Device signature = 0x00ff00

Development Tools Uploading
1

Hello there,
Old problem but couldn't find the solution, hope for HELP.
Trying to program a ATtiny2313A using an:
iMac with OS12.7
Arduino UNO (Clone)
ArduinoIDE 2.3.4
Have added "http://drazzy.com/package_drazzy.com_index.json" to the additional boards manager URLs in the Arduino preferences.
Did the following steps:
Loaded the sketch ArduinoISP to the Arduino UNO
Unplugged the wiring
Made the following wiring between
Arduino. ATtiny2313A
5V. pin 20
GND. pin 10
pin 13. pin 19
pin 12. pin 18
pin 11 pin 17
pin 10. pin 1
Added a 10KΩ resistor on the ATtiny between Vcc end pin 1
Added a ,01µF capacitor on the ATtiny between Vcc and GND
Added a 10µF capacitor on the Arduino between Reset and GND
Loaded the sketch Blink
To upload the sketch I choose
Tools
Board: ATTinyCore: "ATtiny2313(a)/4313 (No bootloader)"
Port: "dev/cu.usbmodem14201"
B.O.D. Level (Only set on Bootload): "B.O.D. Disabled (saves power)"
Chip: "ATtiny2313/ATtiny2313A"
Clock Source (Only set on Bootload): "1MHz (internal)"
Save EEPROM: "EEPROM retained"
Initialize secondary timers: "no"
LTO (1.6.11+ only): "Disabled"
millis()/micros(): "Disabled"
tinyNeoPixel port: "Port A (pins 2,3,17)"
Programmer: "Arduino as ISP"

Sketch
Upload Using Programmer

This is the result

avrdude: Device signature = 0x00ff00
avrdude: Expected signature for ATtiny2313a is 1E 91 0A
Double check chip, or use -F to override this check.

I have checked the wiring several times.
There are no other component connected.
The ATtiny2313A is new and I tried a second one as well.

I would be very grateful for any help.
Thank you in advance.

RonRocker

2

I once bought a bunch of different type ATtiny's and had similar issues.
Long story short: the whole strip of supposedly new chips was filled with used chips that were locked and set to use external crystal. The solution was to make a high voltage fuse resetter. After resetting the fuses to default values all chips had proper signature and could be programmed again.

At another occasion I received a strip of 10 supposedly ATtiny44A chips that proved to be fakes. At closer inspection I saw that the original top was filed off (and not even level) and the fake markings were lasered into the filed top. I published a video on my YouTube channel about these fakes...

3

Thanx for your quick answer.
Will definitely dive into it.