Updated First steps into APRS over LoRa (markdown)

First-steps-into-APRS-over-LoRa.md

@@ -24,7 +24,13 @@ LoRa modules support various SF (spreading factors) and various bandwidths, tabl
 ![](https://github.com/sh123/esp32_loraprs/blob/master/images/bandwidth_vs_sf.jpg)
 
 # ESP32 KISS bluetooth modem
-Test modem was constructed based on ESP32-WROOM dev board and custom made STX LoRa shield, based on Ra-02 SX1278 module.
+Test modem was constructed based on ESP32-WROOM dev board and custom made Ra-02 SX1278 shield. 3.3V/GND was provided from the ESP32. For data pinouts next connectivity was used from LoRa to ESP32, SS/RST/DIO0 could be overriden in software:
+- SS: GPIO_5
+- RST: GPIO_26
+- DIO0: GPIO_14
+- MOSI: GPIO_23/VSPI_MOSI
+- MISO: GPIO_19/VSPI_MISO
+- SCK: GPIO_18/VSPI_SCK
 
 ![](https://github.com/sh123/esp32_loraprs/blob/master/images/pinouts.png)