Hi Felix,
thanks for the quick reply.
At the moment I have a Moteiono sending a message containing different sensor data like this: "-15,100,10,252,z"
sprintf(sendBuf, "%s,%s,%s,%s,z", tempStr, humStr, uvStr, capStr);
sendLen = strlen(sendBuf);
if (radio.sendWithRetry(INT_NODEID, sendBuf, sendLen))
and on the receiving node:
for (byte i = 0; i < radio.DATALEN; i++){
char ch = radio.DATA[i];
Now I want to add an other sender to the network. I haven't written the code yet, but the idea is to read every few seconds from a INA219, accumulate the data in the two dim array (current, voltage), send this data every 15 min. So the array would be in C, no JSON. I can keep similar code for receving the data, or change it, no problem.