Pmb 648 gps sirf arduino serial#
If you look in /var/log/syslog you will also notice it will have created the port as /dev/ttyUSB0 as it’s the first serial port. There the Prolific Technology entry is the GPS appearing as a serial port. PL2303 Serial Portīus 001 Device 002: ID 0424:9512 Standard Microsystems Corp.īus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub When plugged in it appears as a serial port.īus 001 Device 003: ID 0424:ec00 Standard Microsystems Corp.īus 001 Device 004: ID 067b:2303 Prolific Technology, Inc. Now it comes with a CD for Windows machines but we don’t need it – as the majority of GPS receivers I know of use serial & this is no exception. Raspberry PI with the A73KF GPS receiver plugged in I bought this several months ago when they had it on special offer for £19.99 – it usually retails for £29.99. The hardwareįor this experiment I’m using a USB GPS receiver from Maplin – product code A73KF.
Pmb 648 gps sirf arduino how to#
So this article shows how to use A GPS receiver with the Rasperry PI – although these instructions are not specific to the PI.
A GPS receiver then receives these signals and, as long as it has enough satellites and workout where you are by comparing the times from those clocks. GPS works by having a constellation of satellites in orbit and each one carries a highly accurate atomic clock & broadcast both their current position and the time. Now the obvious solution here is to use GPS as a time source. Now this is fine if you have a working net connection but what if you are not connected to the net? You might be in the field running the PI on batteries.Īs the other projects I have lined up for it is to connect my Meade LX200GPS telescope to the local network or to work with my (in prototype) radio telescopes so having an accurate clock is going to be required. Usually you would use the default settings and allow the PI to connect to thenet for it’s time. Now the Raspberry PI has no onboard Real time clock – which means it needs to use an NTP server to get the time when it starts. Now in theory that should be pretty simple as the current setup uses pywws to connect to the station and as that’s written in python it should work. One of the tasks I want to use a Raspberry PI for is to take over the duties of an existing ITX based linux box running my weather station.