Search found 85 matches

by Duhjoker
Wed Jan 03, 2018 9:22 am
Forum: ESP32 Arduino
Topic: ESP32 I2C mapping
Replies: 32
Views: 28518

Re: ESP32 I2C mapping

ok so I don't need to modify wire any more but I do need to modify the seesaw library?
by Duhjoker
Wed Jan 03, 2018 8:13 am
Forum: ESP32 Arduino
Topic: ESP32 I2C mapping
Replies: 32
Views: 28518

Re: ESP32 I2C mapping

the page says that dac1 and dac 2 are also analog and also a gpio. Does that mean I can comment out the dac defines and use those Pins?
by Duhjoker
Wed Jan 03, 2018 7:30 am
Forum: ESP32 Arduino
Topic: ESP32 I2C mapping
Replies: 32
Views: 28518

Re: ESP32 I2C mapping

Thankyou!!! ok I was backtracking the code from seesaw to wire and now I see that nothing else needs to be changed I just need to add a second begin and bus address into my code. By pointing wire.begin to the two pins I chose as secondary i2c pins. And both pins need to be input/output capable pins....
by Duhjoker
Wed Jan 03, 2018 3:43 am
Forum: ESP32 Arduino
Topic: ESP32 I2C mapping
Replies: 32
Views: 28518

Re: ESP32 I2C mapping

Ok guys I'm almost there..... Whats the next step? any of the above?
by Duhjoker
Tue Jan 02, 2018 1:22 am
Forum: ESP32 Arduino
Topic: ESP32 I2C mapping
Replies: 32
Views: 28518

Re: ESP32 I2C mapping

Awesome!!! You rock!!! Thank you!!! Ok this seems pretty simple so far. So now it point to the pins that I changed in pins_arduino? Now about those pins.... What basic functions must the pins have to use them as my secondary I2C? I would like to have one set on one side of the huzzah and the seconda...
by Duhjoker
Mon Jan 01, 2018 9:36 am
Forum: ESP32 Arduino
Topic: ESP32 I2C mapping
Replies: 32
Views: 28518

Re: ESP32 I2C mapping

Awesome thank you. Ok now how do I get that instance to point to the right pins? Or what is my next step?
by Duhjoker
Mon Jan 01, 2018 7:43 am
Forum: ESP32 Arduino
Topic: ESP32 I2C mapping
Replies: 32
Views: 28518

Re: ESP32 I2C mapping

I need to make a new two wire with the sda and scl pointing at the second set of pinouts I defined in pins_arduino?

I tried adding this to the wire.cpp but it just caused redefinition errors...

TwoWire Wire = TwoWire(1);

or should it be

TwoWire2 = TwoWire(1);
by Duhjoker
Sun Dec 31, 2017 11:43 pm
Forum: ESP32 Arduino
Topic: ESP32 I2C mapping
Replies: 32
Views: 28518

Re: ESP32 I2C mapping

Could I please get some help on changing the pin assignments? ive googled "esp32 change pin out", "esp32 change pin assignment and every other way I could think of but I cant find any information on how to do so. What all do I need to do to add a second set of i2c ports?
by Duhjoker
Sun Dec 31, 2017 9:46 am
Forum: ESP32 Arduino
Topic: ESP32 I2C mapping
Replies: 32
Views: 28518

Re: ESP32 I2C mapping

where should these tweaks take place? In the arduino/esp libraries? Or in the joy example? Will the defines I made in pins Arduino work?
by Duhjoker
Sun Dec 31, 2017 7:43 am
Forum: ESP32 Arduino
Topic: ESP32 I2C mapping
Replies: 32
Views: 28518

Re: ESP32 I2C mapping

it says on this page that it has 2 i2c and that only one is configured by default.... https://learn.adafruit.com/adafruit-huzzah32-esp32-feather/overview its in the features list both i2c devices have resistors pre installed the pinouts page describes the gpio capabilities if that will help https://...

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