From f83c35b2d7017d9923dab4be4009a4f076f363e9 Mon Sep 17 00:00:00 2001
From: Francois Ramu <francois.ramu@st.com>
Date: Tue, 4 Jul 2023 16:50:36 +0200
Subject: [PATCH] STM32duinoLoraWan new basic example sending calendar packet

Modifying the basic.ino to format the Tx packet with the current
calendar Date and Time
Get the RTC as an external object initialized in MIX mode

Signed-off-by: Francois Ramu <francois.ramu@st.com>
---
 examples/Basic/Basic.ino | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/examples/Basic/Basic.ino b/examples/Basic/Basic.ino
index 4092116..02b558e 100644
--- a/examples/Basic/Basic.ino
+++ b/examples/Basic/Basic.ino
@@ -2,6 +2,7 @@
  * This is a very basic example that demonstrates how to configure the
  * library, join the network, send regular packets and print any
  * downlink packets received.
+ * This example is using the RTC in MIX (binary and BCD) mode
  *
  * Revised BSD License - https://spdx.org/licenses/BSD-3-Clause.html
  */
@@ -11,6 +12,10 @@ STM32LoRaWAN modem;
 
 static const unsigned long TX_INTERVAL = 60000; /* ms */
 unsigned long last_tx = 0;
+uint8_t payload[27]; /* packet to be sent */
+
+/* Get the rtc object */
+extern STM32RTC &rtc;
 
 void setup()
 {
@@ -29,11 +34,20 @@ void setup()
     Serial.println("Join failed");
     while (true) /* infinite loop */;
   }
+
+  /* set the calendar */
+  rtc.setTime(15, 30, 58);
+  rtc.setDate(04, 07, 23);
+
 }
 
 void send_packet()
 {
-  uint8_t payload[] = {0xde, 0xad, 0xbe, 0xef};
+  /* prepare the Tx packet : get date and format string */
+  sprintf((char *)payload, "%02d/%02d/%04d - %02d:%02d:%02d",
+          rtc.getMonth(), rtc.getDay(), 2000 + rtc.getYear(),
+          rtc.getHours(), rtc.getMinutes(), rtc.getSeconds());
+
   modem.setPort(10);
   modem.beginPacket();
   modem.write(payload, sizeof(payload));