Hello, i am trying to get the SD Example working with the:
TTGO LoRa32 SX1276 OLED Board with Arduino IDE
board (TTGO LoRa32 SX1276 OLED Board Pinout and Use with Arduino IDE)
my SD CARD module is: AZDelivery SPI Reader Micro Memory SD TF Card Memory Card Shield Module Compatible with Arduino Includes E-Book : Amazon.de: Computer & Accessories
everytime i try to run the example it tells me that the Card Mount failed.
My PIN Connection is:
GND -> GND
VCC -> 5V
Miso -> GPIO19
Mosi -> GPIO 27
CLK -> GPIO 5
CS -> GPIO 18
with SD.begin(18) so there should be no Problem as well. I already tried initialising all pins again with spi.begin(5,19,27,18). I am super sure that i wirered everything correctly where is my misstake?
hope to hear from you guys soon.
A quick look at the pinot for the board you linked to suggests that pin 18 is used for the LORA radio.
what exactly does this mean and what do i need to change?
If you look on the TTGO web page you linked to in your first post, it shows which GPIO pins are already used to control the on-board radio and OLED. You need to pick a GPIO that isn't in use as your CS for your SD card module and pass that in the SD.begin() function call.
i already tried it with Pin 23, 12 and 13 are there Problems with these pins as well?
Those pins should be ok. However I think your board operates at 3.3v. Your SD adapter is generally used on 5v systems.
i am powering my sd card adapter with an powerbank to reach the needed voltage and provide 5V to the board. somehow when i use the 5v output on my chip it chows me a fatal error
Can you sketch out a diagram of how you have your SD card adapter connected to your TTGO.
i hope this does its job. i am sorry for late reply there was somethign more important at work and i couldnt get it done but i am very thankfull for your help!
i work with SPI.begin(5,19,27,23);
and with SD.begin(23);
