About YoussefElbattah

YoussefElbattah · 2024-03-14

Hello everyone, I am trying to communicate with lora e5 using usart1, when i send "AT\r\n" command and i try to receive data from the same uart(lora) the function while ((__HAL_UART_GET_FLAG(huart, Flag) ? SET : RESET) == Status) blocks the execution...

YoussefElbattah · 2024-03-08

Hello,I'm currently sending AT commands to the Grove LoRa E5 module from Seed Studio, when I send commands like "AT," there is no response from the module. I've connected the module to the USART of the STM32L476RG board. If anyone has encountered and...

YoussefElbattah · 2024-03-01

Hello,I have set the BR bit in CR1 to 0 with the expectation of obtaining an 8MHz clock frequency. However, I am encountering an actual frequency of approximately 1.042MHz. Does anyone have an explanation for this issue, or should I consider implemen...

YoussefElbattah · 2024-03-15

Hi TDK,i have tried this API and it doesn't work it sends back "\r\n", and now it works the problem was the sizeof the buffer, the parameter size of the buffer that i send to uart_receive was strlen but my buffer doesn't contains data. So, it was emp...

YoussefElbattah · 2024-03-15

Hi Andrew,I think that the "AT\r\n" command works because i have tried the "AT\r" and just now it sends back only "+A" i dont know why it sends back only "+A" instead of "+AT : OK" i have changed the timeout to 1000 instead of HAL_MAX_DELAY, and the ...

YoussefElbattah · 2024-03-15

Hi Danish1,Do you mean by RXD the register which contains data of the buffer RX "RDR" or something else ?If you mean the buffer, it already contains the '+' equivalent to 0x2b in hex data which is the first caracter if the response "+AT : OK", and i ...

YoussefElbattah · 2024-03-10

Hi,This is my code :int main(void) { /* USER CODE BEGIN 1 */ /* USER CODE END 1 */ /* MCU Configuration--------------------------------------------------------*/ /* Reset of all peripherals, Initializes the Flash interface and the Systick....

YoussefElbattah · 2024-03-09

Yes I am using the NUCLEO-L476RG board, and i am using arduino shield and connect lora with UART not I2C.I am able to send "AT\r\n" via UART and i can see it in the terminal but when i send AT command via serial i got no response from lora.When i sen...

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