ESP8266 Developer Zone

Re: Analog Pin for output

2015-02-07T02:07:55+08:00

costaud wrote:
Analog_PIN wrote:Good Morning,

have we possible way for set GPIO PIN as Analog Pin out for examaple

0 until 3.3V by write a Value 0x00 until 0xFFFF / 0xFF

0 until 1.0V by write a Value 0x00 until 0xFFFF / 0xFF

Can you give a example how GPIO must be setting?

Thank you!

Ann

hey, each GPIO pin(gpio0-gpio15) can generate a shared first-order sigma-delta signal , for DAC, so that we can add some capacity to get an average analog voltage.
Change the frequency and duty of the sigma-delta signal to set the avg voltage.

Refer to this topic to get more information:
viewtopic.php?f=7&t=49&p=174&hilit=sigma#p174

Thank you Costaud, can u say me, which SDK i need minimum, because 0.9.3 is not work with the example in your link.

Thank you!

Ann

Statistics: Posted by Guest — Sat Feb 07, 2015 2:07 am

Re: Analog Pin for output

2015-02-05T11:57:40+08:00

Analog_PIN wrote:
Good Morning,

have we possible way for set GPIO PIN as Analog Pin out for examaple

0 until 3.3V by write a Value 0x00 until 0xFFFF / 0xFF

0 until 1.0V by write a Value 0x00 until 0xFFFF / 0xFF

Can you give a example how GPIO must be setting?

Thank you!

Ann

hey, each GPIO pin(gpio0-gpio15) can generate a shared first-order sigma-delta signal , for DAC, so that we can add some capacity to get an average analog voltage.
Change the frequency and duty of the sigma-delta signal to set the avg voltage.

Refer to this topic to get more information:
viewtopic.php?f=7&t=49&p=174&hilit=sigma#p174

Statistics: Posted by costaud — Thu Feb 05, 2015 11:57 am

Analog Pin for output

2015-02-02T04:04:52+08:00

Good Morning,

have we possible way for set GPIO PIN as Analog Pin out for examaple

0 until 3.3V by write a Value 0x00 until 0xFFFF / 0xFF

0 until 1.0V by write a Value 0x00 until 0xFFFF / 0xFF

Can you give a example how GPIO must be setting?

Thank you!

Ann

Statistics: Posted by Guest — Mon Feb 02, 2015 4:04 am