Cariboulite data transmission issue

Projects
1

Hello! It’s my first time here.
Im currently having an issue with the Cariboulite TXRX where I want to transmit binary data, but theirs no documentation or examples which I can follow at all for this in Python.
I have tried so many things at the moment, I just want to put in an array from 0 to 255, convert it to binary and transmit that data to a receiver.
This is currently the script I have, and Ive made sure I’m working in the license exempt band for the uk.

import numpy as np
import wave
from itertools import groupby
import SoapySDR
from SoapySDR import SOAPY_SDR_TX, SOAPY_SDR_CS16, SOAPY_SDR_CS8
import time
arraN = [1,2,4,8,16,32,64,128,255]
# make it one string
BinARray = []
for BinChunk in [format(x, '08b') for x in arraN]:
    for digit, group in groupby(BinChunk):
        BinARray.append([int(digit), len(list(group))])
print(BinARray)
# Setup SDR
sdr = SoapySDR.Device(dict(driver="Cariboulite", CW="1"))
sdr.setSampleRate(SOAPY_SDR_TX, 0, 1e6)
sdr.setBandwidth(SOAPY_SDR_TX, 0, 1e6)
sdr.setFrequency(SOAPY_SDR_TX, 0, 864.5e6)
sdr.setGain(SOAPY_SDR_TX, 0, 40)
tx_stream = sdr.setupStream(SOAPY_SDR_TX,  SOAPY_SDR_CS8, [0], {'CW': '1'})

sdr.activateStream(tx_stream)
for chunk in BinARray:
    print(chunk)
    if chunk[0] == 1:
        #print(f"1: {chunk[1]}")
        signal = np.tile(np.array([1]*chunk[1]), (2, 1)).T
        iq_signal = signal.astype(np.int16)
        #make np array
        for sig in iq_signal:
            sdr.setGain(SOAPY_SDR_TX, 0, 40)
            sdr.writeStream(tx_stream, [sig], len(iq_signal))
            time.sleep(0.1)
    else:
        for i in range(chunk[1]):
            sdr.setGain(SOAPY_SDR_TX, 0, 10)
            time.sleep(0.1)

sdr.deactivateStream(tx_stream)
sdr.closeStream(tx_stream)

Any help would be amazing.

2

In the bug report -

there is c++ sample program that works with the Cariboulite and it has a one to one to much of what you are doing, but the Cariboulite transmissions are messed up and they are looking into the problem.

3

ah that sucks, my university project has to be in within 30 days.
I’ll see if I can make a kind of working transmission using the continuous wave.
Im just wondering if their are other options than CW:1 tho

4

I’m afraid that this is not a MyriadRF project and if you could contact their product support and/or post in the associated community.

5

Ah im so sorry, i thought this was just an sdr forum