From 59233d7de089f2d884acacdc3c05397b3a35e9d8 Mon Sep 17 00:00:00 2001 From: null pointer <eol@invalidfile.name> Date: Wed, 3 Jan 2018 19:50:23 +0800 Subject: [PATCH] * add KC-specific notes * implement fix for slow joins https://www.thethingsnetwork.org/forum/t/how-long-is-an-otaa-activation-join-supposed-to-take/5299/7 * code cleanup (minor) --- ttb-otaa.ino.sample | 20 +++++++++++++------- 1 file changed, 13 insertions(+), 7 deletions(-) diff --git a/ttb-otaa.ino.sample b/ttb-otaa.ino.sample index 1f28c32..94986ca 100644 --- a/ttb-otaa.ino.sample +++ b/ttb-otaa.ino.sample @@ -1,14 +1,15 @@ /******************************************************************************* * Copyright (c) 2015 Thomas Telkamp and Matthijs Kooijman - * + * (+KC) Changes 2017 Null Pointer / Kinabalu Coders + * * Permission is hereby granted, free of charge, to anyone * obtaining a copy of this document and accompanying files, * to do whatever they want with them without any restriction, * including, but not limited to, copying, modification and redistribution. * NO WARRANTY OF ANY KIND IS PROVIDED. * - * This example sends a valid LoRaWAN packet with payload "Hello, - * world!", using frequency and encryption settings matching those of + * (+KC) This example sends a valid LoRaWAN packet with a abitrary string + * payload using frequency and encryption settings matching those of * the The Things Network. * * This uses OTAA (Over-the-air activation), where where a DevEUI and @@ -25,7 +26,10 @@ * Multiple devices can use the same AppEUI, but each device has its own * DevEUI and AppKey. * - * Do not forget to define the radio type correctly in config.h. + * (+KC) Use the forked copy of the LMIC arduino library from + * https://github.com/CytronTechnologies/RFM-LoRa-Shield-Examples/ + * arduino-lmic.zip contains the working src/lmic/config.h + * configured for: us915, sx1276_radio * *******************************************************************************/ @@ -149,11 +153,12 @@ void do_send(osjob_t* j){ } void setup() { - Serial.begin(9600); + Serial.begin(115200); Serial.println(F("Starting")); // LMIC init os_init(); + // Reset the MAC state. Session and pending data transfers will be discarded. LMIC_reset(); @@ -163,6 +168,9 @@ void setup() { // Disable link check validation LMIC_setLinkCheckMode(0); + // This tells LMIC to make the receive windows bigger, in case your clock is 1% faster or slower. + LMIC_setClockError(MAX_CLOCK_ERROR * 1 / 100); + // TTN uses SF9 for its RX2 window. LMIC.dn2Dr = DR_SF9; @@ -176,5 +184,3 @@ void setup() { void loop() { os_runloop_once(); } - - -- GitLab