硬件

七针 OLED

cpp
 *  P2.0 CS
 *  P2.1 DC
 *  P2.2 RES
 *  P2.3 D1  SDA
 *  P2.4 D0
 * VCC 3.3V
 * GND GND

GY-30

cpp
//gy-30
//SCL--P1.4
//SDA--P1.5
//VCC--3.3V
//GND--GND
//ADDR--GND

部分程序

cpp
#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 */
    OLED_Init();                    /* OLED初始化 */
    P1DIR |= BIT6;
    P1SEL |= BIT6;
    P1SEL2 = 0;                              // Select default function for P1.2
    CCR0 = 1000;                             // PWM 周期
    CCTL1 = OUTMOD_7;                         // CCR1 reset/set
    CCR1 = 1;                               // PWM 高电平时间
    TACTL = TASSEL_2 + MC_1;                  // SMCLK, up mode
    while (1)
    {
        lx_int = (int) get_lightpower();
        CCR1 = lx_int/10;                               // PWM 高电平时间
        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] = 'L';
        dis[6] = 'x';
        dis[7] = 0;
        OLED_ShowString(0, 0, dis);
        delay_ms(200);
    }
}

全部代码

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