From 4d169139e964884e30cc6b24153a783964cf2eb8 Mon Sep 17 00:00:00 2001
From: "Matthias P. Braendli" <matthias.braendli@mpb.li>
Date: Thu, 13 Jul 2023 11:46:51 +0200
Subject: Update i-gate

---
 python/igate.py | 39 +++++++++++++++++++++++++++++++--------
 1 file changed, 31 insertions(+), 8 deletions(-)

(limited to 'python')

diff --git a/python/igate.py b/python/igate.py
index 9466304..91edbcc 100755
--- a/python/igate.py
+++ b/python/igate.py
@@ -14,6 +14,7 @@ import socket
 import struct
 import time
 
+import requests
 import busio
 from digitalio import DigitalInOut, Direction, Pull
 import board
@@ -23,9 +24,14 @@ import adafruit_rfm9x
 # For APRS-IS
 APRS_IS_SERVER = "france.aprs2.net"
 APRS_IS_PORT = 8080
-#APRS_IS_PORT = 14580
 CALLSIGN = "HB9EGM-10"
-PASSCODE = "22681"
+
+# 46°23.07' N 6°13.28'
+LATITUDE = "4623.07N"
+LONGITUDE = "00613.28E"
+COMMENT = "RPi RFM98W Python igate, https://mpb.li/git/lora-aprs-hb9egm/tree/python/igate.py"
+
+PASSCODE = "17832"
 REPORTING_DISTANCE = "10"
 
 def decode_encoded_position_report(packet):
@@ -48,14 +54,13 @@ def send_frame_to_aprs_is(frame):
     headers = { "Accept": "text/plain", "Content-Type": "application/octet-stream" }
 
     aprsauth = f"user {CALLSIGN} pass {PASSCODE} vers HB9EGM_lorapy 1.0 filter t/m/{CALLSIGN}/{REPORTING_DISTANCE}\n";
+    data = aprsauth.encode() + frame
 
-    # Prefix igate path
-    path, _, message = frame[3:].partition(b":")
-    new_frame = path + b",qAO," + CALLSIGN.encode() + b":" + message + b"\n"
-    data = aprsauth.encode() + new_frame
+    print(data)
 
     r = requests.post(f"http://{APRS_IS_SERVER}:{APRS_IS_PORT}/", data=data, headers=headers)
     print(f"{r.status_code} {r.content.decode()}")
+    r.raise_for_status()
 
 
 led_yellow = DigitalInOut(board.D23)
@@ -66,6 +71,7 @@ led_green.direction = Direction.OUTPUT
 led_counter = 0
 
 def update_leds():
+    global led_counter
     led_counter = (led_counter + 1) % 4
 
     led_green.value = (led_counter & 0x1) != 0
@@ -79,6 +85,8 @@ spi = busio.SPI(board.SCK, MOSI=board.MOSI, MISO=board.MISO)
 
 baudrate = 5000000
 
+last_beacon_time = time.time()
+
 # see https://docs.circuitpython.org/projects/rfm9x/en/latest/
 try:
     rfm9x = adafruit_rfm9x.RFM9x(spi, cs, reset, 433.775, baudrate=baudrate, preamble_length=8)
@@ -107,14 +115,29 @@ try:
             if b":!/" in packet:
                 print(decode_encoded_position_report(packet))
                 try:
-                    send_frame_to_aprs_is(packet)
+                    # Prefix igate path
+                    path, _, message = packet[3:].partition(b":")
+                    new_frame = path + b",qAO," + CALLSIGN.encode() + b":" + message + b"\n"
+                    send_frame_to_aprs_is(new_frame)
                 except Exception as ex:
-                    print("Error sending to APRS-IS")
+                    print("Error sending position report to APRS-IS")
                     print(ex)
 
             print(" RSSI: {}".format(rfm9x.last_rssi))
             print()
 
             update_leds()
+
+        now = time.time()
+
+        if last_beacon_time + 1800 < now:
+            last_beacon_time = now
+            packet = f"{CALLSIGN}>APLRG1,qAC:={LATITUDE}L{LONGITUDE}&{COMMENT}"
+            try:
+                send_frame_to_aprs_is(packet.encode())
+            except Exception as ex:
+                print("Error sending beacon to APRS-IS")
+                print(ex)
+
 except RuntimeError as error:
     print(f'RFM9x Error: {error}')
-- 
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