If this all seems a bit too good to be true, know that there are some drawbacks to be aware of. Each dongle is promised to be tested before being shipped to customers. There’s currently a few weeks of lead time to get your hands on one, due to popularity. More importantly, the “USB C Power/Data Splitter” is now available for purchase for $15. He also went the extra mile to 3D print a phone dock to keep the phone secure. Koripalli had the dongle produced and integrated it in his own car by temporarily removing various panels to protect the dongle and hide the extra wiring. On the other side is a single USB-C port, where you’ll run the third cable from the splitter to your phone.Īt first, this sounds like a bit of a mess, but it doesn’t have to be. On one side, a USB-C cable connects between the dongle and a USB-PD car charger and a micro-USB cable connects the dongle to your car’s Android Auto port. To use the dongle, you’d use three cables. With this knowledge, Koripalli designed a simple dongle that separates the USB-C connection from your phone into a USB-C port for charging and a micro-USB port for Android Auto usage. With a USB-C connection, Android Auto works using only the data-related pins, while USB-PD uses its own dedicated lines for your phone and charger to choose the best rate at which to charge. In fact, it’s quite possible your battery percentage may be lower after a trip with Android Auto rather than higher.Īs shared on the Android Auto subreddit, engineer Rohan Koripalli looked into the ways that USB-PD (power delivery) charging and Android Auto interact or, more specifically, how they don’t. Generally speaking, cars that offer wired Android Auto only offer a very limited amount of power, and while phones have become more power efficient over time, this isn’t enough for your phone to actually charge at a noticeable rate. Now, one person has come up with a clever way to bring fast charging to essentially any Android Auto user. Android Auto is great for getting maps and music running in your car, but the vast majority of vehicles that support it also limit users to slow charging speeds.
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