The Proton MKII is an 8-bit development board compatible with 5V PIC16 and PIC18 40-pin processors.

Programming may be performed via ICSP, however, Wellington boot loader is recommended for PIC18 to enable loading firmware via UART.

This board is no longer in production.

        RX  TX     GND
    1   2   3   4   5
    x   x   x   x   x
      x   x   x   x
      6   7   8   9

TX RC6
RX RC7

PROTON ICSP     MCHP ICSP
-----------     ---------
NC  x x VPP     5 4 3 2 1
NC  x x NC      x x x x x
GND x x PGD     P P V V V
GND x x PGC     G G S D P
GND x x NC      C D S D P

LCD (HD44780)/LED       KEYPAD                  I2C EEPROM      SPI EEPROM
-----------------       ------                  ----------      ----------
R/W GND                 ROWS RB0 .. RB3         SCL RC3         SCK   RC3
RS  RE0 GR_LCD_EN       COLS RB4 .. RB7         SDA RC4         !CS   RC4
EN  RE1 GR_LCD_CS1                                              SI/SO RC5
    RE2 GR_LCD_CS2      POTENTIOMETER           J8 SCL PULLUP
DB0 RD0 LED1            -------------           J7 SDA PULLUP
DB1 RD1 LED2            RA0
DB2 RD2 LED3
DB3 RD3 LED4            J10 ENABLE
DB4 RD4 LED5
DB5 RD5 LED6            IR SENSOR               IR LED LEFT     IR LED RIGHT
DB6 RD6 LED7            ---------               -----------     ------------
DB7 RD7 LED8            RC0                     RC2             RC1

J1 LED ENABLE           J3 ENABLE               J5 ENABLE       J4 ENABLE
J6 LCD BACKLIGHT

9V A.C.