From cc720a7a240bab9fe3e3063d7d99155ab50ac59d Mon Sep 17 00:00:00 2001
From: jgromes <jan.gromes@gmail.com>
Date: Sun, 20 Oct 2024 14:25:27 +0100
Subject: [PATCH] [SX127x] Added reset to home channel to FHSS examples (#1266)

---
 examples/SX127x/SX127x_Receive_FHSS/SX127x_Receive_FHSS.ino   | 4 ++++
 examples/SX127x/SX127x_Transmit_FHSS/SX127x_Transmit_FHSS.ino | 3 ++-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/examples/SX127x/SX127x_Receive_FHSS/SX127x_Receive_FHSS.ino b/examples/SX127x/SX127x_Receive_FHSS/SX127x_Receive_FHSS.ino
index 7785a173..ede24586 100644
--- a/examples/SX127x/SX127x_Receive_FHSS/SX127x_Receive_FHSS.ino
+++ b/examples/SX127x/SX127x_Receive_FHSS/SX127x_Receive_FHSS.ino
@@ -86,6 +86,7 @@ void setup() {
 
   // set hop period in symbols
   // this will also enable FHSS
+  Serial.print(F("[SX1278] Setting hopping period ... "));
   state = radio.setFHSSHoppingPeriod(9);
   if (state == RADIOLIB_ERR_NONE) {
     Serial.println(F("success!"));
@@ -153,6 +154,9 @@ void loop() {
     // reset the counter
     hopsCompleted = 0;
 
+    // return to home channel before the next transaction
+    radio.setFrequency(channels[0]);
+
     // put the module back to listen mode
     radio.startReceive();
 
diff --git a/examples/SX127x/SX127x_Transmit_FHSS/SX127x_Transmit_FHSS.ino b/examples/SX127x/SX127x_Transmit_FHSS/SX127x_Transmit_FHSS.ino
index 5c2297db..d7210af6 100644
--- a/examples/SX127x/SX127x_Transmit_FHSS/SX127x_Transmit_FHSS.ino
+++ b/examples/SX127x/SX127x_Transmit_FHSS/SX127x_Transmit_FHSS.ino
@@ -98,6 +98,7 @@ void setup() {
 
   // set hop period in symbols
   // this will also enable FHSS
+  Serial.print(F("[SX1278] Setting hopping period ... "));
   state = radio.setFHSSHoppingPeriod(9);
   if (state == RADIOLIB_ERR_NONE) {
     Serial.println(F("success!"));
@@ -147,7 +148,7 @@ void loop() {
     hopsCompleted = 0;
 
     // return to home channel before the next transaction
-    radio.setFrequency(channels[radio.getFHSSChannel() % numberOfChannels]);
+    radio.setFrequency(channels[0]);
 
     // wait a second before transmitting again
     delay(1000);