Search found 678 matches

by paul
Sat Mar 13, 2021 3:59 pm
Forum: Sensors
Topic: Taking wind sensor off Rev P board
Replies: 2
Views: 162

Re: Taking wind sensor off Rev P board

Send your address to support@moderndevice.com and we’ll send you some sensors. The BOM is not public However adding leads will change the way it works just a bit too, adding some thermal resistance. I’d rather see you cut off the sensing stalk and resolder those wires back together - and I think it ...
by paul
Mon Mar 08, 2021 1:39 pm
Forum: Hardware
Topic: Fluxamasynth alternate MIDI input
Replies: 6
Views: 8610

Re: Fluxamasynth alternate MIDI input

HadriaGuy, We hope you'll have fun with the chip - it's very capable. Due to the low impedance of the the Arduino Uno serial port (1k ohm) you should use a different serial port - Arduino Mega or other microcontroller for intercepting the midi in - if you're going in that direction. Our optoisolator...
by paul
Sun Feb 21, 2021 11:02 pm
Forum: Hardware
Topic: Fluxamasynth - Sustaining Notes
Replies: 2
Views: 188

Re: Fluxamasynth - Sustaining Notes

yukonnor,

I think the sustain is built into the voice, so you just have to choice voices (see ProgramChange()) that have a high sustain level like organ, violin, synth, brass and flutes. There are probably more.

Paul
by paul
Fri Feb 12, 2021 4:58 pm
Forum: Sensors
Topic: Wind Sensor Rev P
Replies: 1
Views: 199

Re: Wind Sensor Rev P

Hi AA_021 There are people who have used the sensor in industrial applications, but mostly for qualitative rather quantitative results. eg is the fan running? for constant speed fans. In my opinion the sensor needs a larger regression with temp sensitivity built into it to be really useful. The prob...
by paul
Mon Jan 25, 2021 11:38 pm
Forum: Connecting to BBB, RBBB
Topic: Cannot upload to BBB
Replies: 1
Views: 309

Re: Cannot upload to BBB

If the BBB is really old, it may have a Diecimila bootloader on it. Try that in boards menu - also try Uno - one those should work. Are you using Mac or Windows? There can be problems with FTDI drivers on a Mac. You are better off deleting the FTDI drivers and using the Apple built in FTDI drivers -...
by paul
Thu Jan 07, 2021 4:37 pm
Forum: Sensors
Topic: Wind sensor rev P ESP32
Replies: 5
Views: 547

Re: Wind sensor rev P ESP32

With the ESP you can just run the battery to the sensor Vin and GND. Then connect the GND to ESP and also hook up however you are powering the ESP. If your run both ESP and Rev P from the 9V it's going to die fairly quickly. Give me a week or so and I can look over the code and post something for 3....
by paul
Thu Jan 07, 2021 4:32 pm
Forum: Sensors
Topic: Wind sensor rev P ESP32
Replies: 5
Views: 547

Re: Wind sensor rev P ESP32

A 9V battery is not that great a choice for powering the sensor unless you are just sampling once in a while and then shutting the sensor down. The sensor draws 30 mA which will drain a 9V in about 500 mAH so it would last about 16 hours tops depending on the battery and a lot of other factors. If y...
by paul
Mon Dec 28, 2020 11:13 am
Forum: Sensors
Topic: Wind Sensor for Wood Drying Kiln
Replies: 1
Views: 242

Re: Wind Sensor for Wood Drying Kiln

JohnLPoole, A lumber yard bought a lot of sensors from me to try the same thing. People don't report on their projects usually though, so I can't vouch for the results. I would suggest spraying the sensors with a coating for the high humidity - or we could coat them for you for a few dollars a senso...
by paul
Fri Dec 11, 2020 9:09 pm
Forum: Hardware
Topic: Fluxamasynth alternate MIDI input
Replies: 6
Views: 8610

Re: Fluxamasynth alternate MIDI input

odbasta


I'll take a look at the project. Did you try to dig through the Github repo - some - but not all - older versions are probably there. Feel free to post some code if you want and I'll try to get it going.

Paul
by paul
Tue Dec 01, 2020 11:56 am
Forum: Sensors
Topic: Current Sensor - Lowest Current?
Replies: 1
Views: 370

Re: Current Sensor - Lowest Current?

Somewhere in the 1-2 watt (so ~ 10mA) range. Because the sensitivity depends upon the geometry of your power cord, it's impossible to put a more accurate number on this. This is a hackaday article which uses our current sensor to monitor a washing machine. The application needs to sense the current ...
by paul
Wed Oct 21, 2020 9:53 am
Forum: Hardware
Topic: Fluxamasynth-32 and Arduino Boards Manager
Replies: 2
Views: 555

Re: Fluxamasynth-32 and Arduino Boards Manager

Use the ESP Dev Module for development on Flux 32 boards. The default options work just fine.

You can probably run the module at different frequencies as long as the serial port is set up for midi speeds (31250)

Paul Badger
Modern Device
by paul
Mon Oct 05, 2020 12:01 am
Forum: Sensors
Topic: Ambient temperature compensation for wind sensors (Rev. C vs Rev. P)
Replies: 4
Views: 986

Re: Ambient temperature compensation for wind sensors (Rev. C vs Rev. P)

Are you comfortable with a little smd rework? It just involves swapping one resistor and adding another I believe.
Send me email and I'll tell you how to mod the Rev P.
by paul
Fri Oct 02, 2020 4:14 pm
Forum: Sensors
Topic: Ambient temperature compensation for wind sensors (Rev. C vs Rev. P)
Replies: 4
Views: 986

Re: Ambient temperature compensation for wind sensors (Rev. C vs Rev. P)

The JeeLabs shop does not have any modified Rev P. sensors. Working on next revision now that will have more empirically derived ambient correction. Basically trimmed offset resistors, plus some other things. Shipping to Germany depends on method. You can get things there in 3 days but it’s expensiv...
by paul
Wed Sep 30, 2020 10:43 am
Forum: Sensors
Topic: Ambient temperature compensation for wind sensors (Rev. C vs Rev. P)
Replies: 4
Views: 986

Re: Ambient temperature compensation for wind sensors (Rev. C vs Rev. P)

Sriraj, At the present you are much better off with the Rev P which has a range of calibration and precision not found on the rev C If you include a note in your order about needing "the best ambient correction" I will send you a custom unit with a couple of resistors changed. This elimina...
by paul
Wed Sep 09, 2020 9:02 am
Forum: Sensors
Topic: TMP,OUT_pins readings
Replies: 1
Views: 614

Re: TMP,OUT_pins readings

yoc1983,

I just sent a request to share those images

Paul Badger
by paul
Mon Aug 31, 2020 9:49 am
Forum: Sensors
Topic: Wind sensor REV P - adding compensation
Replies: 5
Views: 1520

Re: Wind sensor REV P - adding compensation

yoc1983,

Just check the product page, and also news. I'll post blog posts as soon as I get new regressions done.

Paul
by paul
Fri Aug 28, 2020 9:21 am
Forum: Sensors
Topic: Power supply for Wind sensor Rev P
Replies: 2
Views: 844

Re: Power supply for Wind sensor Rev P

MendipMac , I would advise using a meter to measure the current on the whole setup, then calculating whether your battery is going to be able to support the application for a week. For example if the total current draw is 50 mAH then 50 x 7 x 24 = 8400 mAH AA batteries capacity is in the 2200 mah ra...
by paul
Thu Aug 27, 2020 6:57 pm
Forum: Sensors
Topic: Wind sensor REV P - adding compensation
Replies: 5
Views: 1520

Re: Wind sensor REV P - adding compensation

yoc1983 I just ran some dummy numbers through that expression and it can't possibly be correct. For the time, you have to wait for better data. If I can find that regression I'll try and rework to find where I went wrong. Usually when I get done with a new regression, I run it backwards with the inp...
by paul
Wed Aug 26, 2020 6:03 pm
Forum: Sensors
Topic: Wind sensor Rev P Temperature ambient or working?
Replies: 4
Views: 1426

Re: Wind sensor Rev P Temperature ambient or working?

MendipMac, I'm not a betting man but I would bet you're going to find that that boost circuit is dragging 3.3V down, so do check that. That is the reference for your ADC so you'll probably need to alter the math. The setup you have is not going to be viable long term, a 9V only provides about 700 mA...
by paul
Wed Aug 26, 2020 9:29 am
Forum: Sensors
Topic: Wind sensor REV P - adding compensation
Replies: 5
Views: 1520

Re: Wind sensor REV P - adding compensation

For the zero wind value - use a volt meter and measure the voltage with glass over the sensor, but don't lay the sensor flat against a table, angle it upward so sensor is in air on all sides. Measure the voltage from the temp sensor and run it through the equation VOUT = TC * TA + V0°C The Rev P use...