Arduino UNO (DIP) ATMega328P Rechargeable The Synergy CR1620 Lithium Coin

The Synergy CR1620 Lithium Coin Cell is a high-capacity replacement battery that's commonly found in calculators

2% AC Current 20-200-400A，±2

It is especially useful for detecting very small particles

Non-Inverting Input of Op-Amp 1

Fit for 22mm (7/8 Inch) hole and secure it with screw ring

Arduino UNO (DIP) ATMega328P Rechargeable The Synergy CR1620 Lithium CoinArduino Uno is a microcontroller board based on the ATmega328P. It has 14 digital input output pins, 6 Analog inputs, a 16 MHz quartz crystal, a USB connection, a power jack, an ICSP header, and a reset button. It contains everything needed to support the microcontroller that simply connects it to a computer with a USB cable or power it with an AC to DC adapter or battery to get started. The Arduino Uno is the successor to the Arduino which is a