UNO WIFI REV2 Schematic does not match hardware

The schematics UNOWiFiRev2v4.0 15/10/18 do not match the hardware I was sent. The schematics list LED_BUILTIN as being on pin 26 of the MEGA4809 but the led is driven from pin 25. Where can I get a correct set of schematics? Is there a file listing the pin numbers from the processor and the connectors on the board i.e. digital 0 - 13?
-tim

[per1234]

The number on the PD05 pin in the schematic is referring to the physical pin number on the chip. The physical pin number has no relation to the Arduino pin number. So the schematic is correct.

There is a diagram of the Arduino pin mapping of the Uno WiFi Rev2 in a comment in its variant file:
https://github.com/arduino/ArduinoCore-megaavr/blob/1.6.24/variants/uno2018/pins_arduino.h#L139-L162

// ATMEGA4809 / ARDUINO
//
//                     (SCL)(SDA) (7)  (2)                 (R)  (3~) (6~)
//                 PA4  PA3  PA2  PA1  PA0  GND  VDD  UPDI PF6  PF5  PF4  PF3
//
//                  48   47   46   45   44   43   42   41   40   39   38   37
//              + ____ ____ ____ ____ ____ ____ ____ ____ ____ ____ ____ ____ +
//        PA5   1|                                                             |36  PF2
//        PA6   2|                                                             |35  PF1 (TOSC2)
//        PA7   3|                                                             |34  PF0 (TOSC1)
//   (9~) PB0   4|                                                             |33  PE3 (8)
//  (10~) PB1   5|                                                             |32  PE2 (13)
//   (5~) PB2   6|                                                             |31  PE1 (12)
//        PB3   7|                          48pin QFN                          |30  PE0 (11~)
//   (Tx) PB4   8|                                                             |29  GND
//   (Rx) PB5   9|                                                             |28  AVDD
//        PC0  10|                                                             |27  PD7 (VREF)
//        PC1  11|                                                             |26  PD6
//        PC2  12|                                                             |25  PD5 (A5)
//               + ____ ____ ____ ____ ____ ____ ____ ____ ____ ____ ____ ____ +
//                  13   14   15   16   17   18   19   20   21   22   23   24
//
//                  PC3  VDD  GND  PC4  PC5  PC6  PC7  PD0  PD1  PD2  PD3  PD4
//                                 (1)  (0)  (4)       (A0) (A1) (A2) (A3) (A4)

The Arduino pin numbers are the ones in parentheses.

Hopefully we'll make that information available directly from the Arduino Uno WiFi Rev2 product page soon.

When the documentation for pinMode(pin, type) refers to a pin the pin is the pin on the edge connector not the chip? The compiler does a translation based on the kind of microprocessor that is selected for compile?

If this is correct the documentation for pinMode, digitalWrite and digitalRead should clarify this.

@per1234 Thank you for your prompt response.

[per1234]

When the documentation for pinMode(pin, type) refers to a pin the pin is the pin on the edge connector not the chip? The compiler does a translation based on the kind of microprocessor that is selected for compile?

That is correct. Every official Arduino API takes Arduino pin numbers (as marked on the silkscreen of the board) and pretty much all the 3rd party Arduino libraries do the same.

the documentation for pinMode, digitalWrite and digitalRead should clarify this.

I'll consider how the documentation might be improved to make this more clear.