Search found 648 matches

by paul
Mon Sep 23, 2013 4:24 pm
Forum: Sensors
Topic: Pulse Sensor Code updated with HB & PSO2 readings
Replies: 6
Views: 7440

Pulse Sensor Code updated with HB & PSO2 readings

I coded up an example that outputs heartbeat, signalsize and PSO2 readings from the Modern Device pulse sensor.
The code is all here: https://github.com/moderndevice/SI1143_ ... ox_Sensors
by paul
Tue Sep 17, 2013 9:41 am
Forum: Connecting to BBB, RBBB
Topic: USB-BUB logic level
Replies: 2
Views: 5834

Re: USB-BUB logic level

BobW2,

Not only is it fine to set the logic level to 3.3Vs on both BUBs, it is the default setting on the BUB2 that comes with the solder jumpers set to that level.

The reason, as you have found out, is that it is more universal. 5 volt boards still see 3.3volts as logic high.

Paul
by paul
Tue Aug 27, 2013 9:35 am
Forum: Hardware
Topic: SOLVED: USB BUB II Not Working
Replies: 1
Views: 4365

Re: SOLVED: USB BUB II Not Working

boozler, Glad you got it going. For others working on troubleshooting problems, it's not always the complicated things that failed. Simple things fail just as often it seems. One morning our SMT oven failed and we got the case off before discovering it was just the power cord that had gone bad, appa...
by paul
Sat Aug 24, 2013 8:34 am
Forum: Connecting to BBB, RBBB
Topic: Same old, same old Connect problem.
Replies: 10
Views: 16874

Re: Same old, same old Connect problem.

Jason, That Arduino version is mighty old, time to update. Unplug the friend from the BBB. Go the Tools -> Serial Port in the Ardunio IDE and see if you see the COM port for the Friend. If you don't see it then one of two or three things is going on. You need to install drivers here http://www.ftdic...
by paul
Thu Aug 22, 2013 3:00 pm
Forum: Sensors
Topic: Wind Sensor alternative OPAMP
Replies: 3
Views: 8011

Re: Wind Sensor alternative OPAMP

Should work fine - but 6 volts only I think

Paul
by paul
Thu Aug 22, 2013 10:18 am
Forum: Sensors
Topic: Wind Sensor alternative OPAMP
Replies: 3
Views: 8011

Re: Wind Sensor alternative OPAMP

I didn't use that op - amp anyway - sorry about the schematic. I just grabbed the first quad SOIC op amp I found and plunked it down. (hence the note) Any general purpose rail to rail type will work. We're using TLV2434AIPWR chiefly because it can handle higher voltages - I think I was originally lo...
by paul
Fri Aug 16, 2013 1:13 pm
Forum: RBBB
Topic: Bytebeat/Byteseeker Jr kit - no sound after building
Replies: 1
Views: 5798

Re: Bytebeat/Byteseeker Jr kit - no sound after building

gaitskell, The software was not on the chips. The sketch is on the page you referenced Maybe it wasn't when you wrote this. To upload it, you'll need an FTDI cable or something like our BUB, Download the Arduino IDE Create a new sketch Paste in the sketch code Choose tools->boards UNO Chose tools->s...
by paul
Fri Aug 16, 2013 1:00 pm
Forum: Sensors
Topic: 3-axis accererometer MMA7361
Replies: 1
Views: 6279

Re: 3-axis accererometer MMA7361

mdAndy, atan2 (and all the trig functions) return numbers in radians. there are 2 pi radians in a circle so your data probably goes from either 3.14 to -3.14 or 0 to 6.28 Does that synch with values you're getting? You have to be a math head (not me!) to love radians, and then it all makes perfect s...
by paul
Thu Aug 15, 2013 4:08 pm
Forum: Sensors
Topic: Compilation errors LibHumidity and LibTempTMP421
Replies: 20
Views: 27168

Re: Compilation errors LibHumidity and LibTempTMP421

Michael, Are you using the example sketch from the library? Examples -> LibHumidity -> GetRelativeHumdity ? You should try making a new libary folder temporarily (Save the old one in something like "library old") Download the library again, put it in the new library folder (Look in Arduino IDE ->Fil...
by paul
Mon Aug 12, 2013 11:34 am
Forum: Sensors
Topic: Compilation errors LibHumidity and LibTempTMP421
Replies: 20
Views: 27168

Re: Compilation errors LibHumidity and LibTempTMP421

What board are you using? Compilation changes some things with various boards. Give me the platform you are using. Sorry this is such grief - I'll help you get to the bottom of this as soon as I hear from you. Or maybe call the shop when you are in front of your computer and I'll try to talk you thr...
by paul
Mon Aug 05, 2013 5:08 pm
Forum: Sensors
Topic: Compilation errors LibHumidity and LibTempTMP421
Replies: 20
Views: 27168

Re: Compilation errors LibHumidity and LibTempTMP421

michael, I just checked both files and re-uploaded to github. I did find an empty folder where I thought the files should be so something went wrong in a transfer that I never found out about. Try them out and let me know your results. I was using 1.0.4 so it's also possible the Arduino guys broke s...
by paul
Sat Aug 03, 2013 8:40 pm
Forum: Sensors
Topic: Compilation errors LibHumidity and LibTempTMP421
Replies: 20
Views: 27168

Re: Compilation errors LibHumidity and LibTempTMP421

Try the versions on GitHub and see if they work. https://github.com/moderndevice?tab=repositories

I'll check when I get to office on Monday - but I'd appreciate an email or a post here to let me know if the GitHub libraries get the job done.

Thanks,

Paul
by paul
Mon Jul 22, 2013 6:26 pm
Forum: Hardware
Topic: fluxamasynth with duinomite
Replies: 6
Views: 7396

Re: fluxamasynth with duinomite

hitsware,

Glad you got it going.

BASIC ug.. er takes me back :)

Paul
by paul
Mon Jul 22, 2013 6:20 pm
Forum: Software
Topic: BUB II && ATMega644P - Some Help Please?
Replies: 3
Views: 7243

Re: BUB II && ATMega644P - Some Help Please?

The Hermit, You installed all the Sanguino libraries in Arduino, correct? From what I remember the last time I used Sanguino chip I had no problems with the upload. I do think that what we are providing on the chip is the Duemilanove bootloader though and not optiboot. Let me check on that tomorrow ...
by paul
Thu Jul 11, 2013 7:00 pm
Forum: Hardware
Topic: fluxamasynth with duinomite
Replies: 6
Views: 7396

Re: fluxamasynth with duinomite

I don't know the form factor of the duinomite, but you can figure that out. The fluxamasynth mates with a standard UNO or Duemilanove form factor - but this is not at all required. The fluxamasynth could not be more simple to interface - besides power and ground it just requires a pin (for software ...
by paul
Tue Jul 09, 2013 2:00 pm
Forum: Connecting to BBB, RBBB
Topic: Yet more RBBB upload problems
Replies: 6
Views: 10130

Re: Yet more RBBB upload problems

Glad you got it going. Sometimes brute force is the only way to debug - it builds chops for the next time around :)

Paul
by paul
Thu Jun 20, 2013 1:30 pm
Forum: JeeNode and Wireless
Topic: What length antenna for 915 mhz?
Replies: 4
Views: 7731

Re: What length antenna for 915 mhz?

tburt11, Sorry about the really slow reply - I just saw this slipped through the cracks. Why is the JeeLink shipped with an antenna that is not tuned for the frequency of the radio? It should be in the range of 80 mm. We have found it doesn't matter that much as long as it's close. Apparently someon...
by paul
Wed Jun 19, 2013 9:46 am
Forum: Sensors
Topic: SHT21 Humidity and Temp Sensor - 3.3v compatible?
Replies: 1
Views: 6648

Re: SHT21 Humidity and Temp Sensor - 3.3v compatible?

The SHT21 is completely 3.3V compatible. It has a 3.3V regulator on board and signal translation for higher voltage signals, but works great at 3.3 volts.

Paul
by paul
Mon Jun 10, 2013 2:33 pm
Forum: Hardware
Topic: Fluxamasynth and Arduino Mega
Replies: 2
Views: 5315

Re: Fluxamasynth and Arduino Mega

Charles, Q 1 Can I situate the synth in the same position as the ethernet board on the mega? I'm not quite following that - the synth board only really picks up 5V power (it has 3.3V regulator on board) and serial in from the arduino board - so if the power pins mate with traditional power pins, you...
by paul
Wed May 15, 2013 4:24 pm
Forum: Development
Topic: Extra output power pin on RBBB board?
Replies: 3
Views: 7831

Re: Extra output power pin on RBBB board?

You should see an "upload attachements" tab when you have the editor window open. Do you see that below the editor window?

Paul