Hi,
Would like to seek your help and advice on my problem. I have a project where I need to read the serial data from a GSE460 (baud rate 9600, 8 bit, no parity and full delay of 1 second) to an arduino uno and display the data to a 5 digit 7 segment display. All of the hardware now are polished, I used a 5 digit 7 segment common cathode and a transistor led driver (thank you for this forum on helping me with that). My biggest problem is the program. Instead of displaying the value simultaneously and permanently, it is like sequential.
What I mean when the equipment sends " 12345\n\r". The 7 segment display will be "1" then disappear then after a second display "2" then disappear then after a second displays "3" then disppears then after a second displays "4" and then disappears then "5". The display should simultaneously display the 12345 instead of one by one. Please help me check my code. I have posted pictures below since I cannot post a video of how the output is
#include <SevSeg.h> // Include the SevSeg library
#include <SoftwareSerial.h>
SevSeg sevseg; // Initialize the SevSeg object
SoftwareSerial mySerial(A0, A1);
String receivedData = ""; // String to store the received data
long numberValue = 0; // Variable to store the extracted number as a long
void setup() {
mySerial.begin(9600); // Initialize Serial communication
byte hardwareConfig = N_TRANSISTORS;
byte numDigits = 5;
byte digitPins[] = {9, 10, 11, 12, 13};
byte segmentPins[] = {8, 7, 6, 5, 4, 3, 2};
bool resistorsOnSegments = true;
bool updateWithDelaysIn = false;
bool disableDecPoint = true;
sevseg.begin(hardwareConfig, numDigits, digitPins, segmentPins, resistorsOnSegments, updateWithDelaysIn, disableDecPoint);
sevseg.setBrightness(10);
//byte numDigits = 5; // Set the number of digits in your 7-segment display
//byte digitPins[] = {2, 3, 4, 5, 6}; // Specify the digital pins connected to the display digits (A, B, C, D, E)
//byte segmentPins[] = {7, 8, 9, 10, 11, 12, 13}; // Specify the digital pins connected to the display segments (a, b, c, d, e, f, g)
// The following settings can be adjusted as needed
//bool resistorsOnSegments = false; // Set to 'true' if resistors are on the segment pins, otherwise 'false'
//bool updateWithDelays = false; // Set to 'true' to enable update with delays, otherwise 'false'
//bool leadingZeros = true; // Set to 'true' to enable leading zeros, otherwise 'false'
//bool disableDecPoint = true; // Set to 'true' to disable the decimal point, otherwise 'false'
//sevseg.begin(COMMON_CATHODE, numDigits, digitPins, segmentPins, resistorsOnSegments,
// updateWithDelays, leadingZeros, disableDecPoint);
//sevseg.setBrightness(90); // Set the brightness of the display (adjust as needed)
}
void loop() {
if (mySerial.available()) {
char receivedChar = mySerial.read(); // Read a character from the Serial port
// Check if the received character is a valid numerical value ('0'-'9') or a space
if ((receivedChar >= '0' && receivedChar <= '9') || receivedChar == ' ') {
// Skip leading spaces
if (receivedData.length() > 0 || receivedChar != ' ') {
receivedData += receivedChar; // Add the character to the received data String
}
}
// If the received character is a newline '\n', then convert the received data String
// to a long integer and display it on the 7-segment display
else if (receivedChar == '\n' && receivedData.length() > 0) {
numberValue = extractNumberFromData(receivedData); // Convert String to long integer
displayNumberOn7Segment(numberValue); // Display the extracted number on the 7-segment display
receivedData = ""; // Clear the receivedData String for the next number
}
}
}
// Function to extract the number from the String and convert it to a long integer
long extractNumberFromData(String data) {
long extractedNumber = 0;
bool isNegative = false;
int startIndex = 0;
// Check if the first character is a minus sign '-'
if (data.charAt(0) == '-') {
isNegative = true;
startIndex = 1; // Start extracting the number from the second character
}
// Convert the numeric characters into a long integer
for (int i = startIndex; i < data.length(); i++) {
if (data.charAt(i) >= '0' && data.charAt(i) <= '9') {
extractedNumber = extractedNumber * 10 + (data.charAt(i) - '0');
}
}
// Apply the negative sign if applicable
if (isNegative) {
extractedNumber *= -1;
}
return extractedNumber;
}
// Function to display the number on the 7-segment display
void displayNumberOn7Segment(long number) {
sevseg.setNumber(number); // Display the extracted number on the 7-segment display
sevseg.refreshDisplay(); // Refresh the display to show the number
}
