ZWay: notification on wake-up events

Z-Wave battery powered devices implement a periodic "wake-up" where it contacts the controller; for the door sensors I am using, I configured the wake-up to happen every 5 minutes.
Now, how to capture this in the ZWay library? It is again the same as for other events: register a callback on a certain "data holder". Here this data holder is found on:

  • device instance level;
  • command class: 132 (wake up);
  • path: "lastWakeup" (there is also another one "lastSleep", so far it is not clear to me which one is the best to use).
Here is a sample code registering a call-back for this event:


 zway_data_acquire_lock(aZWay);
 ZDataHolder dataHolder = zway_find_device_instance_cc_data(aZWay, mDeviceId, 0, COMMAND_CLASS_WAKE_UP, "lastWakeup");
 if (dataHolder != NULL) {
  zway_data_add_callback_ex(aZWay, dataHolder, &aliveCallback, TRUE, this);
 } else {
  cerr << "No data holder for deviceId=" << (int) mDeviceId << endl;
 }
 zway_data_release_lock(aZWay);

Comments

Post a Comment

Popular posts from this blog

ZWay: getting the device list.

Back after a while... and a son! Here is a piece of code that can be used with the latest version of the ZWay library. It makes it possible to retrieve the Z-Wave device list and display the device names and associated XML file (each recognized device can be associated to an XML that contains a bunch of meta-data: name, description etc.). int main(int argc, char ** argv) { ZWay theZWay; ZWError result; memset(&theZWay, 0, sizeof(theZWay)); result = zway_init(&theZWay, "/dev/ttyAMA0", "/home/pi/src/razberry-proxy/config", "/home/pi/src/razberry-proxy/translations", "/home/pi/src/razberry-proxy/ZDDX", stdout, Warning); if (result == NoError) { result = zway_start(theZWay, &terminationCb); if (result == NoError) { printf("Discovering...\n"); result = zway_discover(theZW...
Read more

First steps with the ZWay library

The Z-Wave "RaZberry" installation comes with everything needed to be able to do some custom development in C; everything is installed in the /opt/z-way-server  directory. There, one can find: A set of (documented, nice!) C header files found in /opt/z-way-server/libzway-dev : CommandClassesPublic.h FunctionClassesPublic.h ZDataPublic.h ZDefsPublic.h ZErrors.h ZPlatform.h ZWayLib.h A set of libraries found in /opt/z-way-server/libs : libmicrohttpd.so libv8.so libzwayhttp.so libzwayjs.so libzway.so For the ZWay stack to run properly, it is needed to provide the necessary configuration files. Instead of using these directly from the installation folder, I made a copy in order not to mess up too much with my working/configured setup. The following directories from the ZWay installation folder are needed: config translations ZDDX For experimenting I made a small Makefile in order to build and run. main.out: main.c gcc -I/opt/z-way-server/li...
Read more

Libcurl: perform a REST HTTP PUT

The libcurl library does not provide a clear example on how to issue HTTP PUT operations in a REST context; the examples are mainly about file transfers . For my proxy application this is not really what I need: I want to perform a REST HTTP PUT, keep it simple, meaning without using the "Expect" and "Transfer-Encoding" that libcurl adds by default. After some struggling I discovered that this behavior can be changed by using the following code: CURL * pCurl; struct curl_slist *headers = NULL; headers = curl_slist_append(headers, "Content-Type: application/json "); headers = curl_slist_append(headers, "Content-Length: 12345 "); headers = curl_slist_append(headers, "Expect:"); headers = curl_slist_append(headers, "Transfer-Encoding:"); pCurl = curl_easy_init(); curl_easy_setopt(pCurl, CURLOPT_VERBOSE, 1); curl_easy_setopt(pCurl, CURLOPT_PUT, 1); curl_easy_setopt(pCurl, CURLOPT_URL, " https://your-server.app...
Read more