Shop OBEX P1 Docs P2 Docs Learn Events
Communicate with MLX90614 — Parallax Forums

Communicate with MLX90614

notebooknotebook Posts: 6
edited 2012-02-07 12:38 in Accessories
Is there any way to verify the MLX90614 is working? Any pin high or low?

I have connected the MLX90614 SIG pin to one of the MCU pin, I send 0x00 "!TEMR" 0x35 0x07 at 9600 ,1 stop bit ,no parity bit,
but I didn't get any response at SIG when I read back at the same pin. The SIG pin always high.

Any Idea this is happening?

I have send email to support@parallax.com but no response.
Can anyone help?

=Thanks=

Comments

  • kwinnkwinn Posts: 8,697
    edited 2010-03-09 14:30
    The data sheet on the parallax web site seems to have all the information required. Have you made sure the reset pin is low?
  • notebooknotebook Posts: 6
    edited 2010-03-10 01:51
    The website does not provide information about how to troubleshoot the sensor, how to make sure the sensor is alive.

    "Have you made sure the reset pin is low?"
    when the reset pin is low, this will reset the sensor. To communicate with the sensor the reset pin must be high.
  • kwinnkwinn Posts: 8,697
    edited 2010-03-10 04:56
    Sorry, I should have said have you made sure the reset pin went low for the required time to reset the chip then was high.
  • notebooknotebook Posts: 6
    edited 2010-03-10 07:18
    Yes, I pull low for 100us and pull high for 100us then only I transmit 0x00 "!TEMR" 0x35 0x07.

    Any Ideas, why there is no response from the sensor?
  • cessnapilotcessnapilot Posts: 182
    edited 2010-03-13 11:05
    The factory default for the Slave address is 5Ah (not 35h). Maybe...

    ▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔


    Intentionally Left Blank
  • leolib2004leolib2004 Posts: 5
    edited 2012-02-07 12:38
    I have the send problem... Did you solve it? I am sending the same thing as you did...
    I am with 16f628A...
Sign In or Register to comment.