Problem initing LoRa with other SPI-externals

#1

Hi,

I’m trying to build an ESP LoRa with an E-Paper-Display and a microSD-breakout. Additionally I’m using the build-in OLED (Heltec WIFI LoRa V2) and an I2C Keyboard (which, I think, should not affect the SPI).

So far so good, every component work for itself and also display wiht LoRa and Display with microSD.

But if I try to fit all three components together LORA stops initializing at Radio.Init(&RadioEvents);

When I physically detach the microSD-breakout, to initialization continues and the to other components work fine.

Do you have any ideas?

Libraries:
Lora: Heltec\ESP23_LoRaWAN^2.1.1
E-Paper: ZingJM\GxEPD2^1.3.6
microSD: FS.h, SD.h, … (pre-installed)

Chipselects:
LORA: Internal
EPD: 2
microSD: 23
The microSD-breakout is from kwmobile.

Thanks in advance
sut_2

#2

Be careful not to occupy LoRa’s SPI.

#3

Is it possible to not occupie LORA’S SPI with other externals?

So can I use 2 SPI lines?

#4

As long as it does not occupy the LoRa pins.