init v0.1

LICENSE

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+This code is released under the DWTW license
+
+This program is free software; you can redistribute it and/or modify it under the terms of the Do What Thou Wilt License.
+
+Boundless Public License
+DO WHAT THOU WILT
+TO PUBLIC LICENSE
+
+Version 2.55
+
+Everyone is permitted to copy and distribute verbatim or modified copies of this license document, and changing it in full or in part is allowed without any restrictions.
+
+TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+0. Do what thou wilt shall be the whole of the Law.
+
+DWTWL – a license with a single requirement: DO WHAT THOU WILT
+
+The license provides more freedom than any other one (such as GPL or BSD) and does not require saving the license text on copying.
+
+DWTWL – an accomplished and eligible license for free text, code and any other symbols (including the software, documentation and artwork).
+
+The license does not contain a "no warranty" clause. DWTWL can be used in countries that do not legally acknowledge the transition to public domain.
+
+Summary:
+
+An author-creator gives their source code to the world for free, without becoming distracted by worldly thinking regarding how and why the others will use it.

README.md

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+8-channel relay on arduino serial control with permanent led blinking
+======
+
+Use 10uF capacitor for disabling autoreset on serial connection
+
+![arduino-8-relay](https://dev.ussr.win/microcontrollers/arduino-8-relay/raw/branch/master/arduino-8-relay_bb.png)

arduino-8-relay.ino

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+// 8-channel relay on arduino serial control with permanent led blinking
+// v0.1 under dwtwl 2.55
+// ch1 = pin2; ch2 = pin3; ch3 = pin4; ch4 = pin5;
+// ch5 = pin6; ch6 = pin7; ch7 = pin8; ch8 = pin9; led = pin13;
+// send: switch on = 1X; switch off = 2X; get status = 3X;
+// codes: in = init; eX = enabled; dX = disabled; tX = power on; fX = off;
+#include <Thread.h>
+Thread ledThread = Thread();
+
+int incomingNumber = 0;
+
+void setup() {
+  Serial.begin(9600);
+  pinMode(13, OUTPUT);
+  for(int i=2;i<10;i++){
+    pinMode(i, OUTPUT);
+    digitalWrite(i, HIGH);
+  }
+  Serial.println("in");
+
+  ledThread.onRun(ledBlink);
+  ledThread.setInterval(1000);
+}
+
+void ledBlink() {
+  static bool ledStatus = false;
+  ledStatus = !ledStatus;
+  digitalWrite(13, ledStatus);
+}
+
+void loop() {
+  // Thread init:
+  if (ledThread.shouldRun())
+    ledThread.run();
+  
+  if (Serial.available() > 0) {
+    int incomingByte = Serial.read()-48;
+    if (incomingByte>=0 && incomingByte<=9) {
+      incomingNumber=incomingNumber*10+incomingByte;
+    } else {
+      if (incomingNumber>=10 && incomingNumber<=19) {
+        delay(500);
+        int currentPin = incomingNumber - 9;
+        char currentChannel[] = "e0";
+        currentChannel[1] = '0' + (currentPin - 1);
+        digitalWrite(currentPin, LOW);
+        Serial.println(currentChannel);
+        delay(500);
+      }
+      
+      if (incomingNumber>=20 && incomingNumber<=29) {
+        delay(500);
+        int currentPin = incomingNumber - 19;
+        char currentChannel[] = "d0";
+        currentChannel[1] = '0' + (currentPin - 1);
+        digitalWrite(currentPin, HIGH);
+        Serial.println(currentChannel);
+        delay(500);
+      }
+      
+      if (incomingNumber>=30 && incomingNumber<=39) {
+        delay(500);
+        int currentPin = incomingNumber - 29;
+        if (digitalRead(currentPin)==HIGH) {
+          char currentChannel[] = "f0";
+          currentChannel[1] = '0' + (currentPin - 1);
+          Serial.println(currentChannel);
+        } else {
+          char currentChannel[] = "t0";
+          currentChannel[1] = '0' + (currentPin - 1);
+          Serial.println(currentChannel);
+        }
+        delay(500);
+      }
+      incomingNumber = 0;
+    }
+  }
+}