Hi there,
I ordered from ALiExpress 5pcs of ATTiny85-20PU and none of them are working.
Error message apears while recognising the MCUs ID: Invalid device signature 0xffffff
I got this message from avrdude using USBtiny programmer (CMD output).
Just to mention, there are no wires, cables or breadboard laying around.
And I tested my old MCU and it's working fine.
p.s. And sorry for the wrong title!
I ordered from ALiExpress 5pcs of ATTiny85-20PU and none of them are working.
Error message apears while recognising the MCUs ID: Invalid device signature 0xffffff
I got this message from avrdude using USBtiny programmer (CMD output).
Code:
avrdude -c usbtiny -p t85 -F
avrdude: AVR device initialized and ready to accept instructions
Reading | ################################################## | 100% 0.02s
avrdude: Device signature = 0xffffff (retrying)
Reading | ################################################## | 100% 0.02s
avrdude: Device signature = 0xffffff (retrying)
Reading | ################################################## | 100% 0.02s
avrdude: Device signature = 0xffffff
avrdude: Yikes! Invalid device signature.
avrdude: Expected signature for ATtiny85 is 1E 93 0B
avrdude: safemode: Fuses OK (E:FF, H:DF, L:62)
avrdude done. Thank you.
And I tested my old MCU and it's working fine.
p.s. And sorry for the wrong title!