Posts made by wiredfrank

@mfalkvidd i was referring to un-shielded NRF24L01+PA-LNA radio modules. for me they never worked and even those ones worked had very power reception even in same room.

sorry i wasn't clear in my reply, in my country 868MHz is listed allowed frequency.

@zboblamont thank you, i think part of my problem might be allowed frequency is 868MHz as compare with mine 433MHz (school boy error) i have ordered 898MHz module and i will give them try.

i always had problem with that nrf pa lna, i suggest to get this one nRF24L01 PA LNA from Aliexpress
and thank me later. those type you have in your link are nothing but problem, i have few if anyone wants let me know pay me shipping and they are yours.

Thank you everyone for reply, i been searching around for antenna and how to test them and came across this guy.
#191 Optimizing Antennas using a cheap N1201SA VNA (Vector Impedance Analyzer), LoRa, Review – 16:29
— Andreas Spiess

i m thinking to buy one of these VNA as i m shooting in dark with antenna right now and no way of knowing what is going on under the hood, i dont mind spending more to get miniVNA Tiny+ but what you experts think?

Thank you for suggestion, is there any sketch for ping pong type communicate to do some testing?

i tried both radio types but can not get range more than 20m max in open air, tried coil type antenna, and all sorts things including capacitor from 10uf to 100uf, i m sure there is something missing in my setup i just dont know what it is, even nrf with pcb antenna perform better in open air, i wonder if any one even using rfm69 at all or it just me banging my head around.

@mfalkvidd thank you for quick reply, that was my copy/paste as my code is mess and i tried to paste as clean as i could hence this mistake, but i m using RFM69 radio. if rfm69 isnt lora radio then it mean range isn't going to be more then 15 to 20metter ? may be this is the problem? should i switch to rfm 95 for longer range? (i feel stupid now)

Gateway powered on and this is on serial output

MCO:BGN:INIT GW,CP=RPNGE---,REL=255,VER=2.3.1
109 TSF:LRT:OK
125 TSM:INIT
139 TSF:WUR:MS=0
157 TSM:INIT:TSP OK
scandone
state: 0 -> 2 (b0)
state: 2 -> 3 (0)
state: 3 -> 5 (10)
add 0
aid 7
cnt
connected with wifinet, channel 7
dhcp client start...
ip:192.168.1.5,mask:255.255.255.0,gw:192.168.1.1
372 TSM:INIT:GW MODE
394 TSM:READY:ID=0,PAR=0,DIS=0
427 MCO:REG:NOT NEEDED
451 MCO:BGN:STP
545 MCO:BGN:INIT OK,TSP=1
629 TSM:READY:NWD REQ
1156 TSF:MSG:SEND,0-0-255-255,s=255,c=3,t=20,pt=0,l=0,sg=0,ft=0,st=OK:

sensors powered on and on gateway

96189 TSF:MSG:READ,30-30-255,s=255,c=3,t=7,pt=0,l=0,sg=0:
96250 TSF:MSG:BC
96268 TSF:MSG:FPAR REQ,ID=30
96298 TSF:PNG:SEND,TO=0
96323 TSF:CKU:OK
96341 TSF:MSG:GWL OK
96980 TSF:MSG:SEND,0-0-30-30,s=255,c=3,t=8,pt=1,l=1,sg=0,ft=0,st=OK:0
98261 TSF:MSG:READ,30-30-0,s=255,c=3,t=24,pt=1,l=1,sg=0:1
98322 TSF:MSG:PINGED,ID=30,HP=1
99128 TSF:MSG:SEND,0-0-30-30,s=255,c=3,t=25,pt=1,l=1,sg=0,ft=0,st=OK:1
99256 TSF:MSG:READ,30-30-0,s=255,c=3,t=15,pt=6,l=2,sg=0:0100
100031 TSF:MSG:SEND,0-0-30-30,s=255,c=3,t=15,pt=6,l=2,sg=0,ft=0,st=OK:0100
100662 TSF:MSG:READ,30-30-0,s=255,c=0,t=17,pt=0,l=5,sg=0:2.3.1
101229 TSF:MSG:READ,30-30-0,s=255,c=3,t=6,pt=1,l=1,sg=0:0
103299 TSF:MSG:READ,30-30-0,s=255,c=3,t=11,pt=0,l=18,sg=0:Temperature Sensor
103867 TSF:MSG:READ,30-30-0,s=255,c=3,t=12,pt=0,l=4,sg=0:0.01
105334 TSF:MSG:READ,30-30-0,s=0,c=0,t=6,pt=0,l=0,sg=0:
106400 TSF:MSG:READ,30-30-0,s=255,c=3,t=26,pt=1,l=1,sg=0:2
107440 TSF:MSG:SEND,0-0-30-30,s=255,c=3,t=27,pt=1,l=1,sg=0,ft=0,st=OK:1
108074 TSF:MSG:READ,30-30-0,s=1,c=1,t=38,pt=7,l=5,sg=0:5.80
108643 TSF:MSG:READ,30-30-0,s=255,c=3,t=0,pt=1,l=1,sg=0:164
109530 TSF:MSG:READ,30-30-0,s=0,c=1,t=0,pt=7,l=5,sg=0:21.0
165820 TSF:MSG:READ,30-30-0,s=1,c=1,t=38,pt=7,l=5,sg=0:4.72
166505 TSF:MSG:READ,30-30-0,s=255,c=3,t=0,pt=1,l=1,sg=0:110
167395 TSF:MSG:READ,30-30-0,s=0,c=1,t=0,pt=7,l=5,sg=0:20.8

Hi all,
First of all thank you for such great work. i been reading a lot on forum lately for different type of ideas and making my wireless communication work better or should i say reliably and today i plunge to register account and dear to ask question that might be very stupid or basic for all the black belt on this forum. so please go easy on me.

i have been testing nrf radio with esp8266 (gateway) and battery powered nodes but i can not get them to work through the solid walls so i decided to give try to RFM 433mhz radio but again failure.

so i m thinking i must be doing something wrong here, i watched tons of video on youtube about lora radio where people have achieved range in kilometres but i can not get range on these radio more than 20 meters, in example folder all examples are based on nrf radio. so if you can please guide me what i m doing wrong here or i m using wrong radio or wrong radio antenna. is there any sketch for gateway and for node to do some testing? also i have added 10uf and 100nf radio

Gateway esp8266 with RFM69HCW https://www.aliexpress.com/item/32878809891.html
Gateway Antena:
https://www.aliexpress.com/item/32806809309.html
https://www.aliexpress.com/item/32958576484.html
https://www.aliexpress.com/item/33036097576.html

Node with RFM69CW https://www.aliexpress.com/item/32887379895.html
Node Antena :
https://www.aliexpress.com/item/32970025687.html
https://www.aliexpress.com/item/32511929185.html

Gateway Sketch

// Enable debug prints to serial monitor
#define MY_DEBUG

// Use a bit lower baudrate for serial prints on ESP8266 than default in MyConfig.h
#define MY_BAUD_RATE 9600

#ifdef ESP8266
// For RFM69
#define MY_RADIO_RFM69
#define MY_RFM69_FREQUENCY RFM69_433MHZ // Set your frequency here
#define MY_IS_RFM69HW // Omit if your RFM is not "H"
#define MY_RFM69_IRQ_PIN D1
#define MY_RFM69_IRQ_NUM MY_RFM69_IRQ_PIN
#define MY_RFM69_CS_PIN D8 // NSS. Use MY_RFM69_SPI_CS for older versions (before 2.2.0)

// For RFM95
#define MY_RADIO_RFM95
#define MY_RFM95_IRQ_PIN D1
#define MY_RFM95_IRQ_NUM MY_RFM95_IRQ_PIN
#define MY_RFM95_CS_PIN D8
#endif

#define MY_GATEWAY_ESP8266

#define MY_WIFI_SSID "MySSID"
#define MY_WIFI_PASSWORD "MyVerySecretPassword"

// Set the hostname for the WiFi Client. This is the hostname
// it will pass to the DHCP server if not static.
#define MY_HOSTNAME "ESP8266_GW"

// The port to keep open on node server mode
#define MY_PORT 5003

// How many clients should be able to connect to this gateway (default 1)
#define MY_GATEWAY_MAX_CLIENTS 2


#include <MySensors.h>

void setup()
{
	// Setup locally attached sensors
}

void presentation()
{
	// Present locally attached sensors here
}

void loop()
{
	// Send locally attached sensors data here
}

Sketch for Temperature Sensor node

// Enable debug prints to serial monitor
#define MY_DEBUG 

#define MY_RADIO_RFM69
#define MY_RFM69_NEW_DRIVER
#define MY_RFM69_FREQUENCY RFM69_433MHZ
#define MY_IS_RFM69HW

#include <MySensors.h>  
#include <DallasTemperature.h>
#include <OneWire.h>

#define COMPARE_TEMP 1 // Send temperature only if changed? 1 = Yes 0 = No

#define ONE_WIRE_BUS 3 // Pin where dallase sensor is connected 
#define MAX_ATTACHED_DS18B20 16
unsigned long SLEEP_TIME = 30000; // Sleep time between reads (in milliseconds)
OneWire oneWire(ONE_WIRE_BUS); // Setup a oneWire instance to communicate with any OneWire devices (not just Maxim/Dallas temperature ICs)
DallasTemperature sensors(&oneWire); // Pass the oneWire reference to Dallas Temperature. 
float lastTemperature[MAX_ATTACHED_DS18B20];
int numSensors=0;
bool receivedConfig = false;
bool metric = true;
// Initialize temperature message
MyMessage msg(0,V_TEMP);

void before()
{
  // Startup up the OneWire library
  sensors.begin();
}

void setup()  
{ 
  // requestTemperatures() will not block current thread
  sensors.setWaitForConversion(false);
}

void presentation() {
  // Send the sketch version information to the gateway and Controller
  sendSketchInfo("Temperature Sensor", "1");

  // Fetch the number of attached temperature sensors  
  numSensors = sensors.getDeviceCount();

  // Present all sensors to controller
  for (int i=0; i<numSensors && i<MAX_ATTACHED_DS18B20; i++) {   
     present(i, S_TEMP);
  }
}

void loop()     
{     
  // Fetch temperatures from Dallas sensors
  sensors.requestTemperatures();

  // query conversion time and sleep until conversion completed
  int16_t conversionTime = sensors.millisToWaitForConversion(sensors.getResolution());
  // sleep() call can be replaced by wait() call if node need to process incoming messages (or if node is repeater)
  sleep(conversionTime);

  // Read temperatures and send them to controller 
  for (int i=0; i<numSensors && i<MAX_ATTACHED_DS18B20; i++) {
 
    // Fetch and round temperature to one decimal
    float temperature = static_cast<float>(static_cast<int>((getControllerConfig().isMetric?sensors.getTempCByIndex(i):sensors.getTempFByIndex(i)) * 10.)) / 10.;
 
    // Only send data if temperature has changed and no error
    #if COMPARE_TEMP == 1
    if (lastTemperature[i] != temperature && temperature != -127.00 && temperature != 85.00) {
    #else
    if (temperature != -127.00 && temperature != 85.00) {
    #endif
 
      // Send in the new temperature
      send(msg.setSensor(i).set(temperature,1));
      // Save new temperatures for next compare
      lastTemperature[i]=temperature;
    }
  }
  sleep(SLEEP_TIME);
}