สวัสดีครับ ผมใช้บอร์ด DEVIO NB-DEVKIT I กับโมดูลจอ 4.2 inch E-paper module b และ SD Card Module ที่มีการเชื่อมต่อแบบ SPI ครับพยามยามลองวิธีแก้ตามหลายๆตัวอย่างแล้วก็ไม่เป็นผลเลยครับ พอจะมีทางทำให้สามารถใช้งานร่วมกันได้ไหมครับ
#การต่อสายตามรูปนี้เลยครับ
#โค้ดครับ
/* Includes ------------------------------------------------------------------*/
#include "FS.h"
#include "SD.h"
#include "SPI.h"
/*--------E-Paper -----------*/
#include "DEV_Config.h"
#include "EPD.h"
#include "GUI_Paint.h"
#include "imagedata.h"
#include "SENSOR_BLACK.h"
#include "SENSOR_RED.h"
/*--------------------------*/
float temperature = 0.00;
float pressure = 0.00;
float voltage = 0.00;
float current = 0.00;
/*--------------------------*/
void setup() {
Serial.begin(115200);
if (!SD.begin()) {
Serial.println("Card Mount Failed");
return;
}
/*แสดงรูปภาพโชว์ตอนเริ่มการทำงานของจอ E-Paper*/
EpaperLogo();
delay(500);
}
void loop() {
temperature = float(random(0, 100));
pressure = float(random(0, 100));
voltage = float(random(0, 100));
current = float(random(0, 100));
Serial.print("----------------------------------------------\r\n");
Serial.print(" Temperature = "); Serial.print(temperature); Serial.println(" C ");
Serial.print(" Pressure = "); Serial.print(pressure); Serial.println(" Bar ");
Serial.print(" Current = "); Serial.print(current); Serial.println(" A ");
Serial.print(" Voltage = "); Serial.print(voltage); Serial.println(" V ");
Serial.print("----------------------------------------------\r\n");
epaperSensor();
Serial.println("Show Data on E-paper........OK");
sendSDcard();
Serial.println("Send Data to SD card........OK");
delay(5000);
}
[/codebyte]
#ส่วนฟังก์ชั่นต่างๆครับ
[codebyte language=cpp]
/*------------------------------------------- SD CARD -----------------------------------------------*/
void appendFile(fs::FS &fs, const char * path, const char * message) {
Serial.printf("Appending to file: %s\n", path);
File file = fs.open(path, FILE_APPEND);
if (!file) {
Serial.println("Failed to open file for appending");
return;
}
if (file.print(message)) {
Serial.println("Message appended");
} else {
Serial.println("Append failed");
}
file.close();
}
/*------------------------------------------------------------------------------------------------------*/
/*------------------------------------------ LOGO on E-PAPER---------------------------------*/
void EpaperLogo() {
DEV_Module_Init();
EPD_4IN2B_V2_Init();
EPD_4IN2B_V2_Clear();
DEV_Delay_ms(500);
UBYTE *BlackImage, *RYImage; // Red or Yellow
UWORD Imagesize = ((EPD_4IN2B_V2_WIDTH % 8 == 0) ? (EPD_4IN2B_V2_WIDTH / 8 ) : (EPD_4IN2B_V2_WIDTH / 8 + 1)) * EPD_4IN2B_V2_HEIGHT;
if ((BlackImage = (UBYTE *)malloc(Imagesize)) == NULL) {
printf("Failed to apply for black memory...\r\n");
while (1);
}
if ((RYImage = (UBYTE *)malloc(Imagesize)) == NULL) {
printf("Failed to apply for red memory...\r\n");
while (1);
}
printf("NewImage:BlackImage and RYImage\r\n");
Paint_NewImage(BlackImage, EPD_4IN2B_V2_WIDTH, EPD_4IN2B_V2_HEIGHT, 0, WHITE);
Paint_NewImage(RYImage, EPD_4IN2B_V2_WIDTH, EPD_4IN2B_V2_HEIGHT, 0, WHITE);
//Select Image
Paint_SelectImage(BlackImage);
Paint_Clear(WHITE);
Paint_SelectImage(RYImage);
Paint_Clear(WHITE);
#if 1 // show image for array
printf("1.show LOGO \r\n");
EPD_4IN2B_V2_Display(gImage_4in2bc_b, gImage_4in2bc_ry);
DEV_Delay_ms(3000);
#endif
}
/*------------------------------------------------------------------------------------------------------*/
/*------------------------------------ SENSOR DATA to SD card-----------------------------*/
void sendSDcard() {
//============================================================
String dataString = "";
//============================================================
dataString += "\n";
dataString += String(temperature);
dataString += " C ";
dataString += ",";
dataString += String(current);
dataString += " A ";
dataString += ",";
dataString += String(voltage);
dataString += " V ";
dataString += ",";
dataString += String(pressure);
dataString += " Bar ";
appendFile(SD, "/MP03_Report.CSV", dataString.c_str());
}
/*--------- SENSOR on E-PAPER ---------*/
void epaperSensor() {
UBYTE *BlackImage, *RYImage;
UWORD Imagesize = ((EPD_4IN2B_V2_WIDTH % 8 == 0) ? (EPD_4IN2B_V2_WIDTH / 8 ) : (EPD_4IN2B_V2_WIDTH / 8 + 1)) * EPD_4IN2B_V2_HEIGHT;
if ((BlackImage = (UBYTE *)malloc(Imagesize)) == NULL) {
printf("Failed to apply for black memory...\r\n");
while (1);
}
if ((RYImage = (UBYTE *)malloc(Imagesize)) == NULL) {
printf("Failed to apply for red memory...\r\n");
while (1);
}
#if 1
//1. Black Image
Paint_SelectImage(BlackImage);
Paint_Clear(WHITE);
//-------------------------------------------
Paint_DrawBitMap(gImage_SENSOR_BLACK);
//-------------------------------------------
Paint_DrawString_EN(110, 20, "MP03.PROJECT", &Font24, WHITE, BLACK);
Paint_DrawString_EN(50, 80, "Temperature(C):", &Font20, WHITE, BLACK);
Paint_DrawString_EN(50, 140, "Pressure(Bar):", &Font20, WHITE, BLACK);
Paint_DrawString_EN(50, 200, "Current(A):", &Font20, WHITE, BLACK);
Paint_DrawString_EN(50, 260, "Voltage(V):", &Font20, WHITE, BLACK);
Paint_DrawString_EN(355, 80, "C", &Font20, WHITE, BLACK);
Paint_DrawString_EN(350, 140, "Bar", &Font20, WHITE, BLACK);
Paint_DrawString_EN(350, 200, "A", &Font20, WHITE, BLACK);
Paint_DrawString_EN(350, 260, "V", &Font20, WHITE, BLACK);
Paint_DrawPoint(350, 80, BLACK, DOT_PIXEL_3X3, DOT_STYLE_DFT);
/*2.red image*/
printf(" - 2.1 Draw red image\r\n");
Paint_SelectImage(RYImage);
Paint_Clear(WHITE);
//-------------------------------------------
Paint_DrawBitMap(gImage_SENSOR_RED);
//-------------------------------------------
Paint_DrawNum(270, 80, temperature, &Font20, BLACK, WHITE); //////////////////////////////////////////////////
Paint_DrawNum(280, 140, pressure, &Font20, BLACK, WHITE);
Paint_DrawNum(280, 200, current, &Font20, BLACK, WHITE);
Paint_DrawNum(280, 260, voltage, &Font20, BLACK, WHITE);
printf("EPD_Display\r\n");
EPD_4IN2B_V2_Display(BlackImage, RYImage);
DEV_Delay_ms(5000);
#endif
}
