Franz Pucher
/
ESP32
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I2C Axis Accelerometer
Für den MMA7660 ist die Bibliothek über Tool->Manage Libraries (Strg+Shift+I) Accelerometer_MMA7660 zu installieren. Eine Beschreibung ist auch im Arduino Playground zu finden. Über Files->Examples->Accelerometer_MMA7660->MMA7660FC_Demo.ino kann das Demo-Programm geladen, compiliert und auf den ESP32 geladen werden oder das folgende Programm verwendet werden:
#include <Wire.h>
#include "MMA7660.h"
MMA7660 accelemeter;
void setup() {
accelemeter.init();
Serial.begin(9600);
}
void loop() {
int8_t x, y, z;
float ax,ay,az;
enum {BufSize=50};
char buf [BufSize];
float myFloat = -1.012;
Serial.println("******************************************");
accelemeter.getXYZ(&x,&y,&z);
snprintf (buf, BufSize, "x=%d y=%d z=%d", x, y, z); // snprintf is safer than sprintf
Serial.println(buf);
accelemeter.getAcceleration(&ax,&ay,&az);
snprintf (buf, BufSize, "ax: %.2fg ay: %.2fg az: %.2fg", ax, ay, az);
Serial.println(buf);
delay(500);
}