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tapdemo.ino
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tapdemo.ino
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// Basic demo for tap/doubletap readings from Adafruit LIS3DH
#include <Wire.h>
#include <SPI.h>
#include <Adafruit_LIS3DH.h>
#include <Adafruit_Sensor.h>
// Used for software SPI
#define LIS3DH_CLK 13
#define LIS3DH_MISO 12
#define LIS3DH_MOSI 11
// Used for hardware & software SPI
#define LIS3DH_CS 10
// software SPI
//Adafruit_LIS3DH lis = Adafruit_LIS3DH(LIS3DH_CS, LIS3DH_MOSI, LIS3DH_MISO, LIS3DH_CLK);
// hardware SPI
//Adafruit_LIS3DH lis = Adafruit_LIS3DH(LIS3DH_CS);
// I2C
Adafruit_LIS3DH lis = Adafruit_LIS3DH();
// Adjust this number for the sensitivity of the 'click' force
// this strongly depend on the range! for 16G, try 5-10
// for 8G, try 10-20. for 4G try 20-40. for 2G try 40-80
#define CLICKTHRESHHOLD 80
void setup(void) {
#ifndef ESP8266
while (!Serial) yield(); // will pause Zero, Leonardo, etc until serial console opens
#endif
Serial.begin(9600);
Serial.println("Adafruit LIS3DH Tap Test!");
if (! lis.begin(0x18)) { // change this to 0x19 for alternative i2c address
Serial.println("Couldnt start");
while (1) yield();
}
Serial.println("LIS3DH found!");
lis.setRange(LIS3DH_RANGE_2_G); // 2, 4, 8 or 16 G!
Serial.print("Range = "); Serial.print(2 << lis.getRange());
Serial.println("G");
// 0 = turn off click detection & interrupt
// 1 = single click only interrupt output
// 2 = double click only interrupt output, detect single click
// Adjust threshhold, higher numbers are less sensitive
lis.setClick(2, CLICKTHRESHHOLD);
delay(100);
}
void loop() {
uint8_t click = lis.getClick();
if (click == 0) return;
if (! (click & 0x30)) return;
Serial.print("Click detected (0x"); Serial.print(click, HEX); Serial.print("): ");
if (click & 0x10) Serial.print(" single click");
if (click & 0x20) Serial.print(" double click");
Serial.println();
delay(100);
return;
}