ATtiny85 Piezo Timer: Clock Error, Pin Load and a Clean Stop
Use ATtiny85 hardware CTC to drive an exact passive piezo, calculate clock and rounding errors, bound pin current, and stop the output in a defined low state.
Unravel the Mystery of Electronics

Soldering required. Check the supplied parts and board revision.

Listing specifies 5-volt direct current. Soldering required; battery and glue not included.

Breadboard, wires and assorted parts. Arduino controller board not included.

Surface-mount soldering practice. Battery and battery holder not included.

Clock-and-case project kit. Soldering required; check included parts and power requirements.

Soldering and assembly required. Check battery and track requirements before buying.
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Use ATtiny85 hardware CTC to drive an exact passive piezo, calculate clock and rounding errors, bound pin current, and stop the output in a defined low state.
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Supplier product photo
Soldering required. Check the supplied parts and board revision.

Supplier product photo
Listing specifies 5-volt direct current. Soldering required; battery and glue not included.

Supplier product photo
Breadboard, wires and assorted parts. Arduino controller board not included.

Supplier product photo
Surface-mount soldering practice. Battery and battery holder not included.

Supplier product photo
Clock-and-case project kit. Soldering required; check included parts and power requirements.

Supplier product photo
Soldering and assembly required. Check battery and track requirements before buying.