9/4/2023 0 Comments Arduino leonardo handbrakeAbout HandBrake What HandBrake is, does, and does not.Quick start Learn how to make your first video in minutes.Example:Picture 2 is Pin configuration for ATtiny84 from the High-Low Tech Core and picture 3, from Arduino-Tiny Core. Important, also: Cores use different pin configuration, you have to refer to their documentation when writing a sketch. In that case use Burn bootloader before you upload a sketch. Important: Some chips have to be bootloaded when using the Arduino-Tiny Core. 6- Use Upload using programmer from the File menu. 5- Select Arduino as ISP (Leonardo) in Programmer. In my case, using the High-Low Tech Core, I am selecting Attiny84 (internal 8Mhz clock). REMEMBER: the RESET pin for the Leonardo is digital pin 10 3- Open a sketch 4-Choose the corresponding board. 2- Plug wires between (RX,TX, if available) MISO, MOSI, SCK,RESET, 5V and GND of the ATtiny (search for pinout from the Atmel datasheet) and your Arduino Leonardo. 1- Install the software support for the Arduino IDE from the core you chose. These instructions are not only for the ATiny84, they should work for Attiny45, Attiny85, Attiny44 and Attiny84 using the High-Low Tech Core, and for ATtiny84 (84/44/24), ATtiny85 (85/45/25), and ATtiny2313 (4313) using the Arduino-Tiny Core, but finally, the process is the same. Upload a sketch 1- Do not move your connections 2- Choose a sketch (look at picture 1, Arduino pin configuration in red) 3- Use Upload using programmer from the File menu, Done! (picture 9-classic blink) If you receive an error message, check your connections one by one and repeat the process. ******************Additional step finish here****************** 1- Check the connections again 2- Select your board: Atmega328 with external 16mhz crystal -> Arduino Duemilanove w/ATmega328 Atmega minimal circuit without external crystal -> ATmega328 on a breadboard (8 MHz internal clock) 3- The Serial Port should be the same as Arduino Leonardo 4- Select Arduino as ISP (Leonardo) in Programmer 5- Select Burn Bootloader at Tools Menu 6- If you get this message: Done burning bootloader, Success! (see pictures 6 and 8) If you receive an error message, check your connections one by one and repeat the process. 5-You should see "ATmega328 on a breadboard (8 MHz internal clock)" in the Tools > Board menu. 3-Move the "breadboard" folder from the zip archive to the "hardware" sub-folder of your Arduino sketchbook. If you've previously installed support for additional hardware configuration, you may already have a "hardware" folder in your sketchbook. Refer to pictures 3 and 4 for the final result Burning Bootloader (if you bought the Bareduino or you are using a bootloaded Atmega328 skip this step) *********IMPORTANT: additional step for Minimal circuit configuration********* 1- Go to and download the Breadboard.zip 2- Create a "hardware" sub-folder in your Arduino sketchbook folder (whose location you can find in the Arduino preferences dialog). Now, on your Arduino IDE folder: 1- Create a new folder in "hardware" with the name of leofix 2- Open a text editor and paste this code (picture 2): arduinoispleo.name=Arduino as ISP (Leonardo) munication=serial arduinoispleo.protocol=arduino arduinoispleo.speed=19200 Save the file as programmers.txt (see picture 3) Next we connect some wires to our Leonardo (picture 4): Digital Pin 10,1(TX),0(RX) ICSP MISO,5V,SCK,MOSI,GND (see 6pin pinout on picture 5)įor external 16Mhz crystal and Minimal circuit configuration: 1- Connect the wires from the Leonardo to the atmega328 (please take a look to atmega328 pinouts these are the same with atmega168 -picture 1): Atmega328 Arduino Leonardo (in the picture 1 pins on black) (picture 2- 6pin ICSP) RX pin 2-digital pin 0 TX pin 3-digital pin 1 MISO pin 18-ICSP pin MISO MOSI pin 17-ICSP pin MOSI SCK pin 19-ICSP pin SCK RESET pin1-digital pin 10 And power pins 5v and ground. 1- Open Arduino IDE 2- Open the ArduinoISP sketch (File/Examples/ArduinoISP) 3- Change the following lines (see picture 1): #define RESET SS TO #define RESET 10 #define LED_HB 9 TO #define LED_HB 13 ( we want to use digital pin 10 to reset the target and we are setting the heart beating led on pin 13) 4- Save the sketch as LeonardoISP (so you can use it later) 5- We choose Arduino Leonardo (Tools/Boards/Arduino Leonardo) and the appropriate Serial Port (Tools/Serial Port/COM **) 5- Upload If the sketch was uploaded correctly, you will see the on-board led (the one marked as L) doing a heartbeat sequence. I am assuming that you have already installed and configured the IDE, and you've been able to upload sketches before (If you don't : ).
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