Differences

This shows you the differences between two versions of the page.

--- user:kluong:feature_idea_-_staging_environment [2021/10/22 15:00]
kluong [Gateway - testing changes]
+++ user:kluong:feature_idea_-_staging_environment [2021/10/23 17:41]
kluong [Gateway - testing changes]
@@ Line 279: / Line 279: @@
 ==== Gateway - testing changes ====
-It's not necessarily practical to have hardware to test with all of the time and often hardware might not be available anyways. Luckily, with software we can work around this.
 Options for testing
@@ Line 289: / Line 287: @@
   * Connect the gateway to a "fake" xbee virtually, using a pty and another script
   * Mock out the serial device completely in python
+It's not necessarily practical to have hardware to test with all of the time and often hardware might not be available anyways. Luckily, with software we can work around this.
+**Note: development for the gateway should generally be done in a linux-based environment.**
+You can make a "fake" xbee network using the following python script:
+<code>
+import os
+import errno
+import time
+def symlink_force(target, link_name):
+    try:
+        os.symlink(target, link_name)
+    except OSError as e:
+        if e.errno == errno.EEXIST:
+            os.remove(link_name)
+            os.symlink(target, link_name)
+        else:
+            raise e
+def valid_packets():
+    packets = {}
+    packets['heartbeat'] = "\x7e\x00\x16\x90\x00\x7d\x33\xa2\x00\x40\xe6\x4b\x5e\x03\xfd\x01\x00\x00\xff\xff\xf0\xfa\x23\x00\x2b\x02\xb2"
+    packets['apple'] = "\x7e\x00\x22\x90\x00\x7d\x33\xa2\x00\x40\x9f\x27\xa7\x29\x6c\x01\x01\x00\xff\xff\x80\x6f\x69\x3d\x06\x0f\x71\x7d\x33\x5a\x8a\x01\x00\x76\x01\x22\x00\x6e\x09\x55"
+    packets['cranberry'] = "\x7e\x00\x22\x90\x00\x7d\x33\xa2\x00\x41\x25\xe5\x88\x0c\x83\x01\x02\x00\xff\xff\x7c\xf3\x05\x00\xba\x0f\x5c\x08\x05\x00\x20\x73\x3b\x00\xdd\x8b\x01\x00\x7a"
+    packets['dragonfruit'] = "\x7e\x00\x24\x90\x00\x7d\x33\xa2\x00\x40\xe6\x72\x7d\x5e\x30\x18\x01\x03\x00\xff\xff\x30\xc8\x07\x00\x6b\x0d\xf4\x00\x06\x00\x00\x00\xb6\x72\x37\x00\xfe\x8b\x01\x00\x00"
+    packets['snapdragon'] = "\x7e\x00\x22\x90\x00\x7d\x33\xa2\x00\x40\xa3\x53\x7d\x5e\x20\x9c\x01\x04\x00\xff\xff\x12\xe4\x49\x00\xca\x0d\x44\x0c\x2c\x31\x01\x00\x2f\x01\x34\x00\x64\x00\xbb"
+    return packets
+master_fd, slave_fd = os.openpty()
+symlink_force(os.ttyname(slave_fd), '/tmp/fakexbee')
+packets = valid_packets()
+while True:
+    for key in packets:
+        os.write(master_fd, bytes(packets[key]))
+        time.sleep(1)
+</code>