How To Program An ATtiny84 With Your Arduino Uno

We will show you How To Program An ATtiny84 from an Arduino Uno. This is similar to a previous video we did programming an ATtiny 85. This IC has 11 input/output pins with 4 PWM pins to work with on your project.

These items are available on my Amazon page and also can be purchased at Digi-Keys for $2.04 ea. This is a very inexpensive way to automate your model railroad.

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What You Should Know Before Starting Your Model Railroad

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Disclaimers: all opinions are my own, sponsors are acknowledge. Affiliates are: Amazon, TubeBuddy, 1&1, & Magix GmbH

[jasonturnipseed]

Great video. Very informative and thorough.

[Mr.Tim.s_Tutoring]

what you think can we use the Raspberry Pi Pico to program ATtiny84?

[ravichandransrinivasan]

Do we need to load bootloader first- before loading the led sketch?

[MadLabZ]

Not bad for a train set guy =) all poking aside, thanks for the video, im very fluent on boot loading a bare attiny85 with micronucleus (zero delay bootup) and sketching out in arduino but i had a handful of the 84's collecting dust so its time to build a jig and boot the 84's!!! Thanks Mr.Tom =) subbed!!!

[chiranjayasanka]

i have a problem ''avrdude: Yikes! Invalid device signature.
Double check connections and try again, or use -F to override
this check.
'' why?

[johnalbu]

Is there a way to test newly purchased ATtiny84's before use?

[MMRails]

Still waiting for the video “How to program Arduino to not burn your toast”

[bobbybaldeagle]

I learned that I ain't got a clue to what your talking about... I'm pretty much computer dumb!!! I know how to turn mine on and off and how to find you tube face book and email after that I know nothing.... My kids say that at my age I know enough... :(

[Ed]

Very interesting. Sadly a single attiny84 is more expensive than an Arduino pro mini clone so using the 84 is like robbing yourself