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diff --git a/docs/feature_split_keyboard.md b/docs/feature_split_keyboard.md index f054f365b..b23411420 100644 --- a/docs/feature_split_keyboard.md +++ b/docs/feature_split_keyboard.md | |||
@@ -237,6 +237,26 @@ This sets the maximum timeout when detecting master/slave when using `SPLIT_USB_ | |||
237 | ``` | 237 | ``` |
238 | This sets the poll frequency when detecting master/slave when using `SPLIT_USB_DETECT` | 238 | This sets the poll frequency when detecting master/slave when using `SPLIT_USB_DETECT` |
239 | 239 | ||
240 | ## Hardware Considerations and Mods | ||
241 | |||
242 | While most any Pro Micro can be used, micro controllers like the AVR Teensys and most (if not all) ARM boards require the Split USB Detect. | ||
243 | |||
244 | However, with the Teensy 2.0 and Teensy++ 2.0, there is a simple hardware mod that you can perform to add VBUS detection, so you don't need the Split USB detection option. | ||
245 | |||
246 | You'll only need a few things: | ||
247 | |||
248 | * A knife (x-acto knife, ideally) | ||
249 | * A solder station or hot air station | ||
250 | * An appropriate Schottky diode, such as the [PMEG2005EH](https://www.digikey.com/en/products/detail/nexperia-usa-inc/PMEG2005EH,115/1589924) | ||
251 | |||
252 | You'll need to cut the small trace between the 5V and center pads on the back of the Teensy. | ||
253 | |||
254 | Once you have done that, you will want to solder the diode from the 5V pad to the center pad. | ||
255 | |||
256 | You may need to use the 5V pad from the regulator block above as the pads were too small and placed too closely together to place the Schottky diode properly. | ||
257 | |||
258 |  | ||
259 | |||
240 | ## Additional Resources | 260 | ## Additional Resources |
241 | 261 | ||
242 | Nicinabox has a [very nice and detailed guide](https://github.com/nicinabox/lets-split-guide) for the Let's Split keyboard, that covers most everything you need to know, including troubleshooting information. | 262 | Nicinabox has a [very nice and detailed guide](https://github.com/nicinabox/lets-split-guide) for the Let's Split keyboard, that covers most everything you need to know, including troubleshooting information. |