After various memory exercises, then back to GPS to get UBlox working. UBlox is working. TODO: start libraries, downplay SD Card as we can use memory for interim logging

exercises/17_Flash/scripts/set_build_epoch.py

@@ -0,0 +1,12 @@
+import time
+Import("env")
+
+epoch = int(time.time())
+utc_tag = time.strftime("%Y%m%d_%H%M%S_z", time.gmtime(epoch))
+
+env.Append(
+    CPPDEFINES=[
+        ("FW_BUILD_EPOCH", str(epoch)),
+        ("FW_BUILD_UTC", '\"%s\"' % utc_tag),
+    ]
+)