External IO Header connections

[Emmanuel Goudot]

I am trying to understand connections of pytrack (mine is labeled "V1.0") as shown here: https://docs.pycom.io/pycom_esp32/_downloads/pytrackPinoutComp.pdf
Ext IO header pin 2 labeled "PWR_EN" should be connected to LoPy (or other) pin P3 (PWR_EN), but it is not the case.
Ext IO header pin 9 "EXT_IO_4" is in fact connected to P4 SD_CMD
Ext IO header pin 10 "EXT_IO_5" is in fact connected to P8 SD_DAT

pytrackPinoutComp.pdf is quite misleading and components are also not as received board.
Would it be possible to get updated and correct documentation ?

[bucknall]

@Emmanuel-Goudot Verifying this with the team - will make the corrections asap! Thanks!

[this.wiederkehr]

@bucknall, is there an update on this topic?

[jcaron]

As discussed here:
https://forum.pycom.io/topic/1673/pysense-pinout/4

The documentation is quite incorrect.

On the Pysense:

• pins 3 and 4 are reversed (pin 4 is the power to the board, pin 3 power to the module)
• pin 5 (EXT_IO0) is connected to P2 / G23 / RGB_LED
• pin 9 (EXT_IO4) is connected to G11 / P4 / SD_CMD
• pin 10 (EXT_IO5) is connected to P8 / G15 / SD_DAT

Pins EXT_IO4 and EXT_IO5 are NOT connected to the PIC.

Pins EXT_IO0, EXT_IO1 and EXT_IO2 are connected to the PIC. However they are all connected to port C, which does not allow interrupts. So the sentence:

Interrupts EXT_IO0, EXT_IO4 & EXT_IO5 are connected to a PIC and are accessible via Pycom Libraries

is completely incorrect. No interrupts, wrong pins.

The situation seems to be quite similar for the Pytrack.

[jmahesh]

This post is deleted!

[jmahesh]

@bucknall Any update on the topic..?

I wanna connect a Buzzer with IO Header.
Please suggest a topic to refer..

[gregcope]

@emmanuel-goudot I have just wasted a load of time working out the same thing.

Can someone at Pycom change/improve the pytrack documentation/PINout diag;

https://pycom.io/wp-content/uploads/2017/04/pytrackPinoutCompN3.pdf

[jcaron]

@gregcope Where did you get that link from? The current doc (https://docs.pycom.io/chapter/datasheets/downloads/pytrack-pinout.pdf) linked from https://docs.pycom.io/chapter/datasheets/boards/pytrack.html is correct. You seem to have a link to a previous version of the pinout.

@seb: you should probably remove the old document and/or redirect the old URL to the new one?

[gregcope]

@jcaron Ahhhhhhh. Thanks.

I have been using this;

https://pycom.io/product/pytrack/

"PIN OUT" link