Comments on: ESP32: Send Messages to WhatsApp

By: Dusan

Dusan — Fri, 01 Aug 2025 15:38:25 +0000

Hello.
Another perfect tutorial. Sending a message works perfectly. Now I just need to integrate sending measurements with BME.
I’m a little annoyed by the number of ads popping up while studying the documentation. When scrolling the page, one more ad doesn’t go beyond the top edge and another one pops up from the bottom and another one flashes from the side. Younger people might not mind, but it really bothers me. I understand that you have to make a living from something when the site is conditioned by only one or two purchases of your courses. Don’t get me wrong, I don’t want to disparage your truly meritorious work at all. I apologize and thank you for your understanding.

By: Sara Santos

Sara Santos — Thu, 23 Jan 2025 10:46:34 +0000

In reply to ahmed.

Hi.
Probably wrong phone number or API key. Double-check those.
Regards,
Sara

By: ahmed

ahmed — Tue, 21 Jan 2025 16:39:56 +0000

I tried the code but i get “Error sending the message
HTTP response code:-1”
how I can fix it!

By: Kobi

Kobi — Thu, 21 Nov 2024 20:33:37 +0000

Hi,

I’m trying to use the example code on Uno R4 WiFi board but got ” Compilation error: HTTPClient.h: No such file or directory”.
I already installed to latest version of this board (2.0.18) and esp board (3.0.7)
Please help! I’m stuck.

By: Rui Santos

Rui Santos — Tue, 09 Jul 2024 20:39:01 +0000

In reply to wisnu.

Hi.
Yes.
Here it is: https://randomnerdtutorials.com/esp8266-nodemcu-send-messages-whatsapp/
Regards.

By: wisnu

wisnu — Sun, 07 Jul 2024 16:42:33 +0000

In reply to Sara Santos. Is there a Callmebot tutorial using ESP8266?

By: Mehmet

Mehmet — Wed, 20 Mar 2024 13:02:59 +0000

Best regards to all friends who contributed and contributed. I want to learn: With Esp32, can esp32 Bluetooth coverage area send messages to all mobile phones? Mobile users will not give their mobile numbers. Example: Can information messages be sent to the WhatsApp accounts of the participants in an event? Thank you in advance for your interest. .

By: Stefan

Stefan — Mon, 25 Dec 2023 22:24:25 +0000

In reply to Luis.

Howya,

Check your phone number. I had same error code

Error sending the message
HTTP response code: 203

Then I noticed that I have an extra number( fat fingers on keypad 🙂

Also I tried my missus phone number to send her “hearts” 😀 from ESP32

Same error code. Must be related to phone number, I guess.

Good luck
Stef

By: Luis

Luis — Sat, 02 Dec 2023 20:35:03 +0000

Hello Sara i’m having troubles with send the message it shows me on the console :
…
Connected to WiFi network with IP Address: 192.168.1.21
Error sending the message
HTTP response code: 203

I really aprecciate if you would you kindly to help me

By: Sara Santos

Sara Santos — Thu, 09 Nov 2023 16:24:23 +0000

In reply to Guilherme.

Hi.
Yes, we have a tutorial about that: https://randomnerdtutorials.com/telegram-group-esp32-esp8266/
Regards,
Sara