RFM69 range issues
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I configure the ESP8266 MQTT gateway using RFM69HW.
I define as follows
#define MY_RADIO_RFM69
#define MY_RFM69_FREQUENCY RF69_433MHZ
#define MY_IS_RFM69HW
#define MY_RFM69_NETWORKID 100
#define RF69_IRQ_PIN 4
#define RF69_SPI_CS 15
#define MY_RF69_IRQ_PIN RF69_IRQ_PIN
#define MY_RF69_SPI_CS RF69_SPI_CSFor node side, I use Promini ATMEGA328
#define MY_NODE_ID 7
#define MY_PARENT_NODE_ID 0
#define MY_RADIO_RFM69
#define MY_RFM69_FREQUENCY RF69_433MHZ
#define MY_IS_RFM69HW
#define MY_RFM69_NETWORKID 100
#define RF69_IRQ_PIN 2
#define RF69_SPI_CS 10
#define MY_RF69_IRQ_PIN RF69_IRQ_PIN
#define MY_RF69_SPI_CS RF69_SPI_CSBut, the node (Promini) can not communicate with the gateway
1487370 !TSM:FPAR:NO REPLY
1487372 TSM:FPAR
1487503 TSF:MSG:SEND,7-7-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
1489510 !TSM:FPAR:NO REPLY
1489512 TSM:FPAR
1489643 TSF:MSG:SEND,7-7-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
1491650 !TSM:FPAR:FAIL
1491652 TSM:FAIL:CNT=7
1491654 TSM:FAIL:PDTIs there any hint to do ?
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@maman Try to downgrade to 2.0.0 if you are using any newer lib.
The newer libs over 2.0.0 does not work for my esp8266 mqtt gateway either. -
@mihai-aldea I've bought the same modules from the same supplier.
Initially I had the same problems you mention.
My advice: start with the simple lowpowerlab library and their sender/receiver sketches. Use some form of ground plane directly under the module, I've ended up with small pieces of metal sheet under the modules, otherwise I had no reception. Or use a diploe as pictured earlier.
By the way try touching the antenna at different points maybe you will get reception. The antenna length must be tuned to the circuit, I ended up with 96mm for one particular 868Mhz module, either the tuning circuit is flawed or my circuit messes up the antenna tuning.
You can also check the interrupt gets triggered or simply use polling by calling the interrupt handler function inside the receiveDone() function to be sure you don't miss received packages (I work with Mega2560 which are not configured correctly in the library for pin2/int4).
And please use some level shifters :)Hi @executivul ,
You mentioned in your post that the length of the antenna must be tuned to the circuit - would you mind sharing the process to do the tuning?
Thanks!
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Hi @executivul ,
You mentioned in your post that the length of the antenna must be tuned to the circuit - would you mind sharing the process to do the tuning?
Thanks!
@manutremo said in RFM69 range issues:
Hi @executivul ,
You mentioned in your post that the length of the antenna must be tuned to the circuit - would you mind sharing the process to do the tuning?https://www.mysensors.org/build/connect_radio
Down near the bottom of the page is the lengths of antenna needed for the three primary frequencies used by the RFM board.
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@manutremo said in RFM69 range issues:
Hi @executivul ,
You mentioned in your post that the length of the antenna must be tuned to the circuit - would you mind sharing the process to do the tuning?https://www.mysensors.org/build/connect_radio
Down near the bottom of the page is the lengths of antenna needed for the three primary frequencies used by the RFM board.
