# Adafruit USB Type C Power Delivery Switchable Breakout ## Overview ![](https://cdn-learn.adafruit.com/assets/assets/000/131/481/medium800thumb/adafruit_products_5991-07.jpg?1721759700) The HUSB238 USB PD sink chip is neat in that you can either use switches (really, resistor selection) to set the desired PD voltage _or_ use I2C for dynamic querying and setting. We already stock a simple **[Adafruit USB Type C Power Delivery Dummy Breakout](https://www.adafruit.com/product/5807)** board around the HUSB238, but that one requires soldering closed jumpers to select the voltage. For folks who want a no-soldering-required board, this **Adafruit USB Type C Power Delivery Dummy - I2C or Switchable** is ready for instant gratification. No soldering required! ![](https://cdn-learn.adafruit.com/assets/assets/000/131/482/medium800/adafruit_products_5991-05.jpg?1721759845) Compared to the basic **[Adafruit USB Type C Power Delivery Dummy Breakout](https://www.adafruit.com/product/5807)** we've done a renovation to keep the same great schematic and also add some oft-requested features: - **No soldering required!** Switches allow on-the-fly voltage changes. Terminal block can be used to provide power to your robot, display, LEDs, etc. - **Green LED** output lets you know that the terminal block power is on - can be disabled if you prefer - **Stemma QT for I2C control** plug-and-play with Qwiic/QT - **USB Data lines** available on solderable pads - **On/Off switch** - you can disconnect the internal pass FET by connecting a switch between two onboard pads. When the switch is _closed_ the output will disconnect / turn off. - We use the **HUSB328 PDL003A E-Marker variant** of the chip, a little more expensive, but it can request 5A power. ![](https://cdn-learn.adafruit.com/assets/assets/000/131/483/medium800/adafruit_products_5991-01.jpg?1721759899) It's perfect for USB Type C wall adapters providing multiple voltages. The standard offerings are 5V, 9V, 12V, 15V, 18V, and 20V. This HUSB238 breakout plugs into the USB C cable and negotiates the PD request and commands over the CC lines. For example, we can ask what voltages are available and pick the highest. Or if you need a specific voltage, it will select that one. ![](https://cdn-learn.adafruit.com/assets/assets/000/131/484/medium800/adafruit_products_5991-04.jpg?1721759926) This breakout will be handy for projects where you need a lot more than 5V @ 2A power: this adapter can give up to 20V at 5A - yes you can get 100W over USB C! - and you could buck that down to get a ton of current at 5V or 12V if that's needed. Or use it to convert a DC or battery-powered device into a USB C powered one! ![](https://cdn-learn.adafruit.com/assets/assets/000/131/485/medium800/adafruit_products_5991-03.jpg?1721759953) **DIP switch-configured usage is simple** : simply unplug the USB PD so you don't accidentally select too high a voltage for your device. Then switch ON the voltage you want: 5V, 9V, 12V, 15V, 18V, or 20V. You'll get that voltage and as much current as the adapter will provide. No microcontroller or microcomputer is required! ![](https://cdn-learn.adafruit.com/assets/assets/000/131/486/medium800/adafruit_products_5991-02.jpg?1721759984) **I2C-configured usage** is also available via a Stemma QT port. Use the [Arduino library and example code](https://github.com/adafruit/Adafruit_HUSB238) to query the USB Type C PD source for available voltages and currents and select the desired voltage dynamically. When configuring over I2C, the jumper settings are used on startup until the I2C commands come over. The [STEMMA QT connector](https://learn.adafruit.com/introducing-adafruit-stemma-qt/what-is-stemma-qt) lets you make solderless connections between your development board and the breakout or chain it with a wide range of other sensors and accessories using a [**compatible cable**](https://www.adafruit.com/?q=stemma%20qt%20cable). [**QT Cable is not included** , but we have a variety in the shop](https://www.adafruit.com/?q=stemma+qt+cable&sort=BestMatch). - [Next Page](https://learn.adafruit.com/adafruit-usb-type-c-power-delivery-switchable-breakout/pinouts.md) ## Primary Products ### Adafruit USB Type C Power Delivery Dummy - I2C or Switchable [Adafruit USB Type C Power Delivery Dummy - I2C or Switchable](https://www.adafruit.com/product/5991) The HUSB238 USB PD sink chip is neat in that you can either use switches (really, resistor selection) to set the desired PD voltage _or_ use I2C for dynamic querying and setting. We already stock a simple  **** In Stock [Buy Now](https://www.adafruit.com/product/5991) [Related Guides to the Product](https://learn.adafruit.com/products/5991/guides) ## Guide Products ### Digital Multimeter - Model 9205B+ [Digital Multimeter - Model 9205B+](https://www.adafruit.com/product/2034) This massive multimeter has everything but the kitchen sink included. It's a great addition to any workbench or toolbox.  It's low cost, simple to use, and has a big clear display with all the measurements you need and more! The multimeter includes: - AC/DC Voltage... Out of Stock [Buy Now](https://www.adafruit.com/product/2034) [Related Guides to the Product](https://learn.adafruit.com/products/2034/guides) ## Related Guides - [USB C Power Delivery Monitor](https://learn.adafruit.com/usb-c-benchtop-power-supply.md) - [Fisher-Price USB Foot Pedal](https://learn.adafruit.com/fisher-price-usb-foot-pedal.md) - [DIY Adaptive Game Controllers](https://learn.adafruit.com/diy-adaptive-game-controllers.md) - [Super Nintendo USB Controller](https://learn.adafruit.com/super-nintendo-usb-controller.md) - [Adafruit HUSB238 USB Type C Power Delivery Breakout](https://learn.adafruit.com/adafruit-husb238-usb-type-c-power-delivery-breakout.md) - [USB to Eurorack Power Supply](https://learn.adafruit.com/usb-to-eurorack-power-supply.md) - [Hacking Yoto Music Players](https://learn.adafruit.com/hacking-the-yoto-music-players.md) - [Fisher-Price USB Controller](https://learn.adafruit.com/fisher-price-usb-controller.md) - [Case for HUSB238 Breakout](https://learn.adafruit.com/case-for-husb238.md) - [LED Noodle Lamp](https://learn.adafruit.com/led-noodle-lamp.md) - [Make It Glow: How to Solder NeoPixels, A Beginner's Guide](https://learn.adafruit.com/make-it-glow-how-to-solder-neopixels-a-beginners-guide.md) - [Ladyada's Toolkit](https://learn.adafruit.com/ladyadas-toolkit.md) - [Custom Scrolling Quote Board Matrix Display](https://learn.adafruit.com/aio-quote-board-matrix-display.md) - [No-Code WipperSnapper Action Counter](https://learn.adafruit.com/no-code-wippersnapper-action-counter.md) - [Adafruit Feather RP2040 with DVI Output Port](https://learn.adafruit.com/adafruit-feather-rp2040-dvi.md)