Search found 7 matches

by john_peter
Sat Dec 14, 2019 6:36 am
Forum: General Discussion
Topic: ESP32 interface with I/O Expander
Replies: 4
Views: 6327

Re: ESP32 interface with I/O Expander

Thanks for your valuable response.
by john_peter
Fri Dec 13, 2019 3:46 pm
Forum: General Discussion
Topic: ESP32 interface with I/O Expander
Replies: 4
Views: 6327

Re: ESP32 interface with I/O Expander

Hi, Thanks for your response. For TCA6424 I had already added pull up resistor to the RESET pin. I can control the LED normally as code flows on, but the main concern with unit time flicker on LED unit at the time when the board is powered ON. Footnote: The direction of port PA00 configured as outpu...
by john_peter
Fri Dec 13, 2019 10:56 am
Forum: General Discussion
Topic: ESP32 interface with I/O Expander
Replies: 4
Views: 6327

ESP32 interface with I/O Expander

I tried to interface TCA6424ARGJR I/O Expander with ESP32 via, I2C protocol I am setting the Configuration Registers first as output for port pin P00 in I/O expander and then writing into output port register as value 0(set to low level) that have connected LED to the P00 pin. I am facing an issue w...
by john_peter
Fri Jun 28, 2019 6:11 am
Forum: General Discussion
Topic: ESP -IDF v3.1.3 SWITCHING WiFi ISSUE IN AWS TASK
Replies: 3
Views: 4114

Re: ESP -IDF v3.1.3 SWITCHING WiFi ISSUE IN AWS TASK

Thank You very much ESP_Angus for your valuable suggestion.
by john_peter
Thu Jun 27, 2019 8:10 am
Forum: General Discussion
Topic: ESP -IDF v3.1.3 SWITCHING WiFi ISSUE IN AWS TASK
Replies: 3
Views: 4114

ESP -IDF v3.1.3 SWITCHING WiFi ISSUE IN AWS TASK

When I am using AWS_IOT(esp-idf-v3.1.3\examples\protocols\aws_iot\subscribe_publish) example code of ESP-IDF version-3.1.3 I am facing an issue. I am setting two WiFi hotspts and trying to switch between them if data connection is not present in any one of the WiFi hotspot. If data connection is not...
by john_peter
Wed Jun 05, 2019 11:28 am
Forum: General Discussion
Topic: ESP32 AWS Data Communication Issue
Replies: 0
Views: 1881

ESP32 AWS Data Communication Issue

I am working with two boards having ESP32-WROOM-32U and I am using the example code of ESP-IDF-v3.1.3(examples/protocols/aws_iot). I have an AWS account which I am using for communication between board and server. I am facing a problem in data communication between the AWS server and my boards. Tryi...
by john_peter
Wed May 15, 2019 10:37 am
Forum: General Discussion
Topic: ESP32: AP mode issue in the Google Chrome
Replies: 1
Views: 3201

ESP32: AP mode issue in the Google Chrome

Hello, When I am testing with the AP mode of the ESP32 with ESP IDF v3.1.3 . The Wi-Fi module which is set as an AP mode was successfully connected with Mobile or Tablet with the configured SSID and Password. The request sent from the browser to the ESP32 and response page sent to the browser from t...