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Dear all, I built a DIY collective with throttle and rudder for my X-Plane 12 simulator using a Teensy 2.0++, which I still had in my electronic box. The board is working properly but I get one strange problem when I change in Teensduino from "Serial" to "Keyboard + Mouse + Joystick" mode. In...

Ok sorry, the real intention was to find that article you wrote somewhere. Because I need it as a basis to understand what's going up with the porting of software. So I think I wrote in the wrong section. Please move the whole thread to Project & guidance, since I have no snippet of code that...

That's the problem! It compiles without any error. So the problem is: a declared int in Arduino is 16 bit a declared int in ARM is 32 bit wide. What happen if I tried to copy and shift 8 bit registers in a ARM Architecture like in the example above?

Hi Rob, thanks for your answer!! Paul Stoffregen knows very well about that discussion. But I think it was an article posted on internet, somewhere, and Paul did post here in this forum just the link to that. Anyway: I developed some libraries for Arduino 2009 at the time. The library just...

Looking for a discussion about porting from 8 bit to ARM Hi guys, I m looking everywhere for a discussion opened by Paul (the brain behind Teensy) some years ago. In this article/discussion Paul is going to explain that the most code used for Arduino (for example for reading sensors from a...

Hi Steve, ok...thank you very much. I took a look at the whole website and have read lot of thing. Very helpful for me was this link and this here. They explain basically how it works and what it is. But since I m still a newbye I need a little help. Since I wanted to buy the following item do...

Hello, in my new project I need to transfer datas from the sensor to the PC. So I need to connect the Xbee adaptor to the Teensy 3.0 and receive them into my PC. Which module should I buy? How can I connect and transfer data from my remote board 8teensy) and the PC?. Thanks Regards

Ok, sorry I thought nobody wanted to look into ma huge code to find out the problem. And I wanted to keep "private" my code until it is published under a license. Anyway I realize that the problem is the RC reciever from where I m going to read the pulse. THIS is not stable enough. The teensy 3...

Hi everybody, Since I m experiencing problems by drivings servos with my T3 I checked the PWM output from the board with an oscilloscope and understood that the signal is not enough stable to drive the servos (RC Servos). As a result the servos are glitching all the time. Since the reason is the...

I take opportunity to continue on this post for a short question realted to IMU and I2C bus. In the datasheet of an IMU board, I cannot understand this connections: . The board should work with 5V (Vin) and 3.3V (Vdd) systems, but it seems that using the Vdd (3.3 V) both resistances of 4,7 kOhm...

According to my experience for simple debugging and programming porpouses doesn t happen anything. But please use at least an USB Hub like this one for example. Of course I think you need not a capacitor for the IMU but for the Teensy. For USB applications should be about 100 uF Regards

How about a simple voltage regulator to deliver 3.3V? I suppose you want to read datas from a IMU (with 9 or 10 DOF) and since you are not using the USB, you use (I suppose) a battery which supplies 4.8-6V. Ok, I suggest you to supply the Teensy with the battery and and than (on another track on...

Hi! Just a small question. According to this diagramm are 3.3 V pins connected toghether. But on the small "Datasheet" shipped with my board is one pin* marked with (100 mA max), the other 2 not. Question: does this max current drainage apply for all of them? Or for the other two other values...

Ah! Of course 4,7kOhm resistor and command were during the tests implemented.

Ok I found it out. It is true that the problem is the Wire.h library but because it tries to interrogate a sensor that is not there (physically) [at least in my experiments]. I did many tests and at the end T3 stucks every time I tried to run the code. I realized that this part of code the...

But I m using only Linux!!! Anyway...tomorrow I m going to take a long break and try different configuration (with library, with/without resistors, ...) and I will post your my result. Could you me please confirm I should connect the 4,7kOhm pullupresistors for SDL and SDA to the 3,3V on the...

Paul, try to disconnect and connect your board before starting the serial monitor!

no yes, but I left it commented (it was not compiled) Ok, tomorrow I will try connecting pull up resistors and compiling the library Anyway the Teensy works now.

Do you mean, that you can compile the sketch on the PC but not upload? I have the same version of Arduino and I found I had trouble with the I2C bus. Please take a look here

[SOLVED]Teensy 3.0: USB interface dead? Ok I think I found a bug. I just must admit, I was writing a program using the protocol I2C but I didn't connect any sensor to the bus, because it is still on the way (I ordered while writing the code). So I just removed the library "Wire.h" from all the...

[SOLVED]Teensy 3.0: USB interface dead? Hi to everybody. Since I cut the USB power from the battery power (as explained in this post) I have a really big issue with my Teensy 3.0. It simply doesn t work. Putting both power I can see the led blinking (because it was so in the last program I...

Perfekt! Thks

Hi. As stated above I cannot change the picture in my avatar. Clicking on the picture in my page redirect me to the same page, without the possibility to chnage upload an image. I use Iceweasel last version on Debian 7 Maybe it happens only to me... Thanks

Thanks Paul, I didn t know that link. I thought that reading from an Interrupt routine should not be a problem, since register for writing and reading different are. Here my code: // This ISR routine triggers when an event occurs. This could happen the channel CH0 // changes level...

For my understanding, according to this link: http://www.pjrc.com/teensy/pinout.html is it possible to feed 5V directly through Vin even if the two pads are not cut. Or should one cut the both pads in every case?

Hi Maybe it sound like a noob question but I really need some help to solve this problem. Let s say I need to copy in a variable the following Register: register_var = GPIOC_PDIR; to perform later some bit-calculations (and not mathematical operations). How should I declare my register_var...

Hi Nobody can tell me how to convert the timer into millseconds?

Thrust me. That because you never needed an application which must be really RTOS, where time constrains and priorities between different tasks are the most important thing, I asked me thosund time why should I need FreeRTOS for my Arduino and Teensy applications. Then I had to learn for my...

Hi To be honest I had already started with AVR similar projects, to read PWM signals from a RX receiver. Since I switched to Teensy 3 (because I need the more powerful processor) I rearranged my old projects using attachInterrupt() function and it works nicely. Now I wanted to rewrite my code...

Hi Bill I m trying using FreeRTOS (last version) and works very good But when I try to use Flex Timer 0 the processor and tasks stuck. Is there any compatibility issue? Or should I use another Time rfor my application?

Thanks digitalmisery! I m really happy to know how you wirte that code. That is waht I m looking for. One question. In the documentation I cannot find which pins on the board could be used for which Flex Timers. Figure 35-1 on page 691 is too much general. Could you give me some hits!?! Thanks...

Hi, Again congratulation about the board (Teensy 3.0). I use it since 2 days and I confess it is really perfect and very impressive. I will buy more of them in the next. Just one question. Since I m using Teensarduino and all the sfotware is copied into the arduino folder, if I use the servo...

Hi Compiling my code cannot recognise the compiler the labels: PIN0, PIN1, PIN2.... How are mapped those GPIO in Teensy 3.0 ? Which labels are usable? Regards

Hi I m new here. I receive today my first Teensy 3.0, the first time I use an ARM.In the past I had very good experience with Arduino, MicroChip and other 8-bit Microcontrtoller, but for the ARM this is the first time. Rigth now I have problems with interrupts, since I didn t find any example or...