I need to enable AVR Datasheet Pin# 60 for the Laser and Pin #59 for the Spindle. Pin assignment Repetier pin# AVR Datasheet pin# 32-Pin Package This pinout is a robust and clean design that comes with 8 PWM pins. Like a 48-pin package, this pinout carries 4 UART and one SPI communication protocol. This pinout is reserved for ATmega4809 only. The Mega 2560 is based on AVR RISC Architecture. This pinout is almost identical to the 48-pin package with lesser pins and it comes with 8 PWM pins. I need to assign a digital pin within Repetier Firmware to do this but I am finding it impossible to determine which digital pin goes to which physical pin according to the AVR Datasheet. The Pinout of Arduino Mega is shown below: The description of pins present on the Arduino board are listed below: ATmega2560 Microcontroller - The Atmega2560 is a CMOS (Complementary Metal Oxide Semiconductor) low powered 8-bit microcontroller. I plan to set a high signal on the port PC7 to start/stop the laser and PC6 for a router. It is physical pin 60 on the ATMega 2560. EXP3 (Expansion Port 3) has a pin which connects directly to Input/Output port PC7 (A15). If you use a MKR board as ISP programmer, remember to change the line 73 of the ArduinoISP defining the actual pin used on the MKR board to Reset the target (6 in the picture above). I am trying to set up a laser using EXP3 on a RUMBA board. The high-performance, low-power Microchip 8-bit AVR® RISC-based microcontroller combines 256 KB ISP flash memory, 8 KB SRAM, 4 KB EEPROM, 86 general purpose I/O lines, 32 general purpose working registers, real-time counter, six flexible timer/coun. Please note that the MKR family of boards share the same pinout, therefore you can use any MKR board as ISP programmer.
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