Initial commit

.gitmodules

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+[submodule "GPRS_C_SDK"]
+	path = GPRS_C_SDK
+	url = https://github.com/zkemble/GPRS_C_SDK

README.md

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+Remote Mail Notifier (and GPS tracker)
+======================================
+
+A notifier for when mail is received in your mail box! Uses an A9G GPRS/GPS module to send HTTP requests to a web server via the mobile network.\
+A PHP script then sends messages to a Telegram group chat using the bot API. Since the A9G also has a built-in GPS receiver the mail notifier can be used as a GPS tracker!\
+Also incorporates a BME280 environmental sensor and should last for around 4-5 years on a single charge of a 10440 lithium battery (~320mAh, equivalent AAA size), if mail is received 3 times per week.
+
+[https://blog.zakkemble.net/remote-mail-notifier-and-gps-tracker/](https://blog.zakkemble.net/remote-mail-notifier-and-gps-tracker/)
+
+![Mail notifier pic](https://github.com/zkemble/MailboxNotifier/raw/master/images/heylookmail.jpg "")
+
+--------
+
+Zak Kemble
+
+contact@zakkemble.net

firmware/a9g/Makefile

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+
+LOCAL_NAME := projects/mailbox
+
+LOCAL_MODULE_DEPENDS := \
+
+LOCAL_API_DEPENDS := \
+	libs/gps \
+	libs/utils \
+
+LOCAL_ADD_INCLUDE := \
+	include \
+	include/std_inc \
+	include/api_inc \
+	libs/cjson/src \
+	libs/gps/minmea/src \
+
+IS_ENTRY_POINT := no
+
+MYCFLAGS += 
+
+C_SRC := ${notdir ${wildcard src/*.c}}
+
+include ${SOFT_WORKDIR}/platform/compilation/cust_rules.mk
+
+-include $(patsubst %,${DEPS_REL_PATH}/%.d,$(basename $(C_SRC)))

firmware/a9g/build.bat

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+:: Keep the cmd window open after it finishes
+cmd /k runmake.bat

firmware/a9g/config.h

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+/*
+ * Project: Remote Mail Notifier (and GPS Tracker)
+ * Author: Zak Kemble, contact@zakkemble.net
+ * Copyright: (C) 2020 by Zak Kemble
+ * License: 
+ * Web: https://blog.zakkemble.net/remote-mail-notifier-and-gps-tracker/
+ */
+
+#ifndef CONFIG_H_
+#define CONFIG_H_
+
+#define FW_VERSION	"1.0.0 200103"
+
+#define HTTP_API_KEY	"xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
+
+#define APN_NAME	"apnname"
+#define APN_USER	"apnuser"
+#define APN_PASS	"apnpass"
+
+#define BAL_NUM_SEND	"0000"
+#define BAL_NUM_RECV	" 0000" // A9G BUG: Short numbers start with a space for some reason
+#define BAL_MSG			"BAL"
+
+#define HTTP_HOST	"example.com"
+#define HTTP_PORT	80
+#define HTTP_PATH	"/mailnotifier.php"
+
+#define DEBUG 1 // Disable all *_DBG() and PRINTD() messages
+
+#define DEBUG_SMS 1
+#define DEBUG_GSM 1
+#define DEBUG_GPS 1
+#define DEBUG_MAIL 1
+#define DEBUG_GPRS 1
+#define DEBUG_SMTP 1
+#define DEBUG_HTTP 1
+
+#endif /* CONFIG_H_ */