Hey there, I am using a SX1728 Breakout V1.0 with an Arduino Nano. I’ve see threads around saying the Nano cannot shift 3.3v correctly, and it causes issues with the LoRa. Would this be affecting range? My Nano and LoRa module have been working fine, just the range is a bit smaller than I expected it to be. They are sending & receiving on both sides, and all I am having problems with is range. I decided to pick up some 3.3v regulators so I can use that with 4x AA batteries to power the LoRa separately from the Arduino. Would this fix the problems I am having? Would I also need a 3.3v Regulator on the ground going to the Nano? Does the module I have already support the 3.3v level shifting?
This is the module I am using at the moment: SX1278 LoRa Ra-02 433MHz Breakout v1.0 | Makerfabs
I also swapped out my antennas to something tuned for 433Mhz and I did notice a range increase. These are the antennas I got: 10pcs 2DB 433MHz GSM GPRS Antenna SMA male straight Connector 5CM for Ham Radio | eBay
Please let me know! Any help would be appreciated!