RN2483 PICTail + Arduino Node


(Kasper S) #1

Hello, i am trying to make a LoRa node, with a RN2483 PICTail board, and an Arduino.
And the node should be powered by a battery, so i can have it ex. in my car.

I have used this post, to get the Arduino code, and the connections to the RN2483 chip.

I then used the RN2483 PICTail userguide here, to find the pins on the board (page 20).

But i don't seem to get it to send.

Do i need to power the RN2483 board with USB and 3.3V from the arduino at the same time ??
And is what i have done even possible, or do i wreck the boards ??

Yesterday i updated the RN2483 to ver. 1.0.1

I've tried both with an Arduino Uno and Nano, the code works and i get feedback to the serial monitor.

Thanks in advance :slight_smile:

-KasperS


#2

the gnd's should be connected, if you use it in your car, you will need a DC / DC regulator to bring down the car battery voltage from 12 to 3V3


(Kasper S) #3

I would not use the car battery, but a 5v power bank to the arduino's usb.

I have connected the and from the RN2483 (pin 28) to god on the arduino, and the 3.3v (pin 26) to 3.3v on the arduino.


#4

what type of arduino ? because the 3v3 output on the arduino is maybe not strong enough for your rn2483

  • in the article it's an UNO I see now :innocent:

if you get feedback from the ide monitor it means that the connections Rx/Tx are good
you also have a new firmware version.

so what's the problem now ?
possibly something in your code, keys maybe ?


(Kasper S) #5

yes, it's an UNO, but i also tried an NANO.


(Kasper S) #7

i have been looking through the library that from the post i linked to, and it sends the same commands as when i just use a terminal on my mac and USB connection to the board.

My problem is that the board's led's do not light up at all when i connect it up like this:


but i can't see why i shouldn't be able to do it like this, in the user guide, it says that it can be powered by the usb or PIC connectors...


#8

ok.. so the board connected same way but to an usb serial works (ide terminal picture)

  • can you meassure if the rn2483 really is getting 3V3 ? (on the chip) like its connected now

(Kasper S) #9

i just tried to power the RN2483 board by USB (only 5v and GND) and the Arduino, but still nothing...

so i think it's the code that is the problem :disappointed_relieved:

i will try to do some measurements on the board, to see if i get the voltage i need..

  • I do get 3.3v at the chip, with only the Arduino to power the RN2483, so i think there is some problems with the code..

#10

I don't know that module, but if I look at the schematic, then I see that the RN2483 is stil connected, not only externly to your RxTx UNO but also to the usb serial.. and that chip still gets power to, could that be a 'conflict ?
are there jumpers somewhere on the board to disconnect ? just an idea .. :innocent:


(Kasper S) #11

I did not think about that.. :open_mouth:, i will have to check that.

There is only two jumpers, and they are for current measuring (top right of your pic.)

I also have to check that my arduino is working, because i have a slight suspicion that my arduino is faulty.

Thanks for your inputs @BoRRoZ :slight_smile:


#12

and don't forget that the UART voltage level is 3v3 (use levelshifter) between UNO and RN2483


(Sundari) #13

Hello sir,
Did you get the results for RN2483 PIC tail+ARDUINO?


(Kasper S) #14

Hello,
Yes, i got the PICtail to work with the arduino.

you need a Logic Level Shifter to transform the 5V signals from the arduino down to 3.3V for the RN2483

I will try to write a post this weekend, explaining what i did to make it work :slight_smile:


(Sundari) #15

Thank you so much.


(Adityakaranam) #16

guys i bought two RN2483 Pictail plus lora modules and i want to communicate P2P is it possible with this lora module? please help me in this, thankyou in advance