TTGO T-Call ( ESP32 + SIM800l ) combine BlynkClient.ino & HttpClient.ino

mikekgr · January 15, 2020, 4:00pm

Dear @khoih
YES YOU DID IT !!! You are genius !
I followed your Nr 1 solution.
You need just at the end of your HTTPClientHandle function, you need to reinitialize Blynk.begin( … ) because when the function is started the Blynk is stop working… See:

 ///modem.gprsDisconnect(); /// leave GPRS connected ///
  ///SerialMon.println(F("GPRS disconnected"));
  SerialMon.println(F("GPRS is NOT disconnected"));
  SerialMon.println(F("Reconnecting Blynk..."));
  Blynk.begin(auth, modem, apn, gprsUser, gprsPass);
}

Do you need the serial log ?

Best Regards,
Mike Kranidis

khoih · January 15, 2020, 4:19pm

Dear @mikekgr

That’s nice.
Could you post the serial log as I’m still curious to see why Blynk is stop working.
I don’t like that and later when I have the board, I will try to find out the root cause and fix if possible as it’s always better to have both working independently.

Regards,
KH

mikekgr · January 15, 2020, 4:43pm

Dear @khoih
here is the log

18:39:19.598 -> IP5306 KeepOn OK
18:39:25.582 -> Initializing modem...
18:39:30.738 -> Modem: SIM800 R14.18
18:39:30.738 -> Waiting for network... OK
18:39:37.890 -> Network connected
18:39:37.890 -> Connecting to APN: myq OK
18:39:44.382 -> [24801] 
18:39:44.382 ->     ___  __          __
18:39:44.382 ->    / _ )/ /_ _____  / /__
18:39:44.382 ->   / _  / / // / _ \/  '_/
18:39:44.382 ->  /____/_/\_, /_//_/_/\_\
18:39:44.382 ->         /___/ v0.6.1 on ESP32
18:39:44.382 -> 
18:39:44.382 -> [24803] Modem init...
18:39:44.489 -> [24926] Connecting to network...
18:39:44.489 -> [24936] Network: TIM
18:39:44.489 -> [24936] Connecting to myq ...
18:39:48.941 -> [29363] Connected to GPRS
18:39:48.941 -> [29373] Connecting to blynk-cloud.com:80
18:39:50.213 -> [30658] Ready (ping: 378ms).
18:39:50.385 -> Connecting to vsh.pp.ua OK
18:39:51.112 -> Performing HTTP GET request...
18:39:51.815 -> HTTP/1.1 200 OK
18:39:51.815 -> Server: nginx/1.10.3 (Ubuntu)
18:39:51.815 -> Date: Wed, 15 Jan 2020 16:39:51 GMT
18:39:51.815 -> Content-Type: text/plain; charset=UTF-8
18:39:51.815 -> Content-Length: 121
18:39:51.815 -> Connection: close
18:39:51.815 -> X-DNS-Prefetch-Control: off
18:39:51.815 -> X-Frame-Options: SAMEORIGIN
18:39:51.815 -> Strict-Transport-Security: max-age=15552000; includeSubDomains
18:39:51.815 -> X-Download-Options: noopen
18:39:51.815 -> X-Content-Type-Options: nosniff
18:39:51.815 -> X-XSS-Protection: 1; mode=block
18:39:51.815 -> Accept-Ranges: bytes
18:39:51.815 -> Cache-Control: public, max-age=0
18:39:51.815 -> Last-Modified: Wed, 27 Sep 2017 09:03:12 GMT
18:39:51.815 -> ETag: W/"79-15ec2936080"
18:39:51.815 -> 
18:39:51.815 -> 
18:39:51.815 ->   _____            _____  _____  _____
18:39:51.815 ->     |  | |\ | \_/ |  ___ |_____ |  |  |
18:39:51.815 ->     |  | | \|  |  |_____| _____||  |  |
18:39:51.815 -> 
18:39:54.158 -> 
18:39:54.205 -> Server disconnected
18:39:54.205 -> GPRS is NOT disconnected
18:39:54.205 -> Reconnecting Blynk...
18:39:54.205 -> [34618] 
18:39:54.205 ->     ___  __          __
18:39:54.205 ->    / _ )/ /_ _____  / /__
18:39:54.205 ->   / _  / / // / _ \/  '_/
18:39:54.205 ->  /____/_/\_, /_//_/_/\_\
18:39:54.205 ->         /___/ v0.6.1 on ESP32
18:39:54.205 -> 
18:39:54.205 -> [34626] Modem init...
18:39:54.299 -> [34752] Connecting to network...
18:39:54.346 -> [34762] Network: TIM
18:39:54.346 -> [34762] Connecting to myq ...
18:39:59.643 -> [40065] Connected to GPRS
18:39:59.643 -> [40074] Connecting to blynk-cloud.com:80
18:40:01.156 -> [41582] Ready (ping: 1025ms).
18:41:01.217 -> Connecting to vsh.pp.ua OK
18:41:02.143 -> Performing HTTP GET request...
18:41:02.940 -> HTTP/1.1 200 OK
18:41:02.940 -> Server: nginx/1.10.3 (Ubuntu)
18:41:02.940 -> Date: Wed, 15 Jan 2020 16:41:02 GMT
18:41:02.940 -> Content-Type: text/plain; charset=UTF-8
18:41:02.940 -> Content-Length: 121
18:41:02.940 -> Connection: close
18:41:02.940 -> X-DNS-Prefetch-Control: off
18:41:02.940 -> X-Frame-Options: SAMEORIGIN
18:41:02.940 -> Strict-Transport-Security: max-age=15552000; includeSubDomains
18:41:02.940 -> X-Download-Options: noopen
18:41:02.940 -> X-Content-Type-Options: nosniff
18:41:02.940 -> X-XSS-Protection: 1; mode=block
18:41:02.940 -> Accept-Ranges: bytes
18:41:02.940 -> Cache-Control: public, max-age=0
18:41:02.940 -> Last-Modified: Wed, 27 Sep 2017 09:03:12 GMT
18:41:02.940 -> ETag: W/"79-15ec2936080"
18:41:02.940 -> 
18:41:02.940 -> 
18:41:02.940 ->   _____            _____  _____  _____
18:41:02.940 ->     |  | |\ | \_/ |  ___ |_____ |  |  |
18:41:02.940 ->     |  | | \|  |  |_____| _____||  |  |
18:41:02.940 -> 
18:41:05.190 -> 
18:41:05.237 -> Server disconnected
18:41:05.237 -> GPRS is NOT disconnected
18:41:05.237 -> Reconnecting Blynk...
18:41:05.237 -> [105662] 
18:41:05.237 ->     ___  __          __
18:41:05.237 ->    / _ )/ /_ _____  / /__
18:41:05.237 ->   / _  / / // / _ \/  '_/
18:41:05.237 ->  /____/_/\_, /_//_/_/\_\
18:41:05.237 ->         /___/ v0.6.1 on ESP32
18:41:05.237 -> 
18:41:05.237 -> [105670] Modem init...
18:41:05.378 -> [105796] Connecting to network...
18:41:05.378 -> [105806] Network: TIM
18:41:05.378 -> [105806] Connecting to myq ...
18:41:10.721 -> [111164] Connected to GPRS
18:41:10.721 -> [111172] Connecting to blynk-cloud.com:80
18:41:11.752 -> [112179] Ready (ping: 424ms).
18:42:11.817 -> Connecting to vsh.pp.ua OK
18:42:12.145 -> Performing HTTP GET request...
18:42:12.890 -> HTTP/1.1 200 OK
18:42:12.890 -> Server: nginx/1.10.3 (Ubuntu)
18:42:12.890 -> Date: Wed, 15 Jan 2020 16:42:12 GMT
18:42:12.890 -> Content-Type: text/plain; charset=UTF-8
18:42:12.890 -> Content-Length: 121
18:42:12.890 -> Connection: close
18:42:12.890 -> X-DNS-Prefetch-Control: off
18:42:12.890 -> X-Frame-Options: SAMEORIGIN
18:42:12.890 -> Strict-Transport-Security: max-age=15552000; includeSubDomains
18:42:12.890 -> X-Download-Options: noopen
18:42:12.890 -> X-Content-Type-Options: nosniff
18:42:12.890 -> X-XSS-Protection: 1; mode=block
18:42:12.890 -> Accept-Ranges: bytes
18:42:12.890 -> Cache-Control: public, max-age=0
18:42:12.890 -> Last-Modified: Wed, 27 Sep 2017 09:03:12 GMT
18:42:12.890 -> ETag: W/"79-15ec2936080"
18:42:12.890 -> 
18:42:12.890 -> 
18:42:12.890 ->   _____            _____  _____  _____
18:42:12.890 ->     |  | |\ | \_/ |  ___ |_____ |  |  |
18:42:12.890 ->     |  | | \|  |  |_____| _____||  |  |
18:42:12.890 -> 
18:42:15.226 -> 
18:42:15.226 -> Server disconnected
18:42:15.226 -> GPRS is NOT disconnected
18:42:15.226 -> Reconnecting Blynk...
18:42:15.226 -> [175654] 
18:42:15.226 ->     ___  __          __
18:42:15.226 ->    / _ )/ /_ _____  / /__
18:42:15.226 ->   / _  / / // / _ \/  '_/
18:42:15.226 ->  /____/_/\_, /_//_/_/\_\
18:42:15.226 ->         /___/ v0.6.1 on ESP32
18:42:15.226 -> 
18:42:15.226 -> [175662] Modem init...
18:42:15.366 -> [175787] Connecting to network...
18:42:15.366 -> [175798] Network: TIM
18:42:15.366 -> [175798] Connecting to myq ...
18:42:19.665 -> [180124] Connected to GPRS
18:42:19.712 -> [180135] Connecting to blynk-cloud.com:80
18:42:20.660 -> [181077] Ready (ping: 342ms).

khoih · January 28, 2020, 9:51pm

Dear @mikekgr

The library version v1.0.1 is finally posted here

Thanks and Regards,

mikekgr · January 29, 2020, 6:57am

Dear @khoih
thanks a lot for your support in this. Did you receive your TTGO T-Call ?
I will test your new release when I have a little time, I am having hard time in my job because my company will be participated in a very big exchibition in the London / UK and I have lot of things to take care …

Best Regards,
Mike Kranidis

PeteKnight · February 2, 2020, 7:03pm

A post was split to a new topic: Ttgo t-call (esp32 + sim800l) with NEO-8M GPS

khoih · February 9, 2020, 10:47pm

Dear @mikekgr
Just received the TTGO T-Call yesterday.
I updated the Blynk_GSM library to v1.0.2 to enable GSM/GPRS and WiFi to run simultaneously. Already tested OK with TTGO-TCall as well as normal ESP32/ESP8266.
Also update the link here

Hope you find it useful as well as use it somehow somewhere.
Regards,
KH

mikekgr · February 10, 2020, 7:44am

Dear @khoih,
thanks a lot for keeping your fine work and to support the community.
I will test is as soon as I can and I will report the result back to you.
Best Regards,
Mike Kranidis

Blynk_Coeur · February 10, 2020, 9:15pm

Wow, Mike is back

mikekgr · February 10, 2020, 9:56pm

Hello Dear @Blynk_Coeur
I am (almost) constantly here…! Not very active recently, due to very “big load” on my work but I hope to change this soon…

Blynk_Coeur · February 10, 2020, 10:18pm

Hope we can get blynk v2 soon

Alexis

mikekgr · February 11, 2020, 7:26am

as I stated I still quite busy so: PLEASE get your copy first and let me (us) know your impression … !!!

c.barca · March 23, 2021, 1:07pm

Hi,

I need to use integrated modem of TTGO T-CALL SIM800L board and another serial device.

Are there available UART(s) for connecting via serial to this board ? If yes, what are the PIN(s) ?

Thank you, regards

PeteKnight · March 23, 2021, 1:37pm

It’s a standard ESP32 chip, so has 3 hardware UARTS.

The Serial port (UART0) is connected to the pins labelled Tx (GPIO1) and Rx (GPIO3). It’s also connected via an onboard TTL to USB chip to the USB C power/programming connector.

The Serial1 port (UART1) is connected to the SIM800L chip using pins 26 (Tx) and 27 (Rx).

The Serial2 port (UART2) can be accessed by almost any of the remaining available pins by specifying them in the Serial2.begin command…

Serial2.begin(baud-rate, protocol, RX pin, TX pin)

the protocol will normally be SERIAL_8N1

Pete.

c.barca · March 23, 2021, 2:53pm

Thank’s Pete. It work fine.

papakigr · June 21, 2021, 6:15am

Kalimera mikekgr,

Did you test it? I am trying to use the same device with 2outputs as dry contacts.

Haven’t played a lot with Arduino, I use tasmota with home Assistant mainly.