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();
}
-
-
--
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