硬件

gy-30

oled

cpp
展开代码
//gy-30
//SCL--P1.4
//SDA--P1.5
//VCC--3.3V
//GND--GND
//ADDR--GND
//oled
//SCL--P2.0
//SDA--P2.1
//VCC--3.3V
//GND--GND

原理图

部分程序

cpp
展开代码
#include <msp430.h>
#include "gy30.h"
#include "oled.h"
float lx;
int main(void)
{
    int lx_int;
    unsigned char dis[10];
    WDTCTL = WDTPW + WDTHOLD; /* Stop WDT */
    if (CALBC1_1MHZ == 0xFF)                  // If calibration constant erased
    {
        while (1)
            ;                               // do not load, trap CPU!!
    }
    DCOCTL = 0;                          // Select lowest DCOx and MODx settings
    BCSCTL1 = CALBC1_1MHZ;                    // Set range
    DCOCTL = CALDCO_1MHZ;                     // Set DCO step + modulation */
    OLED_Init();
    OLED_ShowString(0, 0, "GY-30:");
    OLED_ShowString(0, 2, "       Lx");
    while (1)
    {
        lx_int = (int) get_lightpower();
        dis[0] = lx_int / 10000 + '0';
        dis[1] = lx_int % 10000 / 1000 + '0';
        dis[2] = lx_int % 1000 / 100 + '0';
        dis[3] = lx_int % 100 / 10 + '0';
        dis[4] = lx_int % 10 + '0';
        dis[5] = 0;
        OLED_ShowString(0, 2, dis);
        delay_ms(200);
    }
}

所有代码下载

cpp
展开代码
https://docs.qq.com/sheet/DUEdqZ2lmbmR6UVdU?tab=BB08J2