![]() Port7– RJ25 dual-digital/analog interface for adding sensors or input/output RJ25 modules (require keyset for MegaPi’s transferring to RJ25). ![]() Port6 – RJ25 dual-digital/analog interface for adding sensors or input/output RJ25 modules (require keyset for MegaPi’s transferring to RJ25).Port5 – RJ25 communication module interface for adding Bluetooth or WIFI which requires RJ25 (require keyset for MegaPi’s transferring to RJ25).Port4 – motor driver interface for driving DC motor, stepping motor and encoder motor (require corresponding driving module).Port3 – motor driver interface for driving DC motor, stepping motor and encoder motor (require corresponding driving module).Port2 –motor driver interface for driving DC motor, stepping motor and encoder motor (require corresponding driving module).Port 1 – motor driver interface for driving DC motor, stepping motor and encoder motor (require corresponding driving module).Wireless communication interface – for adding Bluetooth module or 2.4G module (require corresponding communication module).Their colors and functions are as follows: MegaPi for RJ 25 provides four RJ25 ports identified by labels of five different colors. Green Interface–power output/motor output 5. The various colors on MegaPi represents specialized functions:īlue pin–wireless communication interface Interfaces of MegaPi and Other Plug-in Modules One reset key, one power indicator (red) and one I/O indicator (blue)Ĥ.High-power DC input interface with an over-current protection of 2A and anti-reverse measurement.It uses the CH340G USB to serial chip which can realize communication between the computer and MegaPi easily and stably B-type USB interface for downloading programs and communications.Slide switch for controlling the power supply.Three M4 mounting holes which allow the board to be connected with Raspberry Pi.One Raspberry Pi switch interface (requires manual soldering) to realize 5V to 3.3V serial communication.Maximum output of normal I/O ports is DC 5V 3A Two high-power MOS driver interface which is able to drive devices with a maximum current of 10A.Ten servo interfaces which enable the board to drive up to 10 servos at the same time.One wireless communication interface for adding Bluetooth module or 2.4G module.Four motor driver interfaces for adding encoder motor driver and stepper motor driver, and thus to drive DC motors, encoder motors and stepper motors.It is the ideal option for various robotic projects, such as smart robot car and 3D printer. MegaPi has strong motor-driving ability which is capable of driving 10 servos or 8 DC motors simultaneously. MegaPi can be divided into 6 function area, allowing you to connect with various plug-in modules to drive motors and sensor and to realize wireless communication. It is based on Arduino MEGA 2560 and supports programming with Arduino IDE perfectly. MegaPi is a main control board specially designed for makers and also an ideal option for being applied to education field and all kinds of matches. \arduino-0021\libraries\FileLogger\Spi.h. Result = FileLogger::append("data.log", buffer, length) Unsigned long length = sizeof(MESSAGE)-1 variable used when reading from serial define the pin that powers up the SD card However, after re-formatting them again (I used Windows XP and FAT option at the format program), they work!! Software: FileLogger library which is included at IDE v0021.Ī) FAT32 is not supported - you need to format using FAT(16).ī) Some SD cards with already FAT16 do not work. Also, some of the aspects below may not apply for your configuration: You can try modifications if you have a similar but not identical configuration. These are the final guidelines if you want some direction to make the Arduino Mega 1280 board work with the SD Card Shield 2.1 (from ). Based on the last reply, I realized that I copied wrong code from somewhere and the MISO mapping is swapped with MOSI.
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