From b009a46e62b89959965ad24cda242282fcb03f1668dc1230c672c747e05dba00 Mon Sep 17 00:00:00 2001
From: Minimons <morten.g.hermansen@gmail.com>
Date: Sat, 14 Feb 2026 18:39:23 +0100
Subject: [PATCH] NoIssue: More work - ledsign not responsive

---
 build.gradle.kts                              |  1 +
 .../ledsign/impl/sigmaasc434/SigmaAsc434.java | 75 +++++++++++++++++++
 2 files changed, 76 insertions(+)

diff --git a/build.gradle.kts b/build.gradle.kts
index cdc8f7f..b9f8858 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -33,6 +33,7 @@ dependencies {
     testImplementation("org.junit.jupiter:junit-jupiter")
     testRuntimeOnly("org.junit.platform:junit-platform-launcher")
     compileOnly("org.jetbrains:annotations:26.0.2-1")
+    implementation("com.fazecast:jSerialComm:2.11.4")
 
     implementation("com.r35157.driver:ledsign-api:0.1-dev")
 }
diff --git a/src/main/java/com/r35157/driver/ledsign/impl/sigmaasc434/SigmaAsc434.java b/src/main/java/com/r35157/driver/ledsign/impl/sigmaasc434/SigmaAsc434.java
index 669205a..9e415b9 100644
--- a/src/main/java/com/r35157/driver/ledsign/impl/sigmaasc434/SigmaAsc434.java
+++ b/src/main/java/com/r35157/driver/ledsign/impl/sigmaasc434/SigmaAsc434.java
@@ -2,9 +2,84 @@ package com.r35157.driver.ledsign.impl.sigmaasc434;
 
 import com.r35157.driver.ledsign.LedSign;
 import org.jetbrains.annotations.NotNull;
+import com.fazecast.jSerialComm.*;
+
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.nio.charset.StandardCharsets;
 
 public class SigmaAsc434 implements LedSign {
     @Override
     public void sendCommand(@NotNull byte[] bytes) {
     }
+
+    static void main() throws Exception {
+        try {
+            new SigmaAsc434();
+        } catch(Exception e) {
+            System.out.println(e);
+        }
+    }
+
+    public SigmaAsc434() throws Exception {
+        SerialPort port = SerialPort.getCommPort("/dev/ttyUSB0");
+        port.setComPortParameters(BAUD, 8, SerialPort.ONE_STOP_BIT, SerialPort.NO_PARITY);
+        port.setFlowControl(SerialPort.FLOW_CONTROL_DISABLED);
+        port.setComPortTimeouts(SerialPort.TIMEOUT_WRITE_BLOCKING, 0, 0);
+        port.setDTR();
+        port.setRTS();
+
+        if (!port.openPort()) throw new RuntimeException("Kunne ikke åbne porten");
+
+        try (OutputStream out = port.getOutputStream()) {
+            long ts = System.currentTimeMillis();
+            //// 1) Sync (parser reset)
+            //for (int i = 0; i < 20; i++) {
+            //    out.write(0xAA);
+            //}
+//
+            //// 2) Start command
+            //out.write(0xBB);
+//
+            //// 3) Program select: A
+            //out.write(0xAF);
+            //out.write('A');   // 0x41
+//
+            //// 4) Text: rød på sort
+            //int RED_ON_BLACK = 0x01;
+//
+            //String text = "A";
+            //for (byte b : text.getBytes(StandardCharsets.US_ASCII)) {
+            //    //out.write(RED_ON_BLACK);
+            //    out.write(b);
+            //}
+//
+            //// 5) End command
+            //out.write(0xBF);
+            //out.write(0xB1);
+
+            for (int i = 0; i < 10; i++) {
+                out.write(0xAA);
+            }
+
+            out.write(0xBB);
+            out.write(0xAF); out.write(0x41);
+            out.write(0x01); out.write(0x54);
+            out.write(0x01); out.write(0x45);
+            out.write(0x01); out.write(0x53);
+            out.write(0x01); out.write(0x54);
+            out.write(0xBF); out.write(0xB1);
+
+            out.flush();
+            System.out.println("@@@ DONE in " + (System.currentTimeMillis() - ts) + "ms @@@");
+        } finally {
+            port.closePort();
+        }
+    }
+
+    //private static final int BAUD = 2400;
+    //private static final int BAUD = 4800;
+    //private static final int BAUD = 9600;
+    //private static final int BAUD = 19200;
+    private static final int BAUD = 115200;
 }