Paolo Bonelli asked 10 months ago
Hi, I am following the tutorial “Learn LVGL…” and I am learning to make charts from sensor data. Now I would like to connect a SX1276 LoRa module to the ESP32 inside the TFT display for plotting data received from LoRa transmission. The module uses an SPI interface. What do you think about it. Is it feasible?
Thankyou
Paolo
Sara Santos Staff answered 10 months ago
Hi.
Yes. That is feasible, but
The CYD board has limited availability of external GPIOs, which might be challenging to connect a LoRa module, which requires SPI protocol. There are several alternatives in this scenario:
– Connect to another ESP32 board via TX/RX (which just requires two GPIOs)
– Use an ESP32 with more GPIOs and a separate display, so that you have enough pins to connect a LoRa module
– expose the microSD card GPIOs and try to use those to connect the module
Regards,
Sara