D D
A Telegram BOT for this awesome all-in-one board.
Dependencies: BSP_B-L475E-IOT01 mbed es_wifi jsmn
Telegram Bot for DISCO_L475VG_IOT01
This application embeds aTelegram chatbot into the DISCO_L475VG_IOT01 board.
The Bot answers to the users queries about:
- Real time environmental data taken from the on board sensors.
- Environmental data history of the latest 24 hours stored on board.
- Camera images taken from the Arducam-mini-2mp (optional).
This software uses:
- A modified version of the wifi library provided by ST in order to enable the TCP-SSL connection.
- An open source json parser jsmn (https://github.com/zserge/jsmn).
- A web service (http://now.http.org) to initialize the RTC.
- A web service (https://image-charts.com) to publish temperature,humidity and pressure charts.
- A modified version of the Arducam driver (https://os.mbed.com/users/dflet/)
Compilation
Import in your compiler and modify the following defines:
- WIFI_SSID
- WIFI_PASSWORD
- TELEGRAM_BOT_APIKEY
Please follow the Telegram bots documentation (https://core.telegram.org/bots) to better understand how the Telegram API works and how to create your bot.
In order to support the Arducam-Mini-2MP set WITH_ARDUCAM_2640 #define to 1.
Screenshots
Security
The Inventek wifi module creates the ssl connection but does not authenticate the server's certificate ( AT cmd P9=0 ).
For more details http://www.inventeksys.com/IWIN/programming-certificates-tcp-ssltls/
Diff: main.cpp
- Revision:
- 6:94fc61e1cf40
- Parent:
- 5:f204a47aa813
- Child:
- 7:2b389a2e83c4
--- a/main.cpp Fri Jan 26 14:59:14 2018 +0000
+++ b/main.cpp Fri Jan 26 15:27:26 2018 +0000
@@ -13,6 +13,7 @@
#define WIFI_PASSWORD ""
#define TELEGRAM_BOT_APIKEY ""
+
#define WIFI_WRITE_TIMEOUT 10000
#define WIFI_READ_TIMEOUT 10000
#define CONNECTION_TRIAL_MAX 10
@@ -37,7 +38,7 @@
// telegram REST API
const char TELEGRAM_GETUPDATES[] = "GET /bot" TELEGRAM_BOT_APIKEY "/getUpdates?offset=%d&timeout=5&limit=1 HTTP/1.1\r\nHost: api.telegram.org\r\nUser-Agent: curl/7.50.1\r\nAccept: */*\r\n\r\n";
const char TELEGRAM_SENDMESSAGE[] = "GET /bot" TELEGRAM_BOT_APIKEY "/sendMessage HTTP/1.1\r\nHost: api.telegram.org\r\nUser-Agent: curl/7.50.1\r\nAccept: */*\r\nContent-Type: application/json\r\nContent-Length: %d\r\n\r\n";
-const char TELEGRAM_CUSTOM_KEYBOARD[] = "{\"keyboard\": [[\"Temperature\"],[\"Humidity\"],[\"Pressure\"]],\"one_time_keyboard\": true}";
+const char TELEGRAM_CUSTOM_KEYBOARD[] = "{\"keyboard\": [[\"Temperature\"],[\"Humidity\"],[\"Pressure\"],[\"RTC\"]],\"one_time_keyboard\": true}";
bool telegram_get_update(int32_t update_id);
bool telegram_send_message();
#define TELEGRAM_BOT_INCOMING_CMD_SIZE 80
@@ -193,6 +194,12 @@
snprintf(g_json_io_buffer,TBOT_JSON_BUFFER_SIZE,"{\"chat_id\":%d,\"text\":\"Pressure %.2f mBar\",\"reply_markup\":%s}",
chat_id,BSP_PSENSOR_ReadPressure(),TELEGRAM_CUSTOM_KEYBOARD);
}
+ else if( strstr(g_incoming_msg,"RTC") != NULL)
+ {
+ time_t seconds = time(NULL);
+ snprintf(g_json_io_buffer,TBOT_JSON_BUFFER_SIZE,"{\"chat_id\":%d,\"text\":\"%s UTC\",\"reply_markup\":%s}",
+ chat_id,ctime(&seconds),TELEGRAM_CUSTOM_KEYBOARD);
+ }
else
{
snprintf(g_json_io_buffer,TBOT_JSON_BUFFER_SIZE,"{\"chat_id\":%d,\"text\":\"Available commands\",\"reply_markup\":%s}",