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薩科微SL-W-TRS-5.5Dx數(shù)字紅外熱電堆demo板使用教程

應(yīng)用案例|Application Cases|

2024-10-17 15:09:10 712

深圳市薩科微SLKOR(www.jj-led.cn)半導(dǎo)體有限公司技術(shù)骨干來(lái)自清華大學(xué)和韓國(guó)延世大學(xué)，以新材料新工藝新產(chǎn)品引領(lǐng)公司發(fā)展，較早就掌握國(guó)際*的第三代半導(dǎo)體碳化硅功率器件技術(shù)。薩科微集電子產(chǎn)品的設(shè)計(jì)開(kāi)發(fā)、生產(chǎn)和銷售一體化的高新科技企業(yè)，為客戶提供可靠的產(chǎn)品和配套的技術(shù)服務(wù)，“slkor”逐漸發(fā)展成為國(guó)際知名品牌，為全*超過(guò)10000家客戶提供產(chǎn)品和解決方案。為了努力為客戶提供全系列的配套產(chǎn)品，薩科微推出一系列數(shù)字紅外熱電堆非接觸測(cè)溫應(yīng)用設(shè)計(jì)demo板使用教程。

1.1名稱：薩科微數(shù)字紅外熱電堆非接觸測(cè)溫應(yīng)用設(shè)計(jì)demo板使用教程

1.2應(yīng)用：智能可穿戴設(shè)備、智能手機(jī)、工業(yè)溫度監(jiān)測(cè)、非接觸表面人體測(cè)溫、智能溫度感應(yīng)與控制等近距離測(cè)溫尺寸較小的設(shè)備

1.3薩科微SL-W-TRS-5.5Dx系列demo板：

用于對(duì)各型號(hào)傳感器進(jìn)行評(píng)估測(cè)試。測(cè) 量結(jié)果會(huì)在屏幕上顯示，并可以通過(guò) USB 轉(zhuǎn)串口打印到 PC 端串口調(diào)試軟件。按鍵說(shuō)明：左側(cè)按鍵為復(fù)位，右側(cè)按鍵可以控制程序啟動(dòng)、暫停。

2．薩科微SL-W-TRS-5.5Dx系列硬件設(shè)計(jì)

芯片引腳包含電源、I2C 總線共 4 個(gè)管腳，供電電壓允許范圍為 2.3~3.6V。傳感器本身功耗很低，電源地之間使用一顆 0.1uF 電容即可，如果傳感器離供電部分比較遠(yuǎn)，可以考慮增加一個(gè)10uF 電容，以保證電源穩(wěn)定降低噪聲。

3.薩科微（www.slkoric.com）SL-W-TRS-5.5Dx系列demo板說(shuō)明

3.1 demo 板通過(guò) Type-C 插座供電，demo 板供電電壓為 5V。使用時(shí)將 demo 板通過(guò) Type-c 連接至 PC 端，即可從屏幕上查看結(jié)果。如需串口顯示數(shù)據(jù)，需安裝沁恒 CH340 驅(qū)動(dòng)程序然后使用串口調(diào)試軟件進(jìn)行操作，串口通信設(shè)置為：波特率：9600 數(shù)據(jù)位：8 停止位：1 無(wú)奇偶校驗(yàn)

3.2 demo 板屏幕顯示從上到下依次是：環(huán)境溫度（tamb）、傳感器輸出電壓（vtp_cor）、物體（表面）溫度（tobj）、人體溫度（tbdy）。上述數(shù)值溫度單位為℃，電壓?jiǎn)挝粸?uV。其中前三個(gè)值為器件原始輸出，體溫值使用我司算法根據(jù)原始值計(jì)算得到，僅供參考，用戶可以根據(jù)需要使用自家體溫算法來(lái)處理數(shù)據(jù)。

串口顯示效果

3．薩科微SL-W-TRS-5.5Dx系列demo板程序示例

//////////////////////////////////////////////////////////////////////////////////////////////////////

// main.c

//////

#define FOR_CUSTOMER

#ifdef FOR_CUSTOMER

#include "drv_uart.h"

#include "drv_i2c.h"

#include "drv_key.h"

#include "oled/oled.h"

#include "trs55d.h"

extern void SystemCoreClockupdate(void);

extern void delay_ms(int cnt);

int main(void)

{

uint8_t key;

uint8_t run = 0x01;

SystemCoreClockupdate();

if (SysTick_Config(SystemCoreClock / 1000))

while(1);

uartInit();

drv_i2c_init();

drv_key_init();

OLED_Init();

OLED_Refresh();

OLED_Clear();

OLED_ShowString(8,0,"Tamb:",16,1);

OLED_ShowString(8,16,"Vtp:",16,1);

OLED_ShowChinese(8,32,0,16,1);

OLED_ShowChinese(24,32,2,16,1);

OLED_ShowChinese(40,32,3,16,1);

OLED_ShowChinese(8,48,1,16,1);

OLED_ShowChinese(24,48,2,16,1);

OLED_ShowChinese(40,48,3,16,1);

OLED_Refresh();

uartSendString("SL-W-TRS-5.5Dx Demo program ");

while(1) {

key = drv_key_read();

while(drv_key_read());

if (key) {

run = (run)?0:1;

}

if (run) {

TRS55D_read();

OLED_Refresh();

}

delay_ms(20);

}

//////////////////////////////////////////////////////////////////////////////////////////////////////

//trs55d.h

//////

#ifndef _TRS55D_H_

#define _TRS55D_H_

#include

#define TRS55D_NORMAL_Tobj_MSB_R 0x10

#define TRS55D_NORMAL_Tobj_CSB_R 0x11

#define TRS55D_NORMAL_Tobj_LSB_R 0x12

#define TRS55D_NORMAL_TEMP_MSB_R 0x16

#define TRS55D_NORMAL_TEMP_CSB_R 0x17

#define TRS55D_NORMAL_TEMP_LSB_R 0x18

#define TRS55D_NORMAL_DATA1_MSB_R 0x19

#define TRS55D_NORMAL_DATA1_CSB_R 0x1A

#define TRS55D_NORMAL_DATA1_LSB_R 0x1B

#define TRS55D_NORMAL_DATA2_MSB_R 0x1C

#define TRS55D_NORMAL_DATA2_CSB_R 0x1D

#define TRS55D_NORMAL_DATA2_LSB_R 0x1E

#define TRS55D_RAW_DATA1_MSB_R 0x22

#define TRS55D_RAW_DATA1_CSB_R 0x23

#define TRS55D_RAW_DATA1_LSB_R 0x24

#define TRS55D_RAW_DATA2_MSB_R 0x25

#define TRS55D_RAW_DATA2_CSB_R 0x26

#define TRS55D_RAW_DATA2_LSB_R 0x27

#define TRS55D_RAW_TEMP_MSB_R 0x28

#define TRS55D_RAW_TEMP_CSB_R 0x29

#define TRS55D_RAW_TEMP_LSB_R 0x2A

#define ADDR_TRS55D 0xFE //(0x7F << 1)

#define _STATUS_DRDY_ 0x01 void TRS55D_read(void);

#endif

//////////////////////////////////////////////////////////////////////////////////////////////////////

// trs55d.c

//////

#include

#include "drv_i2c.h"

#include "trs55d.h"

#include "body_temp.h"

extern uint8_t uartSendString(const char* buf);

extern void OLED_ShowString(uint8_t x,uint8_t y, const char *chr,uint8_t size1,uint8_t mode);

extern void OLED_ShowBNum(uint8_t x,uint8_t y,float num,uint8_t len,

uint8_t size2,uint8_t mode); uint8_t TRS55D_IIC_Read(uint8_t addr_dev, uint8_t addr_reg,

uint8_t *buf, uint16_t count)

{

uint8_t ret;

uint8_t ackflag;

uint16_t i = 0;

drv_i2c_start();

drv_i2c_select_dev(addr_dev,DRV_I2C_OPWR);

drv_i2c_writebyte(addr_reg);

drv_i2c_start();

drv_i2c_select_dev(addr_dev,DRV_I2C_OPRD);

for(i = 0; i < count; i ++) { ackflag = (i < (count-1)) ? 1:0; buf[i]

= drv_i2c_readbyte(ackflag);

}

drv_i2c_stop();

return ret;

}

void TRS55D_IIC_Write(uint8_t addr_dev, uint8_t addr_reg, uint8_t *buf, uint16_t count)

{

uint16_t i = 0;

drv_i2c_start();

drv_i2c_select_dev(addr_dev,DRV_I2C_OPWR);

drv_i2c_writebyte(addr_reg);

for (i = 0; i < count; i ++)

{ drv_i2c_writebyte(buf[i]);

}

drv_i2c_stop();

}

typedef union{

int16_t i16;

uint16_t u16;

struct {

uint8_t u8l;

uint8_t u8h;

}un;

}uu16_t;

typedef union{

int32_t i32;

struct {

uint8_t u8b0;

uint8_t u8b1;

uint8_t u8b2;

uint8_t u8b3;

}un;

}uu32_t;

static char buffer[264];

uu32_t tobj, tamb_cal;

uu32_t vtp_cor;

float vtp_uv_f = 0.0;

float vtp_cor_f = 0.0;

float tambf = 0.0; float tobjf = 0.0;

float tbdyf = 0.0;

void TRS55D_read(void)

{

uint8_t rbuf[4];

uint8_t raddr,rdat;

uint8_t waddr = 0x0, wdat = 0x0;

int timeout=0;

waddr = 0x30;

wdat = 0x09;

TRS55D_IIC_Write(ADDR_TRS55D, waddr, &wdat,1);

//start conversion delay_ms(100);

// waite for conversion over

raddr = 0x03;

do {

TRS55D_IIC_Read (ADDR_TRS55D, raddr, &rdat,1);

} while(((rdat == 0xFF) || (!(rdat & 0x30))) && timeout++ < 200);

raddr = 0x02;

do {

TRS55D_IIC_Read (ADDR_TRS55D, raddr, &rdat,1);

} while(((rdat == 0xFF) || (!(rdat & 0x0B))) && timeout++ < 200);

// voltage value after calibration

raddr = TRS55D_NORMAL_DATA1_MSB_R;

TRS55D_IIC_Read (ADDR_TRS55D, raddr,&rbuf[0],3);

vtp_cor.un.u8b2 = rbuf[0];

vtp_cor.un.u8b1 = rbuf[1];

vtp_cor.un.u8b0 =rbuf[2];

if (vtp_cor.un.u8b2 & 0x80) { vtp_cor.un.u8b3 = 0xFF;

}else {

vtp_cor.un.u8b3 = 0x00;

// vtp after corrected

}

vtp_cor_f = (float)vtp_cor.i32/524288.0;

vtp_cor_f *= 1000;

// ambient temperature value after calibration

raddr = TRS55D_NORMAL_TEMP_MSB_R;

TRS55D_IIC_Read (ADDR_TRS55D,raddr,&rbuf[0],3);

tamb_cal.un.u8b2 = rbuf[0];

tamb_cal.un.u8b1 =rbuf[1];

tamb_cal.un.u8b0 =rbuf[2];

tambf = (float)tamb_cal.i32 / 16384.0; // ambient temperature

// object(surface) temperature after calibration

raddr = TRS55D_NORMAL_Tobj_MSB_R;

TRS55D_IIC_Read (ADDR_TRS55D,raddr,&rbuf[0],3);

tobj.un.u8b2 = rbuf[0]; tobj.un.u8b1 = rbuf[1];

tobj.un.u8b0 =rbuf[2]; tobjf = (float)tobj.i32 / 16384.0;

// object(surface) temperature

// get bodytemp

tbdyf = get_body_temp(tambf,tobjf); // get bodytemp

// display on uart sprintf(buffer, "tamb = %.2f, vtp_cor = %.2f, tobj = %.2f, tbdy = %.2f ", tambf, vtp_cor_f, tobjf, tbdyf); uartSendString(buffer);

// display on oled

float vals[4] = {tambf, vtp_cor_f, tobjf, tbdyf+0.05};

OLED_ShowBNum (64, 0, vals[0], 4, 16, 1); // Tamb

OLED_ShowBNum (48, 16, vals[1], 6, 16, 1); // vtp

OLED_ShowString(112,16, "uv",16, 1);

OLED_ShowBNum (64, 32, vals[2], 4, 16, 1); // Tobj

OLED_ShowBNum (64, 48, vals[3], 4, 16, 1); // Tbdy

}

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