Interactive Arduino menu system over serial line
Posted: Sun Apr 03, 2016 3:19 pm
There is a simple and convenient way to interact with an Arduino board via serial line using a terminal application, such as PuTTY, which supports ANSI escape codes. This makes it super easy to serve the user with an interactive menu like this one:
The example below shows how to approach this:
The example below shows how to approach this:
Code: Select all
// [CODE BY FIPS @ 4FIPS.COM, (c) 2016 FILIP STOKLAS, MIT-LICENSED]
#define RST "\033[0m"
#define SEL "\033[1;93;41m"
static int sel = 0;
void refresh() {
Serial.print("\033[2J"); // clear screen
Serial.print("\033[H"); // cursor to home
Serial.print(sel == 0 ? SEL : RST);
Serial.println(" Menu Item 1 ");
Serial.print(sel == 1 ? SEL : RST);
Serial.println(" Menu Item 2 ");
Serial.print(sel == 2 ? SEL : RST);
Serial.println(" Menu Item 3 ");
Serial.print(RST);
}
void setup() {
Serial.begin(9600);
while (!Serial) delay(100);
refresh();
}
void loop() {
if (Serial.available()) {
switch (Serial.read()) {
case '[': {
sel = sel <= 0 ? 0 : (sel - 1);
break;
}
case ']': {
sel = sel >= 2 ? 2 : (sel + 1);
break;
}
}
refresh();
}
}