Search found 16 matches

by KaranRaj
Wed Dec 07, 2022 8:41 am
Forum: ESP-IDF
Topic: Modbus Slave does not get the first command
Replies: 1
Views: 800

Modbus Slave does not get the first command

My modbus slave fails to receive the first command. The master returns a response timeout. However, from second attempt, the commands start working correctly. Wondering if someone else has faced this issue, or if anyone has any idea of what might be wrong here?
by KaranRaj
Fri Mar 19, 2021 8:46 am
Forum: General Discussion
Topic: Building blocks style framework over the beautiful ESP-IDF
Replies: 0
Views: 1580

Building blocks style framework over the beautiful ESP-IDF

Hi Forum! Having built a number of projects using the ESP32, we wanted a consistent, easy to use framework. Not keen on disrupting quality, size or performance, we decided to come up with a custom framework over the ESP-IDF covering most common use-cases of the ESP32 in a "building block" style libr...
by KaranRaj
Fri Sep 25, 2020 11:28 am
Forum: ESP-IDF
Topic: Reading certificates from SPIFFS and connecting to AWS IoT
Replies: 2
Views: 3965

Re: Reading certificates from SPIFFS and connecting to AWS IoT

Hi Mahavir,

I tried passing the path directly, and that worked!

Thanks!

Regards,
Karan
by KaranRaj
Mon Sep 21, 2020 2:38 pm
Forum: ESP-IDF
Topic: Reading certificates from SPIFFS and connecting to AWS IoT
Replies: 2
Views: 3965

Reading certificates from SPIFFS and connecting to AWS IoT

Hi All! I need to store the thing's AWS certificates and key in the SPIFFS in order to survive OTA updates. The certificates are then read from the SPIFFS and connection to AWS IoT needs to be initialized using them. However, mbedtls_ssl_handshake fails with the below error: E (2884467) aws_iot: fai...
by KaranRaj
Wed Jun 03, 2020 6:11 am
Forum: ESP-MDF
Topic: AWS IOT
Replies: 3
Views: 9598

Re: AWS IOT

Hey guys! Would love to get an answer to this question. I did use the idf library, which seemed to work okay with the previous version of MDF I was using: 40f42e5042ec06278e9002d773b951565068525d But then I updated my MDF to release/v1.0 and the task seems to draw up huge chunks of RAM until the ESP...
by KaranRaj
Thu May 28, 2020 12:14 pm
Forum: ESP-MDF
Topic: Using Wi-Fi with ESP-MDF
Replies: 4
Views: 10562

Re: Using Wi-Fi with ESP-MDF

Hi @ESP_yudong, So basically the mesh will not connect when the root is trying to connect to the router? For example, if the WiFi SSID and password I provided to the ESP32 is incorrect, then the mesh will never connect, because the root is always trying to connect to the incorrect WiFi? Any suggesti...
by KaranRaj
Mon Jan 27, 2020 10:07 am
Forum: ESP-IDF
Topic: How to save power while maintaining bluetooth connection
Replies: 0
Views: 1851

How to save power while maintaining bluetooth connection

Hi guys!

So the light sleep and deep sleep modes disrupt the Bluetooth connectivity.

Wondering if there are sleep alternatives that maintain the Bluetooth connection on wakeup. Or if there are any other alternatives to save power while maintaining Bluetooth connectivity.

Thanks
by KaranRaj
Tue Jun 18, 2019 6:43 am
Forum: Hardware
Topic: Connecting phone to ESP32 with serial link
Replies: 7
Views: 12929

Re: Connecting phone to ESP32 with serial link

Thank's for your help, I will try to download a terminal app on my phone. I looked and I've got correct software/firmwares in my ESP32 ! EDIT : It works ! Thanks all ! I'm able to communicate to the ESP32 with my phone ! Hi @extqblys, Could you please let us know how you were able to achieve this? ...
by KaranRaj
Tue Mar 26, 2019 6:57 am
Forum: ESP-MDF
Topic: Broadcasting data to multiple(or all) nodes connected to root
Replies: 3
Views: 6759

Broadcasting data to multiple(or all) nodes connected to root

Hi! I want to try to broadcast the same data to all the nodes connected to the root node. The documentation says the "mwifi_root_write" API "Can send data to multiple devices at the same time". I understand the "dest_addrs_num" parameter is used to specify the number of nodes the root will send data...
by KaranRaj
Thu Mar 21, 2019 7:57 am
Forum: ESP-MDF
Topic: Using Wi-Fi with ESP-MDF
Replies: 4
Views: 10562

Re: Using Wi-Fi with ESP-MDF

Hi ESP_LBB! Thanks for the reply. Another issue I'm facing in the ESP-MDF "get-started" example is that if the router_ssid and router_password do not match with the actual router ssid and passwords of my router respectively, the mesh wont connect (node wont connect to the root node). mwifi_config_t ...