Implement a client for "Bauhn" brand 433Mhz radio-control switches,

Makefile

@@ -1,7 +1,10 @@
-all: send
+all: send send_bauhn
 
 send: RCSwitch.o send.o
-	$(CXX) $(CXXFLAGS) $(LDFLAGS) $+ -o $@ -lwiringPi
+	$(CXX) $(CXXFLAGS) $(LDFLAGS) $+ -o $@ -lwiringPi -lpthread
+
+send_bauhn: RCSwitch.o send_bauhn.o
+	$(CXX) $(CXXFLAGS) $(LDFLAGS) $+ -o $@ -lwiringPi -lpthread
 
 clean:
 	$(RM) *.o send

bauhn_codes.h

@@ -0,0 +1,25 @@
+/*
+ * Off and On codes for Bauhn (Aldi) remote power sockets
+ *
+ * The units auto-pair to the remote on first use.
+ * Use the arduino rc-switch ReceiveDemo program to
+ * find out the codes that your individual remotes send,
+ * then edit bauhn_codes.h to set the codes for your units.
+ *
+ */
+
+#define NUM_SETS 1
+
+unsigned long bauhn_codes[NUM_SETS][5][2] = {
+    { // first set
+        { 3831040116UL, 3831039096UL }, // all-off all-on
+        { 3831039866UL, 3831041906UL }, // 1-off 1-on
+        { 3831038846UL, 3831040886UL }, // 2-off 2-on
+        { 3831039353UL, 3831041393UL }, // 3-off 3-on
+        { 3831039611UL, 3831041651UL }  // 4-off 4-on
+    }
+    // ,{ // second set here if any
+    //     { code, code }, etc
+    //  }
+};
+

send_bauhn.cpp

@@ -0,0 +1,87 @@
+/*
+ * Bauhn (aldi) wireless power switch control.
+ *
+ * This program sends on/off codes for an inexpensive 4-unit remote power
+ * switch set sold by Aldi, replicating the ability of the supplied remote which
+ * has separate on and off buttons for each of 4 units,
+ * and a 5th pair for all-on/all-off.
+ *
+ * Usage: sudo ./send_bauhn <command> <unit> <set>
+ *
+ * Command is 0 for turn-off and 1 for turn-on (or the words 'off' or 'on')
+ * Unit is 0 for all units (or 'all'), or 1-4 for individual unit
+ * Set is needed if you have more than one set of outlets.
+ *
+ * If arguments are omitted, the defaults are
+ *    command=ON unit=ALL set=1
+ *
+ */
+
+#include "RCSwitch.h"
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+/*
+ * Set the TRANSMIT_PIN here
+ * see https://projects.drogon.net/raspberry-pi/wiringpi/pins/
+ * for pin mapping of the raspberry pi GPIO connector
+ */
+#define TRANSMIT_PIN 0
+
+/*
+ * edit bauhn_codes.h to set the codes for your remote(s)
+ */
+#include "bauhn_codes.h"
+
+int main(int argc, char *argv[]) {
+
+    int command = 1;
+    int unit = 0;
+    int set = 1;
+    unsigned long code;
+
+    if (wiringPiSetup () == -1) {
+            printf("WiringPi setup failed\n");
+            exit(1);
+    }
+
+    if (argc > 1) {
+            if (strcasecmp(argv[1], "on") == 0) command = 1;
+            else if (strcasecmp(argv[1], "off") == 0) command = 0;
+            else command = atoi(argv[1]);
+    }
+    if ((command < 0) || (command > 1)) {
+            printf("Invalid command value, expected [0,off,1,on]\n");
+            exit(1);
+    }
+    if (argc > 2) {
+            if (strcasecmp(argv[2], "all") == 0) unit = 0;
+            else unit = atoi(argv[2]);
+    }
+    if ((unit < 0) || (unit > 4)) {
+            printf("Invalid unit value, expected [0,4]\n");
+            exit(1);
+    }
+    if (argc > 3) {
+            set = atoi(argv[3]);
+    }
+    if ((set < 1) || (set > NUM_SETS)) {
+            printf("Invalid set value, expected [0,4]\n");
+            exit(1);
+    }
+
+    printf("sending command %d to unit %d of set %d\n", command, unit, set);
+
+    RCSwitch mySwitch = RCSwitch();
+    mySwitch.enableTransmit(TRANSMIT_PIN);
+
+    code = bauhn_codes[set-1][unit][command];
+    printf("    transmit code %lu\n", code);
+
+    mySwitch.setProtocol(1);
+    mySwitch.setRepeatTransmit(14);
+    mySwitch.send(code, 32);
+
+    return 0;
+}