ESP32 Forum

Hello everyone!!!

I am going to play with WiFi connections with a device and I was thinking to use an ESP32..... in a sample article I read they were using ESP-01 module by AI-Thinker with those pins for firmware upgrade... Could you suggest me which one of those ESP32 series , which are newer than ESP-01 based on previous ESP8266's chipset, is comparable to AI-Thinker's ESP-01 module?

thanks a lot in advance!
Cheers!
npuleio

The pico D4 is an equivalent concept but in an even smaller package. They're amazing, but not easy to work with.

Hello jkingdon

thank you for your reply!! ...
I went looking on espressif's products about modules and I found that ESP32-PICO-D4 you suggested is a SoC instead a module which should be easier to manage than a SoC since it can just be connected to the UART of the device.... right?
In this case, about modules would be maybe ESP32-S2-WROOM-I / ESP32-S2-WROWER-I (I suppose ESP32-S2 are the newest...) the answer or is there different alternative module?

Thanks again1!
Cheers!
npuleio

The pico is exactly like a module from the electrical view point, with the same pin availability as the larger format modules. The only difference is the level of difficulty in connecting to it. There are no esp32 modules in the same form factor as the esp01 that I know of. Note that the S2 modules you mention are single core. I'd recommend using a dual core chip if you are going to esp32.

Ah, I forgot the ttgo micro32

http://www.lilygo.cn/prod_view.aspx?Typ ... t3:50033:3

Hi again jkindgon !!

I understand, so that means I'd should go for ESP32-WROVER-IE and its relative ESP32-DevKitC V4 so that would be dual core and looking at peripheral schematics there are those pins TXD0 and RXD0 that can be connected to a UART port of my device.... right?

Thanks again!
Cheers !

npuleio

Ah but wait!! jkingdon , I just read right now about this ttgo.... it looks like to be the relative module using the ESP32-PICO-D4 so I could use that just like as a module , right?

npuleio wrote: ↑

Tue Sep 08, 2020 3:14 pm

Ah but wait!! jkingdon , I just read right now about this ttgo.... it looks like to be the relative module using the ESP32-PICO-D4 so I could use that just like as a module , right?

Yes, just like the other modules but smaller. They all have three hardware serial ports that you can choose between.

jkingdon wrote: ↑

Tue Sep 08, 2020 3:25 pm

Yes, just like the other modules but smaller. They all have three hardware serial ports that you can choose between.

And if you know, does this TTGO support also cryptographic hardware during wifi connection like thos espressif ones?

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