Updated Guide On How To Program An Attiny13 Or 13a With The Arduino IDE
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instructables Updated Guide on How to Program an Attiny13 or 13a With the Arduino IDE by NotoriousRapper2Chainz The ATtiny13 series chips are extremely cheap and useful chips for small projects that don't need a full Arduino, but due to very outdated tutorials and a lack of information, it took me the better part of a day to figure out how to program these with the Arduino IDE. To fix this lack of information, in this Instructable, I will show you how to program your ATtiny13 or ATtiny13a with an up to date version of the Arduino IDE. Updated Guide on How to Program an Attiny13 or 13a With the Arduino IDE: Page 1 Step 1: The Hardware You Need Required Hardware • Arduino (Uno is the easiest, but any Arduino will work) • ATtiny13 or 13a • Breadboard • Jumper Wires Troubleshooting Hardware (not necessarily required) • 10uf electrolytic capacitor • Any large electrolytic capacitor (mine is 1000uf, but any capacitance 100uf and above will work best) Step 2: Setting Up the Hardware Connect the pins of the Arduino to the ATtiny as shown in the image or table below. GND------------------------Pin 4 Pin 13-----------------------Pin 7 Important Note:Make sure to orient your ATtiny such that the indicator dot on your chip is in the bottom left corner as shown in the images (across from the 5v line). Orienting your ATtiny the opposite way can hurt the chip. Pin 12-----------------------Pin 6 Pin 11-----------------------Pin 5 Pin 10-----------------------Pin 1 Arduino____________ATtiny13(a) 5v----------------------------Pin 8 Updated Guide on How to Program an Attiny13 or 13a With the Arduino IDE: Page 2 Updated Guide on How to Program an Attiny13 or 13a With the Arduino IDE: Page 3 Updated Guide on How to Program an Attiny13 or 13a With the Arduino IDE: Page 4 Step 3: Setting Up the Arduino As ISP Navigate to Files-Examples-ArduinoISP and click on ArduinoISP. Upload this sketch to your Arduino. Now your Arduino is set up as a programmer for programming other chips. Step 4: Downloading the Attiny13(a) Core Files To program the ATtiny13 or 13a, you will need to install the core files. For this we will be using the core files created by sleepmanj, which I find to be the easiest to install and the best to use. To install these files, open your Arduino IDE and navigate to the files drop-down menu, then select preferences. Paste this URL "https://raw.githubusercontent.com/sleemanj/optiboot/ master/dists/package_gogo_diy_attiny_index.json" where it says "Additional Boards Manager URLs:". If you already have a URL here and want to add more, separate the URLs with a comma and a space. Now navigate to tools-board and click on Boards Manager.... Now scroll down until you see DIY ATtiny and click the install button (it will default to the newest version). Updated Guide on How to Program an Attiny13 or 13a With the Arduino IDE: Page 5 Step 5: Burning the Bootloader to the Attiny Go to Tools-Board and select ATtiny13. After selecting ATtiny13, navigate to Tools-Processor Version and select either ATtiny13 or ATtiny13a depending on your chip. Do not change any other settings until you know what they do, they can mess up what you are trying to accomplish. Finally, click the Burn Bootloader button at the bottom of the tools drop-down menu. Updated Guide on How to Program an Attiny13 or 13a With the Arduino IDE: Page 6 Step 6: Programming the Chip You're at the homestretch! To make sure everything is working, let's upload the blink sketch to the ATtiny. Navigate to Files-Examples-Basics and select Blink. There are a few changes we will need to make though. In the program, change every instance of "LED_BUILTIN" to "4" because our ATtiny doesn't have a built in LED. This "4" corresponds to pin 3 of the ATtiny (This can get confusing, you can reference what number in the IDE corresponds to what pin on the diagram in the "Troubleshooting" step. Now you can upload this code to your ATtiny through your Arduino by clicking the upload button. To test to see if it worked, connect an LED (along with an appropriate resistor) between pin 3 on the ATtiny and ground as shown in the diagram and image above. The LED should be blinking on and off. If it is, congratulations! You now know how to program an ATtiny13 or 13a! You can now disconnect all wires except the 5v and ground. If your LED isn't blinking, don't worry, proceed to the troubleshooting step to fix your problems. Updated Guide on How to Program an Attiny13 or 13a With the Arduino IDE: Page 7 Updated Guide on How to Program an Attiny13 or 13a With the Arduino IDE: Page 8 Step 7: Troubleshooting Something always goes wrong when working with new things, that's ok! Let's try to fix these issues. Try these in the order they show up. • Double check all of your connections and your orientation of the ATtiny and LED. • Re-upload the ArduinoISP sketch to your Arduino. • Connect a 10uf electrolytic capacitor between ground and reset on your Arduino. Make sure to plug in the capacitor in the correct orientation, negative goes to ground. • Connect any large capacitor between the 5v and ground on the breadboard, this will help smooth out any voltage spikes. • Make sure enough power is getting to the Arduino that is programming the ATtiny, a 9 volt battery might not work. • Switch out your Arduino with a different Arduino • Make sure you're using an up to date IDE and up to date core files • Click on tools and make sure the drop down menu looks the same as the menu shown in the "Burn the Bootloader" step. If something is different, change it and re-burn the bootloader. Step 8: Great Job! Congratulations on programming your ATtiny and thanks for reading my Instructable! Updated Guide on How to Program an Attiny13 or 13a With the Arduino IDE: Page 9
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