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Promicro documentation update (#8864)

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* Delete variants/nrf52840/diy/nrf52_promicro_diy_tcxo/Schematic_Pro-Micro_Pinouts.pdf

remove old file

* Add updated schematic

* Update GPS TX and RX pin definitions after swap

* Update GPS pin definitions and schematic link

Updated the schematic link to reflect GPS pin definition changes.
This commit is contained in:
Tom
2025-12-04 19:35:50 +00:00
committed by GitHub
parent 61e41a8beb
commit aa85fbbcc4
3 changed files with 3561 additions and 2753 deletions
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6302
variants/nrf52840/diy/nrf52_promicro_diy_tcxo/Schematic_Pro-Micro_Pinouts.pdf → variants/nrf52840/diy/nrf52_promicro_diy_tcxo/Schematic_Pro-micro_Pinouts_2025-12-04.pdf
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variants/nrf52840/diy/nrf52_promicro_diy_tcxo/readme.md
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@@ -2,9 +2,11 @@
# Notes
News 2025-12-04 - The GPS pin definitions have been changed!!! This has no material effect on current builds, but future builders may wish to review how they are using the wires.
## General
The pinout is contained in the variant.h file, and a [generic schematic](./Schematic_Pro-Micro_Pinouts.pdf) is located in this directory.
The pinout is contained in the variant.h file, and a [generic schematic](./Schematic_Pro-Micro_Pinouts_2025-12-04.pdf) is located in this directory.
This variant is suitable for both TCXO and XTAL types of modules. The old XTAL variant has been removed to reduce confusion.

8
variants/nrf52840/diy/nrf52_promicro_diy_tcxo/variant.h
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@@ -30,8 +30,8 @@ NRF52 PRO MICRO PIN ASSIGNMENT
| Gnd   |             |   | reset   |             | |
| Gnd   |             |   | ext_vcc | *see 0.13   | |
| P0.17 | RXEN       |   | P0.31   | BATTERY_PIN | |
| P0.20 | GPS_RX     |   | P0.29   | BUSY         | DIO0 |
| P0.22 | GPS_TX     |   | P0.02   | MISO | MISO |
| P0.20 | GPS_TX     |   | P0.29   | BUSY         | DIO0 |
| P0.22 | GPS_RX     |   | P0.02   | MISO | MISO |
| P0.24 | GPS_EN     |   | P1.15   | MOSI         | MOSI |
| P1.00 | BUTTON_PIN |   | P1.13   | CS           | CS   |
| P0.11 | SCL         |   | P1.11   | SCK         | SCK |
@@ -90,8 +90,8 @@ NRF52 PRO MICRO PIN ASSIGNMENT
#define BUTTON_PIN (32 + 0) // P1.00
// GPS
#define PIN_GPS_TX (0 + 20) // P0.20
#define PIN_GPS_RX (0 + 22) // P0.22
#define PIN_GPS_TX (0 + 20) // P0.20 - This is data from the MCU
#define PIN_GPS_RX (0 + 22) // P0.22 - This is data from the GNSS
#define PIN_GPS_EN (0 + 24) // P0.24
#define GPS_UBLOX