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I've been hitting a roadblock where the I2C bus gets wedged during resets and sketch loads and requires a full power off to restore sanity. The setup is a Teensy 3.2 attached to three custom boards each running a SAMD11 with an I2C slave code and pull up resistors. This setup works just fine...

I'm creating a clock for my daughter that has a 60 Neopixel ring AND a SSD1306 OLED display. I am using a Teensy 3.2 and a prop shield to level shift and buffer the neopixels. I've been noticing that I cannot seem to get the SSD1306 to work AND the strip of neopixels. I am using the adafruit...

Not sure if this is a technical support question or just a general request for project help. I'm working on a project called Makernet where I am designing lots of little devices that are all accessible on an I2C-like bus. This is a OSH project. This project aims to use a Teensy as one of the...

Hi Teensy community - After successfully getting a DIY teensy working for one of my hobbiest projects last year, I decided to try again and this time I've run into trouble. I was hoping someone could help shed some light on what I should do next to troubleshoot. I've narrowed things down to the...

I'm looking to build a small portable toy for my daughter that plays different sounds. I've had a lot of fun using the Teensy 3.2 + prop shield to generate synth music following Paul's many examples, but now I want to integrate this into part of a larger project. My ideal situation would be...

First, a big thanks to Paul and everyone here. The Teensy system has been the bedrock of my hobby projects for the last 3 years. I finally got around to trying to make my own teensy, mainly so I could one day build something more "integrated" and compact and also to level up my weekend hacker...

I'm seeing some odd behavior with Kaiman filtering and the prop shield. After a minute of great heading calculations, suddently the readings become sluggish and incorrect. I am using Teensy 3.2 on a IMU prop shield, running at 72Mhrz. My application is fairly straightforward: I have a ring of...

I just received my prop shield with IMU and Teensy 3.2 and I've encountered a strange, repeatable hang using the FastLED library. I am using the "FirstLight" sketch with the examples provided by Paul on the main page to raise pin 7. When powered by USB, the whole teensy freezes after about 5...

I'm building a cool toy for my daughter with the Teensy 3.1 and a SSD1351 from Adafruit. I'm running into trouble getting access to the SD card while also driving the display. When I use the adafruit libraries, all of the examples work although the refresh rate is terrible. In search of a better...

I just ported over a USB-powered FTDI+AVR project to a Teensy 3.1 and noticed many voltage sags during high loads on some motors and 12V lamps that I didn't see before. I am driving an 1970-era aviation electromechanical display with a 12V step-up converter. I recall reading that the FTDI...