![]() Is there a difference between coding for the Mega and the Uno R4? I can't understand the massive difference I'm seeing when running identical code on the two boards. Using the Arduino IDE serial monitor, I don't see this delay that I'm seeing with Pyserial. A SoftwareSerial library allows for serial communication on any of the Mega 2560s digital pins. Any lower, and I end up with no readings ever being returned. When using a Mega 2560 R3, this minimum time increase to 0.85 seconds. ![]() When using an Uno R4, I can get away with a sleep time as low as 0.001 between the "R4Encoder.write" and "if R4Encoder.inWaiting()" commands, allowing me to read the encoder position tens of times per second or more. The Arduino Mega 2560, the successor to the Arduino Mega, is a microcontroller board based on a ATmega2560 AVR microcontroller. The pin 13 when I measure the period of HIGH is 6 microsecs and the LOW is 6microsecs. Result = R4Encoder.readline().decode().split(",") Hi All, I have an Arduino Mega 2560 Rev 3 board. I also have an altimeter connected (working fine) and an LCD display (from the Arduino starter kit) which uses SPI. The board accommodates the ATmega2560 microcontroller, which operates at a frequency of 16 MHz. I have an Arduino Mega 2560 Rev3 stacked with a Gravity Expansion shield by DF Robot, which has a built in micro SD module. Are you using pins 24-29 for the data lines Code: Select all if defined(AVRATmega1280) defined(AVRATmega2560) // Arduino Mega is now tested and. Serial.println(oldPosition + p1 + oldPosition2) The Arduino MEGA 2560 is designed for projects that require more I/O lines, more sketch memory and more RAM. Arduino Mega 2560 is an exemplary development board dedicated for building extensive applications as compared to other maker boards by Arduino. ![]() On the Arduino side, my code looks like: #include ![]() On the computer side, I sync up the motor controller with the encoders using python. I'm trying to use Arduinos to sync up the position of a scanning mirror with a camera using rotary encoders. ![]()
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