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I've bought 2 ATtiny's from AliExpress and I can't program them. I've read some feedback and people say that they might be fake but then I saw some activity on IO pins. So I've made a small oscilloscope program on my Arduino:
On pin 2 there was a square wave signal and on pin 7 there was a signal, fading in and out.
my question is that the microcontroller is original or not and also I want to know how can I unlock the MCU, if it's locked?
Sorry if my English is bad.
When I try to program it it says avrdude:
Yikes! Invalid device signature. Double check connections and try again, or use -F to override this check. I used Arduino as IDE. The error shows up in ArduinoIDE.
There's a 10uF capacitor between Arduino's reset and Ground