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ESP32-PICO-D4 and 1.8V
Posted: Fri Jan 28, 2022 10:49 pm
by x_arrange
Hi all,
I'm want to connect ESP32-PICO-D4 to 1.8V peripheral but I'm a bit confused.
Is it possible to provide 3.3V only for VDDA and VDDA3P3 and 1.8V to VDD3P3_CPU so that GPIO's be 1.8V ?
Re: ESP32-PICO-D4 and 1.8V
Posted: Tue Feb 01, 2022 6:07 pm
by x_arrange
anybody?
Re: ESP32-PICO-D4 and 1.8V
Posted: Wed Feb 02, 2022 2:59 am
by ESP_Sprite
I see nothing in the datasheet that prohibits this, although keep in mind that this is not a common configuration (as in: I have never seen someone else try this before) and it only gives you 5 GPIOs running at that voltage.
Re: ESP32-PICO-D4 and 1.8V
Posted: Wed Feb 02, 2022 8:54 am
by x_arrange
Yes, that's what I thought. Thanks for confirming.
Since I'll be the first who's trying will update here about results
The GPIOs that you mentioned are 5, 18, 21, 22 and 23. Right?
Re: ESP32-PICO-D4 and 1.8V
Posted: Wed Feb 02, 2022 12:01 pm
by ESP_Sprite
There's a few more IOs under that power domain... I see 1, 3, 5, 18, 19, 21, 22 and 23 here. (1 and 3 are TxD0 and RxD0, respectively.)