AT Command Tutorial: MDBT42Q-AT/PAT

5則迴響

1. Where do I find the c code that is sending the commands?

   讚讚

   回應

   1. Hi Steven,
      Thank you for asking. The c code of our AT Command FW will be undisclosable because it belongs to our know how. However, you can find the full command list(AT Command sets) in Page5~10 of the MDBT42Q-AT(Now called MDBT42Q-AT2)’s data sheet. Link: https://www.raytac.com/download/index.php?index_id=64.

      If you need any technical guidance, please send an inquiry to service@raytac.com. Thank you and hope to talk to you soon.

      讚讚

      回應

      1. Hi Tony,

         Thank you for getting back to me. I am not interested in the code that is in the module. I am more interested in code to use the module. The AT command list dose no offer much explanation on exactly how to use them. What does the AT+SLEEP command do and how do you wake the unit up from deep sleep? There is the AT+BAUDRATE commands. Do you just send the command and the unit switches to the baud rate?
         Another question is, when you set the UART_PD pin low to send commands or a bit for transmission, is a time delay needed between the when the pin is goes low and the command starts? Also, if the unit has a Bluetooth connection and you want to send a command, does there need to be a time delay between when the UART_PD pin goes low and the Flashed Default pin goes low?
         Any information like this would be helpful. Or some pseudo-code on how to send commands to the module.

         Best Regards,
         Steve

         讚讚

      2. Hi Steve,
         1. What does the AT+SLEEP command do and how do you wake the unit up from deep sleep?
         –> You can low the Wake-up pin to wake the unit up. After this, the program will re-start from the first row of the main() function.
         2. There is the AT+BAUDRATE commands. Do you just send the command and the unit switches to the baud rate?
         –> Yes.
         3. When you set the UART_PD pin low to send commands or a bit for transmission, is a time delay needed between the when the pin is goes low and the command starts?
         –> Our default is the unit will detect the UART PD pin status every 40ms. When the HOST device’s UART PD pin is on low, the HOST can send the AT-Command to the module after 50ms to make sure the module receives the command.
         4. Also, if the unit has a Bluetooth connection and you want to send a command, does there need to be a time delay between when the UART_PD pin goes low and the Flashed Default pin goes low?
         –> In this condition, the UART PD pin and Flash Default pin should both be on low. After setting lows on the HOST device, it can send the AT-Command to the module after 50ms time interval.

         Additionally, we would like to share with you a PTP file for easier sending the commands. Can you please contact our team member: Ms. Jocelyn(jocelyn@raytac.com) via email then she will send you? Thanks.

         Sincerely,
         Tony Yin
         Raytac Corporation

         讚讚

   2. Hello Steve

      I’m Jocelyn in Raytac Corporation.

      I sent you an email yesterday to provide more explanation & information to you. Hope the mail reach you successfully.

      Feel free to talk after you having my reply in email. 🙂

      讚讚

      回應