are two pins that must have headers soldered on (similarly to the previous step) to allow a Toggle switch to be attached, which will act as the Receiver on/off switch.
  • Page 5 “Close” button to open the connection. If this has connected properly, you will see some data in the “Message” and “Response” sections of GNSS Viewer. Now navigate to the “Binary” drop-down menu and select “Configure pg. 5 Low-Cost SBAS Receiver Design (SkyTraq Venus 838) - 25/02/2020...
  • Page 6 Please note that the solder connections to the battery may be fragile; take care not to force any of the components into their compartments, and to stop if anything feels too tight in order to avoid damage. pg. 6 Low-Cost SBAS Receiver Design (SkyTraq Venus 838) - 25/02/2020...
  • Page 7 11. Test the switch, you should be able to see lights on the SkyTraq board, the PowerBoost 1000, and on the HC-06. If everything is working, tighten the outside portion of the SkyTraq antenna connector until the board is snug. pg. 7 Low-Cost SBAS Receiver Design (SkyTraq Venus 838) - 25/02/2020...
  • Page 8 4. Setup and Operation You should now have a functioning SkyTraq Venus 838 GNSS receiver, which has been configured to use corrections from the Australia and New Zealand SBAS Test signals, using PRN 122. Once powered on, you can now pair to the HC-06 bluetooth module using a PC or Android phone.

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