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--- projects:usb-c-ify [2025/11/19 20:36] – [USB-C cables] admin
+++ projects:usb-c-ify [2025/11/19 22:51] (current) – [USB-C device roles] admin
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 ====== USB-C-ifying ======
-Having several different chargers for devices is tedious. Read about how to convert nearly everything into USB-C. \\
+Having several different cables and chargers for devices is tedious. Read about how to convert nearly everything into USB-C. \\
 It can be done two ways: \\
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 ==== TODO ====
+https://pcbartists.com/design/embedded/how-to-replace-microusb-with-usb-c-connector/ \\
+ In connectors that do not expose the CC1 and CC2 pins, they are simply connected internally to make things easy for you.
 USB-PD (65W) fast charger buck boards \\
 Bidirectional power bank modules: e.g. IP2369, read [[:projects:drill-powerbank-pd|DIY drill power bank]] \\
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 Read the [[https://hackaday.com/2016/04/22/hackaday-dictionary-usb-type-c/|hackaday.com USB-C dictionary]] \\
-Depending on device type there might be direct audio output on USB-C socket, which let's you use a passive adapter - unlike [[https://www.ifixit.com/News/8448/apple-audio-adapter-teardown|Apple lightning active audio adapter]] and [[https://www.zmescience.com/science/news-science/x-rays-usb-c-cables/|Apple's USB-C cable]]. \\
+Depending on device type there might be direct audio output on USB-C socket, which let's you use a passive adapter - unlike [[https://www.ifixit.com/News/8448/apple-audio-adapter-teardown|Apple lightning active audio adapter]] and [[https://www.zmescience.com/science/news-science/x-rays-usb-c-cables/|Apple's USB-C cable]]. If you want to build your own active USB-C audio cable, read [[https://daumemo.com/diy-micro-usb-c-to-3-5mm-adapter-and-headphone-amplifier-part-4/]]. \\
 USB-C cables are not necessarily passive. There might be so called e-marker chips connected to the CC-pins. \\
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 ====== USB-C device roles ======
+Read [[https://www.wandkey.com/usb-c-pinout-guide-and-features/]] for more info. \\
 USB-C devices have different roles: \\
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-USB-C power roles are configured with CC-pin resistor values inside the devices: \\
+USB-C power roles are configured with CC-pin resistor values inside the devices - CC-pins MUST be connected. \\
+In connectors that do not expose the CC1 and CC2 pins, they are simply connected internally to make things easy for you. \\
+Selecting Sink or Source via the USB-C CC pins is conceptually equivalent to the micro-USB ID pin (4), which sets the OTG role by making the device act as the Source/Host (DFP) when the ID pin is grounded. \\
 ^ Name ^ Value ^ Used By ^ Meaning ^