The first satellite transmission was successful (and lesson full). \nThe message “toto” was sent from the modem to the web site using the \nsatellite gateway.\n<\/p>\n\n\n\n
As usual, some lessons have been learned in the process. <\/p>\n\n\n\n
In short the 9602 Iridium unit is sometimes slow to respond, it seems useless to poll it, say, every 10 seconds to get the CSQ (radio signal strength) for example, because sometimes it takes more than that to get a reply from the modem. Furthermore, I’ve realized the modem doesn’t implement a logic of retrying a failed transmission (if no satellite was visible when the transmission was attempted, typically), in that case, the modem just return a “transmission failed” status, and it’s up to you to retry. Until now, the logic in the application was: try to send a log (telemetry) message through the modem every k seconds. I must now do something a bit more subtle along the line: <\/p>\n\n\n\n
On a more mundane level, the GPS time has been connected to the logger module, allowing timestamped logs.<\/p>\n","protected":false},"excerpt":{"rendered":"