Additionally, the INPUT mode explicitly disables the internal pullups. void setup() { pinMode(13, OUTPUT); // sets the digital pin 13 as output } void loop() { digitalWrite(13, HIGH); // sets the ...

Example: uint8_t pixels[6]; //buffer - 6 bytes = 2 LEDs * 3 color channels pinMode(14,OUTPUT); //this throws away the advantage of eliminating pinMode - you might want to replace this with directly ...

For DAC81404, I managed to use Arduino Uno to configure and control its voltage output. This is code for DAC setting. // Chip Select pinMode(DAC_SS_PIN, OUTPUT); digitalWrite(DAC_SS_PIN, HIGH); // DAC ...

The program is: #include <SPI.h> int CS = 53; //pin53 slave select int Data = 51; //pin51 MOSI serial data int SCLK = 52; //pin52 clock void setup() { // put your setup code here, to run once: pinMode ...