FAQ

Arduino IDE

• Where are my hex files

Audio

• Audio WAV Files

Compiling and toolchains

• How to change the used compiler
• Why do the list files for my T4 look so weird
• Where do I find older versions of Teensyduino

SD Cards

• SD Shields
• Built in SD card-T3_5 and T3_6
• Built in SD card-T4.0
• SD Card does not work as expected

USB Serial Communication

• My Teensy won't communicate via USB-Serial
• My Teensy doesn't show up as serial device
• Printing floats with printf doesn't work on my TeensyLC
• Windows screwed up my ports

Uploading Firmware

• Is there a command line uploader
• How do I upload firmware over the air
• Can I upload firmware from within my PC application
• Can I read the firmware back from a Teensy -> No!
• Why do I need to press the program button to upload

Reset

• Reset

Miscellaneous

• How can I read the serial number from code

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