E190 / E213 / E290 ext. antenas y Wi-Fi and BLE at the same time

#1

Hi there

I’m to buy several nodes of heltec.
The manual, specs in heltec page and Q&A are very inconsistent!
I need to know if the following devices E190/ E213 / E290 have wifi & Lora ext antena connector (I-PEX) or only one of them I which one if so…
And also if they all can handle Wi-Fi and BLE at the same time because
on en E290 page there is the following:

Can ESP32’s WiFi and Bluetooth be used at the same time?
No, the WiFi LoRa 32 don’t have an external PSRAM, if your application need use Bluetooth and Wi-Fi at the same time, you can look into this product: Heltec Wireless Bridge.

But I heard it could be a cut&paste error from old device…

Can anyone confirm or refute the facts?

Thanks a lot in advance!

#2

The pictures of the boards vary but imply uFL connectors for both LoRa & ESP32 - but as some have PCB traces for the ESP32 you may find yourself having to move a tiny tiny resistor to switch from PCB trace to uFL.

As for BLE & WiFi, C3’s can do both but WiFi is very slow, S3’s can do both just fine. The task setup requires some research & effort to get going.