💬 Connecting the Radio

[korttoma]

@rmtucker

You add the #define to your sketch

Hi @scalz ,
Will a RFM69HW work without the "#define MY_IS_RFM69HW" ?

What exactly does this #define do for the HW version?

Have only used RFM69W so far but have ordered some HW now also.

[scalz]

to your GW sketch.
Also, for using RFM69H you need this define,else the radio can't work properly. This allow us to set the right Radio power level registers in lib.
@korttoma just curious :) Have you tried my rfm69 repo?

[korttoma]

@scalz
So does a H version radio work if you do not set the high power registers?

@scalz said:

@korttoma just curious Have you tried my rfm69 repo?

Sorry, I have not yet had the opportunity to test your repo. There is so much non MySensors activities now when Christmas is approaching.

[pepson]

With radio RFM69HW for gateway sketch should looks as:

/**

• The MySensors Arduino library handles the wireless radio link and protocol
• between your home built sensors/actuators and HA controller of choice.
• The sensors forms a self healing radio network with optional repeaters. Each
• repeater and gateway builds a routing tables in EEPROM which keeps track of the
• network topology allowing messages to be routed to nodes.
• Created by Henrik Ekblad henrik.ekblad@mysensors.org
• Copyright (C) 2013-2015 Sensnology AB
• Full contributor list: https://github.com/mysensors/Arduino/graphs/contributors
• Documentation: http://www.mysensors.org
• Support Forum: http://forum.mysensors.org
• This program is free software; you can redistribute it and/or
• modify it under the terms of the GNU General Public License
• version 2 as published by the Free Software Foundation.

---

• DESCRIPTION
• The ArduinoGateway prints data received from sensors on the serial link.
• The gateway accepts input on seral which will be sent out on radio network.
• The GW code is designed for Arduino Nano 328p / 16MHz
• Wire connections (OPTIONAL):
• • Inclusion button should be connected between digital pin 3 and GND
• • RX/TX/ERR leds need to be connected between +5V (anode) and digital pin 6/5/4 with resistor 270-330R in a series
• LEDs (OPTIONAL):
• • To use the feature, uncomment any of the MY_DEFAULT_xx_LED_PINs
• • RX (green) - blink fast on radio message recieved. In inclusion mode will blink fast only on presentation recieved
• • TX (yellow) - blink fast on radio message transmitted. In inclusion mode will blink slowly
• • ERR (red) - fast blink on error during transmission error or recieve crc error

*/

// Enable debug prints to serial monitor
#define MY_DEBUG

// Enable and select radio type attached
//#define MY_RADIO_NRF24
#define MY_RADIO_RFM69
#define MY_IS_RFM69HW

// Set LOW transmit power level as default, if you have an amplified NRF-module and
// power your radio separately with a good regulator you can turn up PA level.
//#define MY_RF24_PA_LEVEL RF24_PA_LOW

// Enable serial gateway
#define MY_GATEWAY_SERIAL

// Define a lower baud rate for Arduino's running on 8 MHz (Arduino Pro Mini 3.3V & SenseBender)
#if F_CPU == 8000000L
#define MY_BAUD_RATE 38400
#endif

// Enable inclusion mode
#define MY_INCLUSION_MODE_FEATURE
// Enable Inclusion mode button on gateway
//#define MY_INCLUSION_BUTTON_FEATURE

// Inverses behavior of inclusion button (if using external pullup)
//#define MY_INCLUSION_BUTTON_EXTERNAL_PULLUP

// Set inclusion mode duration (in seconds)
#define MY_INCLUSION_MODE_DURATION 60
// Digital pin used for inclusion mode button
//#define MY_INCLUSION_MODE_BUTTON_PIN 3

// Set blinking period
#define MY_DEFAULT_LED_BLINK_PERIOD 300

// Inverses the behavior of leds
//#define MY_WITH_LEDS_BLINKING_INVERSE

// Flash leds on rx/tx/err
// Uncomment to override default HW configurations
//#define MY_DEFAULT_ERR_LED_PIN 4 // Error led pin
//#define MY_DEFAULT_RX_LED_PIN 6 // Receive led pin
//#define MY_DEFAULT_TX_LED_PIN 5 // the PCB, on board LED

#include <MySensors.h>

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

void presentation() {
// Present locally attached sensors

// Send the sketch version information to the gateway and Controller
sendSketchInfo("MySensors Serial Gateway", "2.0.0");
}

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

?????

[scalz]

@pepson if you're using an Arduino Mini pro or equivalent, and follow the recommanded wiring for the radio (CS and INT), looks ok to me.

@korttoma oki. no it won't work if the define is not set for HW version, and vice versa. Because the W and HW use different registers for setting power levels

[pepson]

Now i test it on Arduino nano byt finally i want use it on Arduino Mini Pro. Wirering i use as show on this page.

[scalz]

@pepson oki. But you've not explained what's your problem, without logs etc..

[pepson]

Now any problem. I only need info how write sketch to use radio RFM69HW.

[rmtucker]

@scalz
Is there an instruction to alter the power level on the RFM69?
From inside a mysensors sketch like the NRF24_PA_level?

[scalz]

@rmtucker no not yet (not sure, i need to check). But yes, in the next release ;)

[gvorster]

@pepson said:

Now any problem. I only need info how write sketch to use radio RFM69HW.

Try the MockMySensors.ino sketch and enable a few sensors.

[pepson]

Good will be add manual how in sketch change level for RFM69HW when new version released. I know that should be released on chrismass

[scalz]

@pepson if you have been kind this year, perhaps :laughing:

[martins]

I'm having trouble with the distance between my 2 RFM69 radios. If I use this tutorial and change the frequency to 433 mhz I get distances of up to 10 meters - https://learn.adafruit.com/adafruit-rfm69hcw-and-rfm96-rfm95-rfm98-lora-packet-padio-breakouts/rfm69-test

However if I use the Mysensor libraries for the SerialGateway and the door sensor I don't even get 1 meter.
I tried to declare these variables as well but no success.

#define RFM69_FREQUENCY RF69_433MHZ
#define IS_RFM69HW

Any suggestions I might try out?

Thanks,
Martin

[pepson]

If i buy from aliexpress RFM69HW and when buy i select to seller info that i want 868MHz and on PCB RFM69HW has select/write 868MHz in sketch i must use item:
#define RFM69_FREQUENCY RF69_868MHZ ?

[martins]

@martins

Solved. This is the extra variables for the RFM69H / HW versions and to set the frequency.

#define MY_RFM69_FREQUENCY RF69_433MHZ
#define MY_IS_RFM69HW

Range is now acceptible.

Regards,
Martin

[martins]

@pepson

From library API:

MY_RFM69_FREQUENCY RF69_868MHZ For other frequency, add this define to your sketch and set it to your preferred value in RF69_433MHZ, RF69_868MHZ or RF69_915MHZ

So it seems that 868MHZ is the default value.

Regards

[pepson]

Ok thanks

[LaMB95]

I m getting symbols when I send Hello World message from Arduino Uno to an Arduino Pro Mini (5V).
Yes I have put an input of 3.3V to the pro mini.
Baud rate used is 9600.
Any clue why this is happening? I can provide the code.

[mfalkvidd]

@LaMB95 are you using a Pro Mini 5V 16MHz or Pro Mini 3.3V 8MHz?

If the wrong variant is selected in the Arduino IDE, all timings will be off, including the timings for serial communication.