4.1 pads unlabeled 7.84 44.1 khz 44.117khz 1280 x 400 adc adc; 1 msps; datalogger adc pedvide audio audio lib oscillator audio noise guitar beginner bldc bldc controller cli clock cn0391 teensy3.6 spi dma ethernet flexpwm footprint frank-b freqmeasure frequency gps guitar effects teensy host port i2c touchscreen max7219 7-segment midi midi out midi sampling octows2811 oled i2c teensy4 paulstoffregen pcm1808 pedal power psram pwm ra8875 jumpers 8080 spi raspberry sd card serial serial port snooze solved spi synthesizer synth matrix midi t4.1 teensy teensy 3.2 teensy 3.6 teensy 3.6 gpio ports teensy 3.6 usb host teensy4 dma spi teensy 4.0 teensy 4.0 ili9341 ra8875 teensy 4.1 teensy 4.x teensy emulator midi vga teensy mpu6050 i2c teensy rtc timelib time syncing timing touchscreenusb x y tsr usbhost_t36 windows10iot