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  1. Hi. Great project. I found some really new...

    Hi.
    Great project. I found some really new effects in a pedal called Freqout Natural Feedback Creator.
    My first association was that it might be worthwile implementing something of this kind in a...
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    Don't mix up nRF24L01 and nRF24L01+. nRF24L01 is...

    Don't mix up nRF24L01 and nRF24L01+. nRF24L01 is obsolete.

    There are chips/boards called RFM70/73/75. 70 and 73 are not fully compatible to the nRF24L01+. They offer some enhancements if...
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    Physical connection. Take a look at wikipedia and...

    Physical connection. Take a look at wikipedia and SALEAE. You connect it to the lines between teensy and nRF. You may have to solder a cable to the one connecting.
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    Exactly. As with many other threads there is one...

    Exactly.
    As with many other threads there is one easy way to start: use a proven example/setup as a start and then go on reading the data sheets and deepen your knowledge.
    As questions rise people...
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    Hi nameless. I am seeing that you want to go on...

    Hi nameless.
    I am seeing that you want to go on with this more to learn than to save money or time. I would like to encourage you since the nRF24L01 or similar is a good chip to learn about. Since I...
  6. Hi whollender. My late reply. I posponed the...

    Hi whollender.
    My late reply. I posponed the project for many reasons.Here is my update.
    I found several examples for simple doppler speed measuring with Arduino. A high gain amp and a bandpass is...
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    I had a similar problem. The reason was a bad...

    I had a similar problem. The reason was a bad pullup/pulldown situation. Check that idle state of your RS485 lines is correct. Otherwise at the moment when the drivers are enabled the receivers will...
  8. Thread: PCB-production

    by eduardo
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    Since we have spoken about professional...

    Since we have spoken about professional autorouters in this thread I want to mention that electra from KONEKT is included (lim. to 250-pins) in the free version of Target3001. You can use it with...
  9. Thread: PCB-production

    by eduardo
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    I think it was this link:...

    I think it was this link: https://github.com/nikropht/FreeRouting/
    Don't remember 100% exactly. Simply clicked at some threads in the freerouting forum. Edited:...
  10. Thread: PCB-production

    by eduardo
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    Agree on the reliability of EAGLE. UI is not what...

    Agree on the reliability of EAGLE. UI is not what should be expected these days.
    Feerouter is highly recomendable and still available. Google for it and download the Java code. It's definitely worth...
  11. Thread: 5 sec delay..

    by eduardo
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    I can recommend metro library. I am using it for...

    I can recommend metro library. I am using it for a long time and have even ported it to mbed. It leads to a non-preemptive task-like structure in code and it does not load any hidden timer IRQs....
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    Hi syntesis. Your circuit looks right to me. To...

    Hi syntesis.
    Your circuit looks right to me.
    To be precise, pullups may well be connected to 5V as you did since LCD and teensy are 5 Volt based or tolerant. I even prefer 5V because of better...
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    The bootloader code should not be the cause, I...

    The bootloader code should not be the cause, I believe.
    Have you tried to load your programm into a teensy 3.0 instead of a 3.1? This should be the correct target for a programm which was originally...
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    The K22 may well surpass the K20 in market volume...

    The K22 may well surpass the K20 in market volume achivineg a lower price and giving pjrc a better margin. I would be happy to see a K22 board, specially since I do not see great SW changes necessary...
  15. There may be a solution implementing a state...

    There may be a solution implementing a state machine driven triple decoder.
    There is a nice commented lib that explains that on http://www.buxtronix.net/2011/10/rot...-properly.html
    This must be...
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    Forgot to mention that the line #if...

    Forgot to mention that the line

    #if defined(__AVR__)
    above the mentioned code snippet must be deactivated otherwise the block is not active on the teensy 2.0
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    Encoder library bouncing

    Hi.
    I have spent several hours with encoder problems using teensy 2.0.
    The encoder is used for user interface input and has a very small stepsize (ALPS). Unfortunately I have to adapt my SW to a...
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    If teensy++3.1 is basicly a K22 board with 48 DIL...

    If teensy++3.1 is basicly a K22 board with 48 DIL pinning I expect ~ $25.
    A good price point would make all "power users" specially of the audio lib migrate to the T++ which would make support for...
  19. Thread: Audio Library

    by eduardo
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    Running both installers "as Administrator" should...

    Running both installers "as Administrator" should fix it.
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    Hi Constantin. Let's not put too much of...

    Hi Constantin.
    Let's not put too much of analog/EMC special aspects into this thread. I fear we miss the topic.
    In short. You are right. BLM ist the prefix. As I said, chose the type that carries...
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    What about a simple MK22FX512VLH12 version of...

    What about a simple MK22FX512VLH12 version of teensy 3.1?
    HW needs no changes at first sight.
    SW may start with FPU support for a start and add new clock rates after a while.
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    Hi Paul. Please allow me some suggestions for a...

    Hi Paul.
    Please allow me some suggestions for a new HW.
    Whenever you use small ceramic caps in parallel to a cap in the 1..10F range please use 10nF instead ot 100nF. (See teensy 3.1) The reason...
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    I have installed Arduino 1.0.5-r2 and patches for...

    I have installed Arduino 1.0.5-r2 and patches for iteaduino-lite.
    Teensyduino installer would not recognize the Arduino installation. (Even running as administrator)
    I have to start from scratch...
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    I am fully aware of the float variables. Thanks....

    I am fully aware of the float variables. Thanks.
    I was trying to test teensy3.1 performance on a real world example and I believe that the improvement should be higher. Float emulation contains...
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    Neural Network Example - ArduinoANN

    Hallo.
    I have compiled a demo for an artificial neural net. See http://robotics.hobbizine.com/arduinoann.html
    On Arduino 1.0.5 and teensyduino 1.18 I have found that one ANN training cicle takes...
  26. Hi Whollender. I made a quick measurement....

    Hi Whollender.
    I made a quick measurement. Output waveform moving one hand away ~20cm distance. Signal is 300mV (Millivolts) maximum moving my hand very close to the sensor.
    2171
    Detecting objects...
  27. You are right about the gain. Good point.:)...

    You are right about the gain. Good point.:)
    However noise is only a problem in combination with bandwidth. BW is <1KHz.;)
    An OpAmp with 3nV/SQRT(HZ) gives 90nVolts equivalent at the input. That...
  28. teensy 3.1, Radar proximity/speed sensor readout

    Hi.
    Does anybody have experience connecting a radar proximity sensor to teensy 3.1?

    I am thinking about the Hygrosens RSM-3650....
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    My professional resume as a consultant. ...

    My professional resume as a consultant.

    Cheapest, works ok: Hantek 6022BE
    Next: Rigol DS1052E (Exceptionally good user interface. Very good stability and features. Low res display. All in all a...
  30. I need to solve the same problem. As I read in...

    I need to solve the same problem.
    As I read in the text about the teensy loader command line mode it is recommended to use a second teensy to solve this problem. :eek:
    However connecting teensy 3.1...
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    Teensy 3.1 is a Cortex-M4 (without FPU) w/ 256K...

    Teensy 3.1 is a Cortex-M4 (without FPU) w/ 256K Flash and 64K Ram. ADC is 16 bits. Two DACS.
    The module is small and inexpensive. Add-Ons for micro-SD, Ethernet and HiRes-Audio available.

    In my...
  32. Hi. I am using Notepad++ in a similar way. Can...

    Hi.
    I am using Notepad++ in a similar way.
    Can you provide the settings or the way to call "verify" or "verify/upload" externally by sublime or Notepad++?
    Thanks.
  33. Now it says: Arduino: 1.0.5-r2 (Windows 7),...

    Now it says:

    Arduino: 1.0.5-r2 (Windows 7), Board: "Teensy 3.1"
    In file included from analogCont_analogRead.ino:11:0:
    C:\Users\Eduardo de...
  34. Actually I have teensy 3.1 boards. I just had the...

    Actually I have teensy 3.1 boards. I just had the setting for the ide on 3.0 for testing if it would compile.
    For the actual project I will not need synchronous ADC.
    Pedro should get the feedback....
  35. Hi. I tried to compile the examples but all of...

    Hi.
    I tried to compile the examples but all of them give an error in ADC.h
    The ADC lib as well as Arduino 1.0.5r2 and teensyduino 1.18 are uptodate.
    Please see below.
    Commenting the following...
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    FastAnalogIn from mbed is quite interesting

    FastAnalogIn from mbed is quite interesting
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    A lot of interest in this thread. Great....

    A lot of interest in this thread. Great.
    mbed-API @bloodline: Thanks for your offer. I will start a new customer project (scientific instrument) in May. By that time I will know more precisely what...
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    How is the progress on this topic? I am...

    How is the progress on this topic?
    I am struggling whether to abandon teensy 3.1 just because I prefer to use mbed.
    Teensy 3.1 is still the best module around for my choice and the solution for the...
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    Thank for all the practical info. I also use...

    Thank for all the practical info.
    I also use Arduino IDE with external editor enabled just as Paul. Editor is Notepad++.
    What I am missing is the jump to lines containing errors.
    Can this be...
  40. Bootloader for firmware update at customer site

    Hi.
    I have chosen teensy 3.1 for my running customer project.
    What I would like to integrate into the device is the possibility for a firmware update done by the customer on site.

    I would send a...
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