How to design a proper USB-C™ power sink (hint, not the way Raspberry Pi 4 did it) | by Benson Leung | Medium
All About USB-C: Resistors And Emarkers | Hackaday
ftdi - USB hub and slave on same pcb - are serial resistors and capacitors needed? - Electrical Engineering Stack Exchange
stm32 - Interfacing USB with a microcontroller - Electrical Engineering Stack Exchange
USB in a NutShell - Chapter 2 - Hardware
ftdi - What is the purpose of capacitors and resistors in this USB bus? - Electrical Engineering Stack Exchange
Industrial IoT Applications - External Sensors + Charging W/ Android USB Aka Micro USB Host OTG Y-Cable W/ Power : 8 Steps - Instructables
The Dirty Truth about USB device Charging – Curious System Solutions
15w Dc 3v-21v Electronic Test Load Resistor Usb Interface Battery Discharge Capacity Tester With Fan Adjustable Current Module - Integrated Circuits - AliExpress
usb charging circuit - CircuitLab
USB Discharge Load Resistance Power Resistors Mobile Power 2A/1A Testing Aging Resistor Module 2A Red 1A Green Led|power module|usb modulemodule power - AliExpress
USB charging without fear
USB ESD protection problem and improved USB detect circuit for battery powered devices – PICONOMIX
AN0046: USB Hardware Design Guidelines
All About USB-C: Resistors And Emarkers | Hackaday
To what voltage should the D+ line be pulled up when designing USB connection in STM32? +5V or +3.3V? All documentation and dev board scematics says it's 3.3V, but it didn't work.
Do I need a pull-up resistor for this USB ? : r/AskElectronics
USB-C Power Delivery (USB-C PD) – Quick Explainer - Codrey Electronics
Why "drive USB pull-up resistor to '0' to disable USB"? - Troubleshooting Help - TinyFPGA
USB circuit design for STM32
AN11392 Guidelines for full-speed USB on NXP's LPC microcontrollers
simple USB circuit
STM32F103 USB circuit
