Lora Ra-02 + Arduino Problem

Submitted by Filip on

Hi Guys!
First of all I would like to thank You for having me here. 
Hopefully I make a post on a propper site. 

I was trying to reach connection beetween two lora ra-01 modules which were connected to the arduino's uno (non-oryginal). I did all as on the projcet documentation (https://circuitdigest.com/microcontroller-projects/arduino-lora-sx1278-…). 
First everything was fine, everything worked well. After several hours when I attempt to try connection on more time, everything crashed. I found a problem with sending packets (smts works, smts not), but main issue was about receiver. Used to be like receiver, received strange line of code going really fast on the screen or nothing is happining, just title "Lora Receiver". What I thought is that I burned out Lora modules somehow, so decided to buy lora ra-02 modules. Unfotunatly same problem works for couple minutes and then same issues. When I import code for several times in a row on an arduino it would work for a while. 
Help me please and Best Regards :)

Seems like a power related issues. What Power supply are you using?

  Joined February 12, 2018      696
Monday at 02:11 PM

I simply use normal usb-b cable connected to the PC. I've been trying to supply power by normal charger but still same problem. What should I use then? 

  Joined September 19, 2021      4
Sunday at 04:40 PM

What is the maximum power rating of the charger?

  Joined February 12, 2018      696
Monday at 02:11 PM

I have severals charger:
9V 1.67A
5V 2A
5V 1.55A (7.8W)
5V 1A
 

  Joined September 19, 2021      4
Sunday at 04:40 PM

THe module and the microocntroller works with 3.3V...how you converting the voltage from the charger?

  Joined February 12, 2018      696
Monday at 02:11 PM

I did not convert cause there is 3.3 V going from arduino pinout. Power suply which i attached was only to the arduino 

  Joined September 19, 2021      4
Sunday at 04:40 PM

Lora module Antenna is a crucial thing. If you are using the wrong antenna it will damage the module.

  Joined February 12, 2018      696
Monday at 02:11 PM