Attiny 85 securing the code

Using Arduino Programming Questions
1

Hi,
is there any way to lock up the code in attiny so it cannot be easily extracted from the chip once programmed?
thanks

2

Is your code really that clever and unique that any skilled programmer couldn't duplicate it anyway?

2 Likes
3

Study the ATtiny85 data sheet, section 20 (Memory Programming), to learn how to set the lock bits.

This won't deter a very determined person from extracting your ingenious code, but it does make it more difficult. Of course, they have to have the chip in hand to do it.

1 Like
4

I am just wondering if this is possible.
thanks

5

I will check it out.
thank you.

6

I'M POSTING ANSWER TO MY QUESTION:

In fact, the WS2811 is not an RGB led, but rather a led controller manufactured by WorldSemi. This controller has three channels which enables you to transform any classic RGB led into a "Smart-led" which you can daisy-chain with others. Daisy-chaining is performed in a classic way by connecting the output line of each controller to the input of the next controller.

reference:
RGB led: Adding WS2811 support (yoctopuce.com)

7

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