Hello, I am a beginner in node red and would like to save the data from the dht22 sensor in mysql and display via chart. I have already tried a lot but unfortunately without success.
@iguaan I have it wrapped as you mentioned and soldered to the ground. Curiously enough I have the PA set to HIGH (had it set to LOW), but from my understanding, by setting it to HIGH the "power" of the antena is better no?, hence the reception should be better. or what am I missing?
Thanks for the feedback as well
@mariusl said in Gateway sends NACK to node:
Any ideas from someone on this?
#define MY_TRANSPORT_STATE_TIMEOUT_MS (5*1000ul)
//#define MY_RFM95_MODEM_CONFIGRUATION RFM95_BW125CR45SF1288
#define MY_RFM95_MODEM_CONFIGRUATION RFM95_BW125CR48SF4096
These lines can affect. the TRANSPORT_STATE_TIMEOUT may be less than a actual message sending time. you will get constant NACK's.
This seems to be a fairly common problem with PIR motion sensors.
One trick is to add a short sleep statement before your final one to let all the voltages settle:
// Short sleep to let voltages settle (change duration as needed)
sleep(500);
// Sleep until interrupt comes in on motion sensor. Send update every ten seconds for testing.
sleep(digitalPinToInterrupt(DIGITAL_INPUT_SENSOR), CHANGE, 10000);
code_text
@ctodor said in Gateway doesn't receive any message from node:
broken only on the "send side"
As @mfalkvidd said, it is possible to burn with no antenna attached but I never actually did that. RFM is quite reliable. Is Schematics available? I see you have reset pad soldered. reset should be disconnected after reset is completed.
