"Thank you very much for taking to time to help me out!! very informative!!!!"
nico's Discussions
Razor 9DOF + GPS + arduino serial com with NewSoftSerial
Started this discussion. Last reply by andy j Nov 4, 2010. 12 Replies 0 Likes
Hello, I am trying to combine a Razor9dof, a GPS (ls20031) to an arduino (duemi).I have configured the Razor with the ftdi cable. Works fine. Also connected to the arduino, on pin0, works fine. Here…Continue
Tags: newsoftserial, razor
displayer-logger of velocity-pitch-roll data on sailing boat
Started this discussion. Last reply by Chris Anderson Jun 6, 2010. 5 Replies 0 Likes
Hey guys,I am thinking about building a displayer-logger of velocity-pitch-roll data on my sailing dinghy (the boat looks like this …Continue
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M Luckham replied to nico's discussion Razor 9DOF + GPS + arduino serial com with NewSoftSerial"Increasing the buffer size reduces the amount of memory storage available for other things (variables and stack) which might or might not be an issue for your application. If you can afford a large buffer, make it large enough to hold the largest…"
andy j replied to nico's discussion Razor 9DOF + GPS + arduino serial com with NewSoftSerial"very interesting indeed! i was not aware of any of that!
please excuse my ignorance though - i am still new to this. would increasing buffer size have negative consequences? (im not at home right now to demo it) also, i didn't understand the…"
M Luckham replied to nico's discussion Razor 9DOF + GPS + arduino serial com with NewSoftSerial"The GPS is overflowing the receive buffer (data overrun) because there is no flow control, and your program cannot run fast enough to take the characters out of the buffer. My GPS runs at 4800, if I try to run at faster baud rate I start getting CRC…"
andy j replied to nico's discussion Razor 9DOF + GPS + arduino serial com with NewSoftSerial"I actually did just that. i should have been more clear
All the arduino was programed for was a single Newsoftserial port, and the standard serial port to relay the output to the arduino ide serial monitor.
when I used a sirfIII that was only…"
M Luckham replied to nico's discussion Razor 9DOF + GPS + arduino serial com with NewSoftSerial"To calculate accereleration, and acceleration vector, you will need to at least know distance travelled. This shows you how to calculate distance between two lat-lon points."
M Luckham replied to nico's discussion Razor 9DOF + GPS + arduino serial com with NewSoftSerial"If the sentences are coming out of the GPS, suspect your code first!
Just make a small loop which receives a character (if available) received from the GPS via newsoftserial and output it with Serial.print. Use Arduino IDE's serial monitor to…"
andy j replied to nico's discussion Razor 9DOF + GPS + arduino serial com with NewSoftSerial"Ive had lots of issues with NewSoftSerial and GPS. My (NMEA style) GPS is running at a set preferred 38400 baud, and the newsoftserial would only receive the GGA sentences. Funny thing was that if i hooked the gps's RX line to the serial RX on…"
M Luckham replied to nico's discussion Razor 9DOF + GPS + arduino serial com with NewSoftSerial"I use NewSoftSerial for a GPS logging application and an EM-406A SiRF modem - it works fine.
Code is like this:
// On the GPS Shield tie TX to Arduino pin 2, RX to pin 3 - works at 4800 baud (see GPSRATE constant)
// tie PWR to Arduino pin 4 ...…"
Johan Van de Velde replied to nico's discussion Razor 9DOF + GPS + arduino serial com with NewSoftSerial"Hey,
Can you show me how you build up the program further if you want to use for example the acceleration measuring? I don’t know how to do it.
Thanks in advance
Johan"
nico replied to nico's discussion Razor 9DOF + GPS + arduino serial com with NewSoftSerial"new problem is with the gps; I don't get the whole sentences through newsoftserial. Through serial pin0, everything is fine.
Is newsoftserial the way to go?
Regards,
Nico"
nico replied to nico's discussion Razor 9DOF + GPS + arduino serial com with NewSoftSerial"ok, dropping the razor baud rate to 38400 made it work."
nico posted a discussionRazor 9DOF + GPS + arduino serial com with NewSoftSerial
Hello, I am trying to combine a Razor9dof, a GPS (ls20031) to an arduino (duemi).I have configured the Razor with the ftdi cable. Works fine. Also connected to the arduino, on pin0, works fine. Here is the code:void setup() { Serial.begin(57600); }void loop() { if (Serial.available()) { Serial.print(Serial.read(), BYTE); }}However, using NewSoftSerial library doesnot work. I get lots of giberish as output.My code is:#include <NewSoftSerial.h>NewSoftSerial nss (4,5);void setup()…See More
3D RoboticsChris Anderson replied to nico's discussion displayer-logger of velocity-pitch-roll data on sailing boat
"As soon as we can, but we're not promising a date and it's not our highest priority given that we already have an excellent GPS solution. If you want to get up and running soon, go with the ublox."
nico replied to nico's discussion displayer-logger of velocity-pitch-roll data on sailing boat"reading from another your post (in http://diydrones.com/profiles/blog/show?id=705844:BlogPost:161651&commentId=705844:Comment:163803), support for the MT3329 should happen quite soon, am I right?"
3D RoboticsChris Anderson replied to nico's discussion displayer-logger of velocity-pitch-roll data on sailing boat
"uBlox is a high-quality unit that's optimized for aircraft (it will work fine for boats, too). If you're cost sensitive, you can use the cheaper EM406 (just 1Hz, but a solid module) or wait for us to support the MT3329. Up to you..."
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