![]() ![]() I have used the above code for the reading but the length is showing different after the 1st string which goes around 125 and because of that first time its getting copied into char buffer but further its showing empty. Memset(char_array, 0, sizeof(char_array)) ![]() put your main code here, to run repeatedly:2 Select normal boot mode by connecting GPIO0 to VCC through a 10K resistor. Disable SD card boot by connecting GPIO15 to ground through a 10K resistor. To enable the ESP8266 chip, connect CHPD (Chip Enable/Chip Power Down) pin to VCC through a 10K resistor. put your setup code here, to run once: Using the Software Serial code on ESP8266 code I can read the transmitted string from the STM32F103 and the actual length of the transmitted string is 59 but I am getting following output on the Serial monitor While loop of the STM32f103 for read/transmit file. I am transmitting the CSV file saved on SD card using STM32F103 on UART line to ESP8266, The file reading and UART transmission snippet is as below. ![]()
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