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ATtiny85 is small, low-power 8-bit, 8-pin RISC microcontroller from Microchip.

2 votes
Accepted

ATTINY85 variants

That's the date code. "1822" is a misread since that date is in the future. You can get around this by unprogramming the CKDIV8 fuse which comes programmed from the factory.
Ignacio Vazquez-Abrams's user avatar
12 votes

Workaround for the obsolete ATTINY15 1.5Mhz clock for FCC exemption?

The RC oscillator of the ATtiny26L can be programmed to run at 1.0, 2.0, 4.0, or 8.0MHz directly without running through a prescaler. Its PLL will still perform a 64x though, so make sure it is disabl …
Ignacio Vazquez-Abrams's user avatar
1 vote

What happens to 2 INPUT_PULLUP linked together?

Then your pulldown will need to be strong enough to sink both pullups. If your pulldown is a direct connection to ground then you should have no strength issues. The distance might be an issue, but te …
Ignacio Vazquez-Abrams's user avatar