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:
- 4:9926288a8703
- Parent:
- 3:d6d4d692f167
- Child:
- 5:f204a47aa813
diff -r d6d4d692f167 -r 9926288a8703 main.cpp
--- a/main.cpp Wed Jan 24 11:51:07 2018 +0000
+++ b/main.cpp Thu Jan 25 15:27:29 2018 +0000
@@ -17,8 +17,8 @@
#define WIFI_READ_TIMEOUT 10000
#define CONNECTION_TRIAL_MAX 10
-// serial output
-Serial pc(SERIAL_TX, SERIAL_RX);
+// LED
+DigitalOut g_alivenessLED(LED1);
// wifi interfaces
ES_WIFIObject_t g_es_wifi_ctx;
@@ -57,25 +57,8 @@
int main()
{
- pc.baud(115200);
+ printf("> DISCO_L475VG_IOT01-Telegram-BOT started\r\n");
- /*Initialize WIFI module */
- printf("> Setup wifi connection ...");
- if (wifi_connect())
- {
- printf(" OK\r\n");
- }
- else
- {
- printf(" KO\r\n");
- while (1)
- ;
- }
- printf("> IP Address : %d.%d.%d.%d\r\n",
- g_es_wifi_ctx.NetSettings.IP_Addr[0],
- g_es_wifi_ctx.NetSettings.IP_Addr[1],
- g_es_wifi_ctx.NetSettings.IP_Addr[2],
- g_es_wifi_ctx.NetSettings.IP_Addr[3]);
/* Setup env sensors */
BSP_TSENSOR_Init();
@@ -94,16 +77,25 @@
int json_results;
bool well_done = false;
-
+ if(wifi_connect())
+ printf("> Wifi connected\r\n");
+ else
+ {
+ NVIC_SystemReset();
+ }
while (1)
{
+ g_alivenessLED = !g_alivenessLED;
+
// Get updates -- API method getUpdates
printf("> Get updates\r\n");
g_json_io_buffer[0]=0;
if (telegram_get_update(update_id + 1) == false)
{
- printf("> ERROR telegram_get_update\r\n");
+ printf("> ERROR telegram_get_update\r\n> Reset wifi connection\r\n");
+ ES_WIFI_ResetModule(&g_es_wifi_ctx);
+ wifi_connect();
continue;
}
printf("> JSON content: %s\r\n", g_json_io_buffer);