ILI9341 Color TFT Display The best supported display for Teensy 3.2 ILI9341 320x240 Color TFT These displays are the best supported on Teensy 3.2, with multiple high The "Teensies" have also been used as a controller for existing keyboard matrices, such as, when a keyboard's protocol is deprecated and/or the keyboard has been cut down into a smaller matrix. int count = 0 ; void setup ( ) { } // no setup needed void loop ( ) { Keyboard . print ( "Hello World " ) ; Keyboard . println ( count ) ; count = count + 1 ; delay ( 5000 ) ; }

steps, ranging from 150 ohms (weakest) up to about 21 ohms (strongest). Adjustable Output Bandwidth Digital output bandwidth is also programmable, in 4 steps: 50, 100, The PJRC forum provides access to excellent technical advice that is far more advanced than found on the normal Arduino forums. It is the best place to find information on how to use the advanced features found in the Teensy. It is not the place to get basic Arduino type questions answered however, which is good as the forum is not cluttered with ‘how do I blink an LED?’ type questions. It also has a a nice selection of I/O that includes a 12-bit analog output. It is a great low cost choice for someone looking to to embed an MCU into a project that has medium performance and I/O requirements. The main downside for some projects is that it is not 5V tolerant. Getting Started with Teensy Install Arduino IDE Software Teensy 3.5 and 3.6 have a large number of pins, and are also pin-compatible with one-another. The Teensy 3.6 is not 5V-tolerant. Teensy-LC will be ideal for inexpensive "Internet Of Things" projects when paired with a ESP8266 Wifi module, which requires a fast hardware serial or SPI port.

defineLED_LAYOUT0 // 0 = even rows left->right, 1 = even rows right->left //TheportionofthevideoimagetoshowonthissetofLEDs.All4numbers //arepercentages,from0to100. If you need a Teensy with similar form factor and I/O that is 5V tolerant, the Teensy 3.2 may be a good choice to consider. Power – One Power Source at a Time! display to use, due to superior software support. ST7735 Color TFT These displays are slightly smaller and lower resolution than ILI9341. D7 pin is low due to pushbutton pressed digitalWrite( PIN_D6, LOW); // LED on delay(80); // Fast blink digitalWrite( PIN_D6, HIGH); // LED off delay(80); When using virtual cables, getCable can tell you which virtual cable (0 to 15) received this message.

And that’s the circuit complete. Simple, huh? If you’ve done some electronics before you may have expected that we would need a resistor between each button/switch and the microcontroller, however Teensy boards have built-in pullup resistors on each pin which means no external resistors are needed. This makes circuit building simpler, and is one of the lesser-known advantages of Teensy over Arduino. Step 4—Writing, Compiling and Testing Code Libraries updated: AccelStepper, ADC, Audio, FastLED, LedDisplay, RadioHead, ShiftPWM, Snooze, SPI, TouchScreen, Wireprogram loaded in Teensy's flash memory. Bootloader Chip Teensy LC's bootloader is stored in a dedicated chip. All pinMode INPUT_PULLUP should not be used with pin 13. Analog Pins Analog Inputs 21 pins can be used an analog inputs, for reading sensors or other an extra input for the cable number, from 0 to 15. See File > Examples > Teensy > USB_MIDI > Interface_3x3 All of this functionality is jammed into a 1.4 x 0.7 inch board with all headers on a 0.1 inch grid so you can slap it on a breadboard and get to work! This version of the Teensy has been streamlined to be as cost effective as possible. It is equipped with 8kb RAM, 62kb of flash memory, and 27 Digital I/O pins with 13 high res Analog inputs. To program the Teensy using the Arduino IDE, you must first have the IDE installed if it is not already. If it is installed but not the current version, now is a good time to update to the latest.

set this to the hardware serial port you wish to use #define HWSERIAL Serial1 void setup ( ) { Serial . begin ( 9600 ) ; HWSERIAL . begin ( 9600 ) ; } void loop ( ) { int incomingByte ; if ( Serial . available ( ) > 0 ) { incomingByte = Serial . read ( ) ; Serial . print ( "USB received: " ) ; Serial . println ( incomingByte , DEC ) ; HWSERIAL . print ( "USB received:" ) ; HWSERIAL . println ( incomingByte , DEC ) ; } if ( HWSERIAL . available ( ) > 0 ) { incomingByte = HWSERIAL . read ( ) ; Serial . print ( "UART received: " ) ; Serial . println ( incomingByte , DEC ) ; HWSERIAL . print ( "UART received:" ) ; HWSERIAL . println ( incomingByte , DEC ) ; } } Standard Serial Functions Permanent Secure Mode Brand new Teensy 4.1 can only run unencrypted programs. Once a key is writtenD7 pin is high due to pullup resistor digitalWrite( PIN_D6, LOW); // LED on delay(400); // Slow blink digitalWrite( PIN_D6, HIGH); // LED off delay(400);

We recommend use of Teensy 4.0 / 4.1 for new projects. We do not believe supply of chips for Teensy LC is likely to ever recover as these chips utilize older fabrication processes. AGND pin is meant only for the grounds from sensitive analog signals. Power Consumption (info here) Low Power Features (info here - Snooze library) VBAT A 3 volt coin cell may be connected to VBAT & GND to allow theAnalog signals are critically important to many projects. Teensy-LC has 13 pins than can function as analog inputs. The effective analog resolution is 12 bits. It also has a true 12 bit digital to analog converter, for an analog output signal.