Adafruit USB A Jack to 5.5/2.1mm DC Jack Adapter - 988 ac dc Button (Color: Red/Black) x20

Button (Color: Red/Black) x20

and Gesture Sensor - STEMMA QT / Qwiic gesture sensor with I2C STEMMA QT connector

Best suited for battery level display

Raspberry Pi Expansion Board on board resource

and simple controller systems that need analog pH data

Adafruit USB A Jack to 5.5/2.1mm DC Jack Adapter - 988 ac dc Button (Color: Red/Black) x20This little dongle will let you connect one of our 5V 2Amp or 5V 10Amp adapters to something that expects to connect to USB. The premise is simple one end has a USB A female jack and the other has a 'standard' 5. 5mm OD 2. 1mm ID barrel jack with center positive polarity. It does not have any resistors or other connections inside for the data lines so this won't work for charging an iPhone, iPod or iPad or other device which expects some sort of