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Thanks for your reply! Do you happen to know of an example of that?

I am looking for a servo library that has variable speed, that works with the Teensy4.1 Is there something like this?

Wow! Someone has got a hardon for Adafruit! I agree with you partly, but Adafruit is the knockoff seller here! Do you know where the Adafruit Trinket came from? ME!!! It was my design. I asked adafruit for some help with the software side of it, and they stole it! And that is how it mostly goes...

That is an amazing project though!!! For those small servos the PCA96XX servo controllers work fine!

@luni I started out with those servo controllers, but they are not up to the task. Besides from being glitchy, the power rail is not able to cary enough current for all the servos. That board is actually meant to drive LED's. That is why i made my own servo controller. Also, these exact same...

ok thank you. since smoothness and speed are of the essence i opted for 1K resistors.

Will 4.7K be too high a value, since the logic is 3.3V?

The servos work reliable on 3.3V logic. i added the resistors allready in my design. i just wanted to check if they were needed. so thank you. also thank you for the clearification on the pins current. I hope i don't blow up any more teensy's now ;)

I want to drive 15 servos (+ some sensors) on the Teensy 4.1 but i'm afraid im exceeding the max current draw. The servos are powered by a separate supply, so my question only applies to the signal pins for the servos. I know the max current draw per pin is 25mA, but if there is 15 servos that...

It whas ordered from a distributor. TINYTRONICS.NL Does that mean i have to take this up with them?

Sure you can download them here: https://we.tl/t-w48fGvd8xZ

I did inspect it with a loupe (with build in light) and didn't see anything. I know ESD can be a problem, that is why i always discharge before handling any electronics. But i'm sure i didn't touch it between it working and it stopping tot work.

I agree to a certain extent. Components like transistors, mosfets and voltage regulators, do tend to short when they break. There is nothing connected to the teensy and the short is still there. And nothing changed since it whas working before. And yes, it worked when it arrived, but it has...

Ok. Yeah i thought of that too however i am very carefull and always discharge before working on electronics. Thank you for your reply though.

By the way, there seems to be a short between GND and 3.3V. but not externally. so it must be in the voltage regulator right?

The problem is that there is nothing connected to the teensy. i removed it from the project. and it used to work, but suddenly stopped working without any changes... So i can assume it is dead... is there any guarantee? i mean can i get a replacement? i guess it is not normal if a teensy fails...

I tried to push the button for 15 seconds and more, but it does nothing. i even found that the square chip closest to the usb port get's warm when i plug it in. i know the button is not a reset button, (allthough it is called that quite often all around the web) but it does work that way. the...

I have the same issue with a Teensy 4.1. Did you ever figure out what the problem was? Or how to fix it if possible?

My 2 week old teensy was working before, however, often when i did a reset the small red led came on and nothing happened. The uploaded sketch would not run. But after disconnecting the power and plugging it in again, it would work. Tonight this happened again, but when i plugged it back...

Here the output from the python script: pi@raspberrypi:~ $ python3 i2ctest.py [104, 101, 108, 108, 111, 32, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] [104, 101, 108, 108, 111, 32, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] [104, 101, 108, 108, 111, 32, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0] [104, 101, 108, 108, 111, 32, 0, 0...

Anyone? i'm really stuck here.... i noticed that occasionally the so called 'non crashing' sketch, also crashes.

I have a Teensy 4.1 hooked up to a Raspberry Pi. I have communication working with an example sketch (arduino IDE) and i can request data with the Raspberry pi multiple times without any problem. I'm using this library instead of the default "Wire" because it has a 'slave' function...

I changed all values to sent and all values to receive to uint16_t and it worked! Though the speed is a bit unreliable. The time between the received array is not the same every time, and overall a bit slow. Might you have an idea what the problem is here, then i would be happy to hear it, but...

ok i understand, thank you. I will try it and report back here. i really appreciate your help.

Aaah, ok that makes sense. So if i understand you right, i must run that "getPayloadSize"command on both systems and compare them? I will make the appropriate adjustments to the code to make sure both systems use the same int-type. Thank you!

ok, question A: payload size is 32. what i'm setup for? no idea. i thought that "sizeof(data)" handled this automatically and B: How do i tell the mega 2560 (sender) to send the data is 4 bytes? or the teensy to convert 2 to 4 bytes? The Low bits first or high bits first, could be a thing. but...

I'm not sure if i'm checking for errors. i have never worked with these NRF modules before.

Your absolutely right, my bad. I should have posted the code. here is the receiving sketch (running on the teensy): #include <SPI.h> #include <nRF24L01.h> #include <RF24.h> RF24 radio(37, 38); // CE, CSN const byte address[6] = "00001"; int gotArray[13]; void setup() { SPI1.setCS(38)...

I managed to get it working by defining the miso and sck pin manually. But now the data (an array of 13 values) is somewhat scrambled. Some values are beeing displayed (serial monitor) correctly, but others are combined in the weirdest places, and the rest of the array printout say...

I have tried this but it does not work. Is there a way to manually declare the pins used? just like with software SPI? Or do you have any other ideas?

Thank you. i will try that. I'll post here again if it worked or not. Again, thank you for your time.

the RF24 1.3.4 by TMRh20 library

Yeah that is why i asked. i have tried before to change pins in libraries on arduino boards but that didn't work. so i wondered if it would work with the teensy since it has multiple dedicated SPI ports.

i have a servo controller board based on the Teensy 4.1. Unfortunately the default SPI pins are used for servos. I want to connect a NRF24L01 radio module and wondered if i can do so by utilising other pins. Pin 0 and 1 are in use for serial communication and 10,11,12 for servos. What are my...