If Iâve confused you anywhere, post your code and tell us which pins youâve used for each device, weâll show you where to edit your software so it matches what youâve done in hardware. 5: 4761: Arduino Due and DS1307 RTC on Datalogger Shield V1. It has 54 digital input/output pins (of which 15 can be used as PWM outputs), 16 analog inputs, 4 UARTs (hardware serial ports), a 16 MHz crystal oscillator, a USB connection, a power jack, an ICSP header, and a reset button. Getting RTC to work with data-logging board and Arduino MEGA. The Arduino Mega 2560 is a microcontroller board based on the ATmega2560. Hello, i using a Mega 2560R3 and a Data Logger Shield v1.0. Again, the pin you use must appear in the object constructor in your software. Data Logger Shield v1.0 Arduino Mega 2560. The second device needs its own CS pin and you can use any digital pin you desire. The CS on pin 53 can only be connected to one device, it does not matter which one but it needs to match the software pin declaration. You can use those pins in addition to those on 50, 51 and 52 as they are connected in parallel on the pcb. The six pin connector to the right of the atMeag2560 processor are the duplicate pins Nick is referring to. Those are the SPI pins for the dedicated USB to serial converter atMega processor. I know there is a separate 6 pin by the reset button is also for MOSI
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