Forum Rule: Always post complete source code & details to reproduce any issue!
Results 1 to 6 of 6

Thread: WIZ820io and Teensy 3.5

  1. #1
    Junior Member
    Join Date
    Dec 2019
    Posts
    7

    WIZ820io and Teensy 3.5

    Hi everyone,

    I'm just getting started with using an Ethernet module and a Teensy 3.5 together. My end goal is to upload a .csv file stored on the SD card to a google drive.. but I'm nowhere near yet!

    I've got the WIZ820io module wired up to my Teensy 3.5 and I'm certain that's wired correctly, I have the Ethernet cable running from the port on my laptop to the module.
    Whenever I run any of the Ethernet examples I always get 'Ethernet shield was not found'.
    How do I find the correct IP address of the module? Is it the same as my laptop?
    I know the MAC address can effectively be anything, so I've just left that as in the example. I've also tried adding in the code to pulse the reset pin on the module, still nothing changes.

    Can anyone help please?

    Thank you!

  2. #2
    Junior Member
    Join Date
    May 2021
    Posts
    8
    Are you initializing the EthernetClient with an IP address that's on the correct subnet for use with your laptop?

  3. #3
    Junior Member
    Join Date
    Dec 2019
    Posts
    7
    I'm just using the WebServer example for now which just asks for 1 IP address, and I've used my laptops IP address but I'm not sure if that's correct.

  4. #4
    Junior Member
    Join Date
    May 2021
    Posts
    8
    I don't know if that's the only issue, but setting the IP address to be the same as the laptop will cause problems if I remember correctly. In general, the first three octets should be the same as the IP address of your laptop (specifically of the ethernet subnet, which you can find listed with ipconfig/ifconfig), while the 4th octet should be a different number.

  5. #5
    Junior Member
    Join Date
    Dec 2019
    Posts
    7
    Using the mac and IP address from the ethernet part of the ipconfig fixed this issue, I'm now getting past that first error.
    Thank you!
    Last edited by jessr95; 06-10-2021 at 01:19 PM.

  6. #6
    Junior Member
    Join Date
    May 2021
    Posts
    8
    No problem, glad that helped. Good luck with your project.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •