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--- other:other [2024/07/08 07:43] – [Info] 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 ====
   * [[https://www.instructables.com/Using-an-ESP8266-to-Control-Mains-Sockets-Using-43/|This guide]] used a socket with a different chipset, so this didn't work directly, but it was a good start.
+  * [[https://github.com/vdloo/homelabmanager/blob/master/Documentation/my_power_management.md|This guide]] pointed me to the right library that is compatible with the remote power plug
   * Components
     * Arduino Nano
@@ Line 195: / Line 197: @@
         * In the end I didn't need this info
       * Communication protocol info: https://manual.pilight.org/protocols/433.92/switch/kaku.html
-      * In the end I didn't need this info
+        * In the end I didn't need this info
 ==== Steps ====
+  * Populate breadboard
+    * Put the **Arduino nano** on a breadboard
+    * Plug in the **radio receiver** board (the longer one with 4 pins), so that no pins overlap with the Arduino
+      * Add jumper cables for GND and VCC (use the 5V from the Arduino nano)
+      * There's 2 pins left in the middle on the receiver board, but I think they're the same. Add a jumper from one of the middle pins to pin 2 on the Arduino
+    * Plug in the **radio transmitter** board (the square one), so that no pins overlap with other pins
+      * Connect VCC and Ground
+      * Add a jumper cable from the middle pin to pin 11 on the Arduino
+      * Add a cable from the 2 screw terminals of the relay output port of the OpenBuilds Blackbox to the breadboard and connect one lead to +5V and the other to pin 3. From there, also go to GND via a 10Kohm resistor. This is basically a setup for a button / switch
+  * Pair up the remote to a socket
+    * Plug in the socket to a power strip
+    * With the remote, click "on" 4 times to pair. Now the on - off pair on the remote works with the remote socket.
+  * Install the [[https://github.com/1technophile/NewRemoteSwitch|NewRemoteSwitch]] library
+  * Run the example project 'showreceived Code' on the Arduino
+  * Open the Arduino Terminal and press On and Off on the remote
+  * I got back the following info
+    * ON-signal:
+      * Code: 30980307 Period: 250
+      * unit: 0
+      * groupBit: 0
+      * switchType: 1
+    * OFF-signal
+      * Code: 30980307 Period: 250
+      * unit: 0
+      * 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>
 ===== Docuwiki troubleshooting =====