Serial Communication - learn.sparkfun.com
WO2008001153A1 - Device and method for detecting a usb charger - Google Patents
USB Back Voltage
USB Dedicated Charging Port Controller and Power Switch. datasheet (Rev. A)
Protection of USB 2.0 Applications Series: ESD Device Tests and Layout Recommendations for USB Ports | Würth Elektronik: Electronic & Electromechanical Components > News > Blog: World of Electronics
USB 101: An Introduction to Universal Serial Bus 2.0
Switching in USB Consumer Applications | Analog Devices
USB-IF Compliance Updates
Measuring the Universal Serial Bus (USB)
USB-IF Compliance Updates
Switching in USB Consumer Applications | Analog Devices
USB-IF Compliance Updates
USB in a NutShell - Chapter 2 - Hardware
voltage - Why does USB have Vcc=5V and high=3.3V? - Electrical Engineering Stack Exchange
Verify USB port's supply voltage before use - EDN
![SOLVED] - USB data indicator on D+ D- bus from AVR | Forum for Electronics](https://lh6.googleusercontent.com/-B7r_aQHKm3E/UxlT75fx75I/AAAAAAAACZM/Kr2N9pXc5yc/s640/USB%2520connections.png "SOLVED] - USB data indicator on D+ D- bus from AVR | Forum for Electronics")
SOLVED] - USB data indicator on D+ D- bus from AVR | Forum for Electronics
Check level of USB powerbank of Arduino setting - General Electronics - Arduino Forum
USB Type-C and power delivery 101 – Ports and connections - Embedded.com
FAN3989 — USB/Charger Detection Device with Load Switch
Switching in USB Consumer Applications | Analog Devices
USB Drop
Agilent Technologies N5416A Automated USB 2 - ppt video online download
The Basics of USB-C and USB Power Delivery - ASME
ARM: USB Low-Speed Device on NXP LPC1800/4300 USB0 Host
USB hardware - Wikipedia
voltage - Why does USB have Vcc=5V and high=3.3V? - Electrical Engineering Stack Exchange
