touch_test3.ino
· 1.2 KiB · Arduino
Surowy
#include <SPI.h>
#define SCK D5
#define MISO D6
#define CS D8
#define MOSI D7
void setup() {
Serial.begin(115200);
Serial.println("OK");
pinMode(SCK, OUTPUT);
pinMode(CS, OUTPUT);
pinMode(MOSI, OUTPUT);
pinMode(MISO, INPUT);
digitalWrite(CS, HIGH);
SPI.pins(SCK, MISO, MOSI, CS);
SPI.begin();
}
void loop() {
digitalWrite(CS, LOW);
uint8_t data = SPI.transfer(0xFF); // Always transfer full 1 bits
digitalWrite(CS, HIGH);
uint8_t flag = data & 0x80; // Get the 7th bit
data &= 0x7F; // Reset it, so we have only the pure value in data
if (data != 0x7F) {
// We have some data, not all 1's
if (flag) { // Buttons
Serial.print("BUTTONS: ");
switch (data) {
case 0:
Serial.println("RIGHT");
break
case 1:
Serial.println("POWER");
break
case 2:
Serial.println("LEFT");
break
}
} else { // Slider
Serial.print("SLIDER: ");
// MAX is 54 and MIN is 1 so:
uint16_t v = (uint16_t)data;
v -= 1; // MIN
v *= 100; // Percent
v /= (54 - 1); // MAX - MIN
Serial.print(v);
Serial.println("%");
}
}
delay(100);
}
| 1 | #include <SPI.h> |
| 2 | |
| 3 | #define SCK D5 |
| 4 | #define MISO D6 |
| 5 | #define CS D8 |
| 6 | #define MOSI D7 |
| 7 | |
| 8 | |
| 9 | void setup() { |
| 10 | Serial.begin(115200); |
| 11 | Serial.println("OK"); |
| 12 | |
| 13 | pinMode(SCK, OUTPUT); |
| 14 | pinMode(CS, OUTPUT); |
| 15 | pinMode(MOSI, OUTPUT); |
| 16 | pinMode(MISO, INPUT); |
| 17 | |
| 18 | digitalWrite(CS, HIGH); |
| 19 | |
| 20 | SPI.pins(SCK, MISO, MOSI, CS); |
| 21 | SPI.begin(); |
| 22 | } |
| 23 | |
| 24 | void loop() { |
| 25 | digitalWrite(CS, LOW); |
| 26 | uint8_t data = SPI.transfer(0xFF); // Always transfer full 1 bits |
| 27 | digitalWrite(CS, HIGH); |
| 28 | |
| 29 | uint8_t flag = data & 0x80; // Get the 7th bit |
| 30 | data &= 0x7F; // Reset it, so we have only the pure value in data |
| 31 | |
| 32 | if (data != 0x7F) { |
| 33 | // We have some data, not all 1's |
| 34 | if (flag) { // Buttons |
| 35 | Serial.print("BUTTONS: "); |
| 36 | switch (data) { |
| 37 | case 0: |
| 38 | Serial.println("RIGHT"); |
| 39 | break |
| 40 | case 1: |
| 41 | Serial.println("POWER"); |
| 42 | break |
| 43 | case 2: |
| 44 | Serial.println("LEFT"); |
| 45 | break |
| 46 | } |
| 47 | } else { // Slider |
| 48 | Serial.print("SLIDER: "); |
| 49 | // MAX is 54 and MIN is 1 so: |
| 50 | uint16_t v = (uint16_t)data; |
| 51 | v -= 1; // MIN |
| 52 | v *= 100; // Percent |
| 53 | v /= (54 - 1); // MAX - MIN |
| 54 | Serial.print(v); |
| 55 | Serial.println("%"); |
| 56 | } |
| 57 | } |
| 58 | delay(100); |
| 59 | } |