Search found 4 matches

by abanik
Tue Dec 08, 2020 6:41 am
Forum: General Discussion
Topic: ESP32 Hardware serial issue.
Replies: 1
Views: 2835

ESP32 Hardware serial issue.

Hello, In my project, I am using Serial1 of ESP32 for RS485 and Serial2 for GSM module serial. After obtaining data from Serial1, I use the Serial1.end() to clear the buffer. After this the GSM modules fails to responds[unable to get any response for AT commands sent]. On investing the uartBegin() i...
by abanik
Thu Nov 26, 2020 4:55 am
Forum: General Discussion
Topic: Issue with software serial - Code crash while reading data
Replies: 0
Views: 1860

Issue with software serial - Code crash while reading data

Hello, Lately I have been working with ESP32 and started using Serial2 (software Serial to read data from RS232) and Serial1 (Hardware Serial to read data from RS232). Initially it works fine for few hours(as observed during testing) but later the code crashes while reading data through Hardware ser...
by abanik
Tue Aug 18, 2020 8:05 am
Forum: ESP IoT Solution
Topic: Unable to download a file completely from server using HTTP request through quectel EC20 module.
Replies: 0
Views: 2765

Unable to download a file completely from server using HTTP request through quectel EC20 module.

Hello, I have been trying to download a file from the server in the SD card by making HTTP request through Quectel EC20. In my case the serial buffer has been set as 2048 for Quectel serial buffer. Till 2146 bytes the file is downloaded correctly, but after that the data seems to be missing due to w...
by abanik
Tue Aug 11, 2020 7:57 am
Forum: ESP32 Arduino
Topic: Is SD card initialization required just once or every time the ESP32 resets?
Replies: 0
Views: 1715

Is SD card initialization required just once or every time the ESP32 resets?

Hello, I am using SD card with ESP32 dev board. It is working fine with library but my concern is something else. Due to some bug the board restarts(watchdog or something), the code reattempts to initialize the SD card again. Is it correct to initialize it again since it has been done once. Also is ...