From 14a11a88b9e54f5da280c34d4d09883e849b0b3b Mon Sep 17 00:00:00 2001 From: "Mr.Blinky" <mstr.blinky@gmail.com> Date: Fri, 25 May 2018 23:15:57 +0200 Subject: [PATCH] Update README.md --- README.md | 43 ++++++++++++++++++++++++++++++++++++++----- 1 file changed, 38 insertions(+), 5 deletions(-) diff --git a/README.md b/README.md index bb903cd..56255b2 100644 --- a/README.md +++ b/README.md @@ -32,13 +32,13 @@ This package contains all the currently available Arduboy libraries with changes | OLED CS | 12 PORTD6 | 6 PORTD7 | GND | 1/TXO PORTD3* | | OLED DC | 4 PORTD4 | 4 PORTD4 | 4 PORTD4 | 4 PORTD4 | | OLED RST | 6 PORTD7 | 12 PORTD6 | 6 PORTD7 | 2 PORTD1* | -| SPI SCK | 15 PORTB1 | 15 PORTB1 | PORTB 1 | PORTB1 | -| SPI MOSI | 16 PORTB2 | 16 PORTB2 | PORTB2 | PORTB2 | +| SPI SCK | 15 PORTB1 | 15 PORTB1 | 15 PORTB 1 | 15 PORTB1 | +| SPI MOSI | 16 PORTB2 | 16 PORTB2 | 16 PORTB2 | 16 PORTB2 | | RGB LED RED | 10 PORTB6 | _ | 10 PORTB6 | 10 PORTB6 | | RGB LED GREEN | 11 PORTB7 | _ | - | 3 PORTD0* | | RGB LED BLUE | 9 PORTB5 | 17 PORTB0 | 9 PORTB5 | 9 PORTB5 | -| RxLED | PORTB0 | _ | PORTB0 | PORTB0 | -| TxLED | PORTD5 | _ | PORTD5 | PORTD5 | +| RxLED | 17 PORTB0 | _ | 17 PORTB0 | 17 PORTB0 | +| TxLED | 30 PORTD5 | _ | 30 PORTD5 | 30 PORTD5 | | BUTTON UP | A0 PORTF7 | 8 PORTB4 | A0 PORTF7 | A0 PORTF7 | | BUTTON RIGHT | A1 PORTF6 | 5 PORTC6 | A1 PORTF6 | A1 PORTF6 | | BUTTON LEFT | A2 PORTF5 | 9 PORTB5 | A2 PORTF5 | A2 PORTF5 | @@ -48,7 +48,7 @@ This package contains all the currently available Arduboy libraries with changes | SPEAKER PIN 1 | 5 PORTC6 | A2 PORTF5 | 5 PORTC6 | 5 PORTC6 | | SPEAKER PIN 2 | 13 PORTC7 | A3 PORTF4** | GND | 6 PORTD7* | |----------------- | ---------------------- | ----------- | ---------------------------------- | --------------------------------- | -| CARD_CS | 0 PORTD2*** | - | - | 0 PORTD2*** | +| CART_CS | 0 PORTD2*** | - | - | 0 PORTD2*** | | SPI MISO | 14 PORTB3*** | - | - | 14 PORTB3*** | Numbers before the portnames are Arduino assigned pin numbers. @@ -69,3 +69,36 @@ configured as an output. Future Flash cart support: * 0 PORTD2 Future flash cart chip select * 14 PORTB3 flash cart data in (MISO) + +## (future) expansion connector + +An expansion connector can be added to modified or Homemade Arduboy in the form of a 12 pin female header with 0.1"pitch. which can be used for: +* ICSP header for easy in circuit programming (updating bootloader) +* flash cart slot +* SD card adapter +* infrared communications +* multiplayer link +* sensors + +### Expansion connector pinout + +( (Homemade) Arduboy facing top - front view female pinheader) + +| 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | +| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | +| TX | RX | SCL | SDA | NC | KEY | MISO| MOSI| CLK | RST | GND | Vcc | +```text +TX* - Serial Transmitter output +RX - Serial Receiver input / Flash cart chip select +SCL* - I2C/TWI serial clock I/O +SDA* - I2C/TWI serial data I/O +NC - Not connected (reserved for future use) +KEY - Key pin. should be filled to block pin insertion (reverse insert protection) +MISO - SPI/ICSP Master Input, Slave Output +MOSI - SPI/ICSP Master Output, Slave Input +CLK - SPI/ICSP clock +RST - MCU/ICSP reset +GND - Ground (0V) +Vcc - 5V (~3.0V to ~4.1V on Arduboy) +(*) Not available when using Pro Micro with Alternate Wiring +```