3V 20mm Lithium Ion Coin Cell CR2025 51E It has an Atmel ATtiny85

It has an Atmel ATtiny85 processor running at 16

solder the wires and re-screw it

Model 100W 400 ohm + 400ohm Material Type Silicone coated Type Variable double Rotary Potentiometer  Tolerance 10% Power 100W Resistance 400 Ohm + 400 ohm Dimensions 160

This kit will help you control the physical world with sensors

3V 20mm Lithium Ion Coin Cell CR2025 51E It has an Atmel ATtiny85The operating voltage of Lithium Ion coin cell battery is 3V and is the most popular coin cell in use right now. Lithium is found in Panasonic coin cell batteries. For equipment that needs a reasonably high current, the CR series, with its high energy density, is the best choice. They are ideal for tiny, low power devices since they are both small and light. Although they have a high internal resistance and cannot be recharged, this property makes