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Sample of LMICPP-Arduino for Arduino Pro mini with deepsleep

Tested with Arduino Pro Mini and RFM95 on EU868 frequencies.

Usage

Work with platformio.

In src directory create a file named lorakeys.h wich contain the keys declared in network (for exemple https://www.thethingsnetwork.org)

Exemple of file:

// Application in string format.
// For TTN issued EUIs the first bytes should be 70B3D5
constexpr char const appEui[] = "70B3D5XXXXXXXXXX";

// Device EUI in string format.
constexpr char const devEui[] = "XXXXXXXXXXXXXXXX";
// Application key in string format.
constexpr char const appKey[] = "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX";

Calibrate deepsleep duration (see below)

Int 1 / Pin 3 is use to wake a with a button linked to ground.

Calibration of deep sleep

During start there is a test of deepsleep time. You need to calibrate it. Use a terminal which print the time the message are receive (YAT for example) and mesure time between message Start Test sleep time. and End Test sleep time. divide this time by the time in Test Time should be : message and ajust sleepAdj acordingly.