![]() I want to minimise the amount of data sent such that I can achieve the best FPS rate with my Arduino MEGA.ĬRGB leds įastLED.addLeds(leds, NUM_LEDS_BRANCH_1) įastLED.addLeds(leds, NUM_LEDS_BRANCH_2) įastLED.addLeds(leds, NUM_LEDS_BRANCH_31) įastLED. However, I actually only have a total of 304 WS2812b in my Xmas tree such that the largest branch has 12 LEDS, some branches 11, 10, etc… and the smallest branch only has 5 LEDS. The Arduino Mega 2560 is a microcontroller board based on the ATmega2560. ![]() There are pin mappings to Atmega8 and Atmega 168/328 as well. Below is the pin mapping for the Atmega2560. The code running a FIRE2012 style animation compiled to less than 49Kb so I’m happy with that. A diagram showing the correspondence between the pins on an Arduino board and those of the ATmega2560 microcontroller. Try 10K to start and if the switch data is unreliable, go to smaller resistors (minimum 1K). If the internal pullups dont cut it add external pullups. The SoftwareSerial library allows serial communication on other digital pins of an Arduino board. For longer wires a harder (less resistance) pullup is needed. Found at SoftwareSerial on Arduino Mega 2560 - 7 by nickgammon - Networking, Protocols, and Devices - Arduino Forum. As mentioned, I was able to verify that I can have a 32X12 array of LEDs (384) driven out of 32 different pins of a MEGA 2560 with the FASTLED library. I have a Mega 2560 connected via pin 6 and a 470 ohm resistor and, a 1000 uf capacitor across the power rails on the breadboard with 5, PL9823 addressable. The internal pullup resistors are 20K to 50K ohms, thus pretty weak.
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