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I installed 14.0 without thinking of possible consequences and sure enough couldn't get serial to work afterward. Searched the forum and found nothing about Sonoma. Turns out the USB cable I've been using for years decided to fail at the same time as the upgrade :( What's the chances of...

Arduino IDE 2.0.4 is out and a little better. Serial monitor is a little weird but almost usable. Still doesn't auto scroll window to the last new text line. The big advantage is being able to right-click or ctrl-click on some unknown text and select 'Go to Definition' and it will pop up the...

This is posted as a FYI for those who may encounter it. If the ethernet kit cable is plugged in backwards ethernet still works(somehow:eek:) but the led on the ethernet jack does not function. Apparently this upside-down connection for a few hours didn't wreck anything in my case. YRMV.

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Combined manitou48 gpsgpt.ino https://github.com/manitou48/teensy4/blob/master/gpsgpt.ino and Pauls FrequencyCount https://www.pjrc.com/teensy/td_libs_FreqCount.html To make a GPS assisted counter. Works from 1MHz to 58MHz within +/- 1 ppm even though my T4.1 is ~27ppm. Here's output of a...

With example programs: adc_dma, idc_timer_dma, adctimer_dma_oneshot and maybe others Same as posted here: https://forum.pjrc.com/threads/64432-Teensy-3-5-ADC_DMA-example-error?p=259233&viewfull=1#post259233 You get 'undefined reference to `AnalogBufferDMA::init(ADC*, signed char)' The master...

As title suggests playing wave files while displaying DemoSauce causes a crash when the '_twistyText' animation runs. On Mac, I'm using Arduino 1.8.13, TL1.54-beta7 with PJRC T4, 320x240 display and a T3 audio board painfully converted some year ago to work on T4. The example program...

Thought I was getting defective CR1220 button cell battery's. However, measuring RTC currents: T3.2 1.24uA T4.0 30uA Doesn't seem like much but with a 35mAH, 20mm dia. coin cell battery that's only 48 days vs 3 years. Still great for power failures but not so good for keeping time on...

I downloaded and printed this picture from this forum and found an error and would like to share but can't find where it came from. The error is the wire shown from Audio shield SCLK to Teensy4 pin 14 should be pin 13.

I don't understand how the CS pins work on the T4. On T3 there was one SPI bus but many CS pins to choose from for each peripheral. On T4 there are three SPI buses but only one CS pin for each. How do I achieve multiple peripherals on common MOSI/MISO pins?

FYI The SPI for the SD-card on the audio board running at 24MHz is intolerant of long signal lines on its bus. On a project using the Teensy 3.2, audio board and an I/O expander MCP23S08 a breadboard project (and subsequent PWBs) worked great. However, when the I/O expander was moved to its...

I'm having trouble getting TeensyduinoInstall.linuxarm to install on a Rasberrypi 2. Arduino 1.8.1 Runs fine (except no Teensyduino :( ) linux flavor ? How do I find? Installed a while ago. Desktop has a Debian help nemu but I think it's Raspbian from Adafruit. Put the 49-teensy.rules file...

This problem started similar to posts about the program loader not responding such as https://forum.pjrc.com/threads/40313-Power-restart-on-Teensy-3-6 and https://forum.pjrc.com/threads/37531-T_3-6-acting-oddly-Program-Button-doing-a-reset-no-bootloader-reprogram but has gotten worse. After...

Want to display battery cell voltages from an electric car to the cars LCD display something like below. The 112 cell voltages are read from the cars CAN_bus by a Teensy 3.2. and converted to graphs and additional statistical information. The car has a proprietary, closed, Windoz CE...

Accidentally posted in Project Guidance Homemade-motor-encoder-works-great-on-Mega-not-so-well-on-Teensy3-1

I have a motor encoder using a single magnet stuck axially on the end of a motor shaft with two properly located MLX92211 hall sensors reading the magfield change to make a very clean debounced quadrature signal. The Arduino mega version of my controller never looses the motor position. The...

Teensy 3.2 was interfaced to the OBD SWCAN port on a Chevy SparkEV to allow a backup camera to display on the cars MyLink dash display. For unknown reasons GM did not offer a backup camera on the 20114 and 2015 Chevy SparkEV even though Korean Spark models offer one. The SparkEV display unit...