Rookie question? Replace CR2032 battery with 3V AA power supply
Virtalähde 3V - 12V DC
2Pcs 2 x 3V AA Battery Holder Enclosed Case Box On-Off Switch 160mm Leads Black | eBay
Amazon.com: 2in1 5V USB To 3V Dual LR6 LR03 Battery Power Supply Cable Replace 2x 1.5V AA AAA Battery Eliminator for LED Light Toys Luminara Candles Walkie Talkie and More,USB AA Battery
DC-HAKKURI VIRTALÄHDE 3,3V 2,5A 8W - PARTCO
2IN1 USB POWER Supply Cable USB to 3V AA LR6 Battery for LED Light Clock $11.62 - PicClick AU
Power Supply 3V AA Battery Eliminators Cable for Toy Controllers Battery Cable C1FD
Amazon.com: 2in1 5V USB To 3V Dual LR6 LR03 Battery Power Supply Cable Replace 2x 1.5V AA AAA Battery Eliminator for LED Light Toys Luminara Candles Walkie Talkie and More,USB AA Battery
Virtalähde 3V - 12V DC
SparkFun Breadboard Power Supply 5V/3.3V - PRT-00114 - SparkFun Electronics
5v To 3 3v
Power Supply 3V AA Eliminators Cable for Toy Controllers Cable 40GE - AliExpress