![All of my Arduino Uno not recognized in PC after using external power supply - IDE 1.x - Arduino Forum All of my Arduino Uno not recognized in PC after using external power supply - IDE 1.x - Arduino Forum](https://europe1.discourse-cdn.com/arduino/optimized/4X/c/5/8/c58f728ef6f630cbdbbbfa0c4a1ab04ed4d9f31f_2_1023x513.jpeg)
All of my Arduino Uno not recognized in PC after using external power supply - IDE 1.x - Arduino Forum
![Amazon.com: 10Gtek 3.3v 5v Power Supply Adapter for MB102 Prototype breadboard DC 6.5-12V or USB Power Supply Module, for Arduino breadboard : Electronics Amazon.com: 10Gtek 3.3v 5v Power Supply Adapter for MB102 Prototype breadboard DC 6.5-12V or USB Power Supply Module, for Arduino breadboard : Electronics](https://m.media-amazon.com/images/I/41G6LfonTUL._AC_UF1000,1000_QL80_.jpg)
Amazon.com: 10Gtek 3.3v 5v Power Supply Adapter for MB102 Prototype breadboard DC 6.5-12V or USB Power Supply Module, for Arduino breadboard : Electronics
![USB Power Port Ready retractable USB charge USB cable wired specifically for the Arduino YUN and uses TipExchange USB Power Port Ready retractable USB charge USB cable wired specifically for the Arduino YUN and uses TipExchange](https://p9.secure.hostingprod.com/@site.gomadic.com/ssl/imgs-prod/usb/arduino-yun-retractable-usb-cable.jpg)
USB Power Port Ready retractable USB charge USB cable wired specifically for the Arduino YUN and uses TipExchange
![Breadboard Power Supply 3.3V and 5V with Micro USB Connector and FT232RL Chip for Arduino | Sandbox Electronics Breadboard Power Supply 3.3V and 5V with Micro USB Connector and FT232RL Chip for Arduino | Sandbox Electronics](https://sandboxelectronics.com/wp-content/uploads/2014/10/ADA-000025.in_application.jpg)
Breadboard Power Supply 3.3V and 5V with Micro USB Connector and FT232RL Chip for Arduino | Sandbox Electronics
![Amazon.com: ALMOCN 6PCS 3.3V 5V MB102 Breadboard Power Supply Module DC 6.5-12V USB for Arduino Solderless Bread Board : Electronics Amazon.com: ALMOCN 6PCS 3.3V 5V MB102 Breadboard Power Supply Module DC 6.5-12V USB for Arduino Solderless Bread Board : Electronics](https://m.media-amazon.com/images/I/71gj-Tr6eQL._AC_UF894,1000_QL80_.jpg)