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nrf/README: Describe Pin numbering scheme for nRF52840.

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Clarify that the nRF52840's GPIO 1.00 to 1.15 maps to Pin(32-47) in
MicroPython.
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JPFrancoia 2020-10-01 09:51:58 +02:00 committed by Glenn Ruben Bakke
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ports/nrf/README.md
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@ -187,3 +187,12 @@ Other:
* nRF UART application for IPhone/Android
WebBluetooth mode can also be configured by editing `bluetooth_conf.h` and set `BLUETOOTH_WEBBLUETOOTH_REPL` to 1. This will alternate advertisement between Eddystone URL and regular connectable advertisement. The Eddystone URL will point the phone or PC to download [WebBluetooth REPL](https://aykevl.nl/apps/nus/) (experimental), which subsequently can be used to connect to the Bluetooth REPL from the PC or Phone browser.
## Pin numbering scheme for nrf52840-based boards
Software Pins 0-31 correspond to physical pins 0.x and software Pins 32-47
correspond to physical pins 1.x.
Example:
`Pin(47)` would be 1.15 on the PCA10059