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Perfect. Thanks much.

Been all over the Internet. No proposed solution worked. #include <Arduino.h> volatile bool led_state = false; #define LED_PIN 13 /////////////////////////////////////////////////////////////////// void timerISR() { led_state = !led_state; // Toggle the LED state...

Installd beta version of Teensy dunno. Works fine.

Installed latest Teensyduino beta. Fixed it.

Will do that next time, thanks. M4 MAC Powerbook. Runs IDE 1.8x just fine, problem is with 2.x Yes, those two versions. Reinstalled each twice.

Sometimes I get this: /Users/loren/Library/Arduino15/packages/teensy/tools/teensy-compile/11.3.1/arm/bin/arm-none-eabi-gcc -O2 -Wl,--gc-sections,--relax -T/Users/loren/Library/Arduino15/packages/teensy/hardware/avr/1.59.0/cores/teensy4/imxrt1062_t41.ld -mthumb -mcpu=cortex-m7 -mfloat-abi=hard...

Tried a lot of options, reinstalled the IDE and Teensyduino, Latest versions of everything, cleared the arduino cache. No matter what I do I get this: void setup() { Serial.begin(9600); Serial.printf ("start\n"); } void loop() { Serial.printf ("run\n"); }...

We have been building art cars (mutant vehicles) for Burning Man for many years. Our current one is based on a solar electrified Worksman side-by-side tricycle. For night driving it is illuminated by 22 pairs of NeoPixel (WS2812) strips for a total of ~6400 RGB LEDs. The strips are in pairs...

Spoke too soon. Macbook doesn't see them on any port. "No Teensy boards were found on any USB ports of your computer."

Program button gets the bootloader LED to flash and flicker for a bit. Curious how I might have clobbered the USB state. At least now I can do more than 5 experiments. :-)

---------------------------------------- Sketch only, no pins, just a timing test. Worked perfectly. Recoverd both of them. Thanks much.

Not sure where to post this. This sketch bricked two brand new T4s. #define MIN_LAG 1 #define MAX_LAG 21 #define N_LAGS (MAX_LAG-MIN_LAG+1) #define NBUFFERS 7 #define S(a) ((long)(((a)-RawBufferPtr)/16)) float RawBuffer[16*1000*NBUFFERS]; float *RawBufferPtr = RawBuffer; float...

Thank you. That's exactly what I wanted.

I do a lot of bit banging and I'd like to see the PORTx / pin map for the 3.5/3.6 devices. The map for the 3.1/3.2 devices has been real handy.

Wahoo! Thanks a bunch. Just verified it. p.s. Teensy 3.1 @ 96 MHz. Loren

Zeroing the buffers when I release them and still I get -1. Checked all the solder connections. The ground lines are all tied, so that's not it. Is there some API setting I'm missing.

Thanks for the info.

Both use SDA & SCL. Is there a proper way to use both?

Feeding a 1V pp 1 KHz square wave into LineIn. All I get is -1. Any ideas? ----------------------------------------------------------------------------------------- #include <Audio.h> #include <Wire.h> #include <SPI.h> #include <SD.h> #include <SerialFlash.h> AudioInputI2S i2s2...

Hi, I've used Teensy 2's & 3's with a number of LED projects, but now I'm investigating using one for a 4-channel 44.1 kHz data logger. It seems the capability of 4 channel input is now available, so I presume that requires 2 audio boards. Also I would like to record several days of data, so...