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--- other:other [2024/07/08 08:02] – [Steps] formlab
+++ other:other [2025/04/18 03:23] (current) – [Products] formlab
@@ Line 174: / Line 174: @@
   * [[https://www.bol.com/be/nl/p/mini-nano-v3-0-atmega328p-microcontroller-bord-voor-arduino/9200000112027528/|Arduino nano]]
   * Radio receiver & transmitter set (433,92Mhz)
+    * Search on Amazon for something like '433MHz RF Wireless Transmitter & Receiver Module Kit for Arduino'
 ==== Info ====
@@ Line 217: / Line 218: @@
   * Open the Arduino Terminal and press On and Off on the remote
   * I got back the following info
-    * ON-signal:<code>
+    * ON-signal:
       * Code: 30980307 Period: 250
       * unit: 0
       * groupBit: 0
-      * switchType: 1</code>
+      * switchType: 1
     * OFF-signal
       * Code: 30980307 Period: 250
@@ Line 227: / Line 228: @@
       * groupBit: 0
       * switchType: 0
+  * Open now the example sketch 'Lightshow'
+    * Change the line: NewRemoteTransmitter transmitter(**123**, 11, 260, 3);\\ to: NewRemoteTransmitter transmitter(**30980307**, 11, 260, 3); <nowiki>// (address, pin, period_microseconds, repeats)</nowiki>
+      * The big number is the received 'code' data from the remote.
+    * Also change the lines in the loop to use only these:
+      * Switch off with: transmitter.sendUnit(0, false);
+      * Switch on  with: transmitter.sendUnit(0, true);
+    * Then upload the sketch to the Arduino and try it out. The remote socket should switch every 5 seconds.
+  * Open the Openbuilds Blackbox and change the Relay Jumper from the M3/M5 command config to the M8 M9 config. The M3 command is already used for setting the servo. See the docs [[https://docs.openbuilds.com/doku.php?id=docs:blackbox-4x:jumper-relay|here]].
+    * Tested successfully: M8 closes the Relay, M9 opens it. The plotter starts with the relay opened.
+This is the code I'm using now:
+<code c++>
+/*
+Plotter auto shutdown 01
+For the Openbuilds Acro pen plotter.
+The Gcode sender (Openbuilds Control) will send the following Gcode sequence after finishing a plot:
+  M8 ; close the relay
+  G4 P0.2 ; wait 20 MS
+  M9 ; open the relay
+The relay is connected with the arduino nano with a cable. This signal can be detected as if it were a button press
+When the arduino received the 'button press', it transmits a code so the remote power socket will switch off.
+I'm using the Bounce2 library for debouncing and the NewRemoteTransmitter library for receiving and transmitting the 433Mhz radio remote signals.
+Formlab
+/07/24
+*/
+#define BUTTON_PIN 3
+#define LED_PIN 13
+// https://github.com/thomasfredericks/Bounce2
+#include <Bounce2.h>
+// Create a debouncer instance
+Bounce2::Button button = Bounce2::Button();
+// https://github.com/1technophile/NewRemoteSwitch/tree/master
+#include <NewRemoteTransmitter.h>
+// Create a transmitter instance
+NewRemoteTransmitter transmitter(30980307, 11, 260, 3);  // address, pin, period_microseconds, repeats
+void setup() {
+  // Button setup
+  button.attach(BUTTON_PIN, INPUT);  // USE EXTERNAL PULL-UP
+  button.interval(5);                // (ms)
+  button.setPressedState(LOW);
+  // LED setup
+  pinMode(LED_PIN, OUTPUT);
+}
+void loop() {
+  button.update();
+  if (button.pressed()) {
+    shutdown();
+  }
+}
+void shutdown() {
+  digitalWrite(LED_PIN, HIGH);
+  delay(100);
+  digitalWrite(LED_PIN, LOW);
+  delay(100);
+  digitalWrite(LED_PIN, HIGH);
+  delay(100);
+  digitalWrite(LED_PIN, LOW);
+  delay(100);
+  digitalWrite(LED_PIN, HIGH);
+  delay(100);
+  digitalWrite(LED_PIN, LOW);
+  delay(100);
+  transmitter.sendUnit(0, false); // switch off unit 0
+}
+</code>