Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you may not be able to execute some actions.

Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).

Ultimate nRF24L01 range comparison (not my work but very good on different radios and antennas)

csa02221862 last edited by

Ultimate nRF24L01 range comparison – 38:17
— iforce2d

This is an excellent comparison of 4 radios and a slew of antennas.
Reply Quote 0
1 Reply Last reply

1
Posts

702
Views

Suggested Topics

Over the air updates
General Discussion • • ToSa

87

1
Votes

87
Posts

50410
Views

I would really like to get OTA working here as it's freezing outside and I have to go there to update the software in the greenhouse control system. So please, can we have a 'how to' step-by-step guide to OTA? Please? S.
Sensors and more
Hardware • • Robert Leverett

1

0
Votes

1
Posts

15
Views

No one has replied
Does MySensors require Arduino Timer 2?
Hardware • mysensors interrupt nano interrupts esp • • OldSurferDude

2

0
Votes

2
Posts

21
Views

I have success! (oops, that's suppose to be Timer1) I only sample for 1/60 of a second. What I did was to back up all the timer registered I used and then resorted them after I was done sampling. (As opposed to initializing the registers in setup and then starting the timer when needed.) Now I have a Nano sampling the data and sending it to a MySensors Gateway on an RPi3B+ which then sends it to an MQTT broker runing on an old laptop. Also running on the laptop is Home Assistant running inside of VirtualBox. If MySensors does use Timer1, it appears that restoring the registers allows it to be shared. //------------------------------------------------------ISR ISR(TIMER1_OVF_vect){ // interrupt service routine for overflow TCNT1 = TimerPreloadValue; // must be first line! starts the timer counting again digitalWrite(TRIGGER_START_SAMPLE_PIN,HIGH); samplesVolts[--sample]=analogRead(VOLTS_IN_PIN); // decrement before capturing samplesCurrent[sample]=analogRead(CURRENT_IN_PIN); digitalWrite(TRIGGER_START_SAMPLE_PIN,LOW); if (!sample){ // count down to zero digitalWrite(TRIGGER_START_SAMPLE_PERIOD_PIN,LOW); // indicate that sampling is complete samplingEnd = micros(); TCCR1B &= 248; // turns off timer } } //------------------------------------------------------sampleOneCycle void sampleOneCycle(){ // back up timer registers uint8_t TCNT1_b = TCNT1; uint8_t TCCR1B_b = TCCR1B; uint8_t TCCR1A_b = TCCR1A; uint8_t TIMSK1_b = TIMSK1; // configure timer which starts the sampling noInterrupts(); // disable all interrupts TCCR1A = 0; TCCR1B = 0; TCNT1 = TimerPreloadValue; // preload timer //TCCR1B |= (1 << CS10)|(1 << CS12); // 1024 prescaler TCCR1B &= 248; // turns off timer? TIMSK1 |= (1 << TOIE1); // enable timer overflow interrupt ISR // demark sampling sample = NUMBER_OF_SAMPLES; // count down to zero digitalWrite(TRIGGER_START_SAMPLE_PERIOD_PIN,HIGH); samplingStart = micros(); TCNT1 = 65535; // first trigger right away! TCCR1B |= 1; // turns on timer interrupts(); // enable all interrupts // wait for sampling to be complete while(digitalRead(TRIGGER_START_SAMPLE_PERIOD_PIN)){}; samplingEnd = micros(); // restore timer registers TCNT1 = TCNT1_b; TCCR1B = TCCR1B_b; TCCR1A = TCCR1A_b; TIMSK1 = TIMSK1_b; }
New user has questions
Hardware • • Doggie

7

0
Votes

7
Posts

50
Views

I am new in this forum and I have a question regarding mysensors and iobroker. I did not work with mysensors up to now. Since some weeks I use iobroker installed on a raspberrypi. Now I want to integrate my 433 Mhz doorbell in iobroker. I know, that there is an adapter for mysensors in iobroker. My question is: Is it possible to get a notification in iobroker if someone is pressing the button on my doorbell? As I understood, I have to connect the receiver to an arduino nano and connect the arduino to my rasberrypi on which iobroker is running.
hlk-pm01 are to noisy for rfm69?
Hardware • • Tmaster

5

0
Votes

5
Posts

27
Views

@Tmaster Never assume the original PCB was just a circuit of components, the PCB can incorporate RF shields and antenna radio ground planes...
Sleep mode for bmp280
Hardware • • fishermans

7

4
Votes

7
Posts

3282
Views

Just wanted to say thanks for this, it is still relevant and useful six years later !

Ultimate nRF24L01 range comparison (not my work but very good on different radios and antennas)

Suggested Topics

Over the air updates
General Discussion • • ToSa

Sensors and more
Hardware • • Robert Leverett

Does MySensors require Arduino Timer 2?
Hardware • mysensors interrupt nano interrupts esp • • OldSurferDude

New user has questions
Hardware • • Doggie

hlk-pm01 are to noisy for rfm69?
Hardware • • Tmaster

Sleep mode for bmp280
Hardware • • fishermans

40
Online

11.4k
Users

11.1k
Topics

112.7k
Posts

Ultimate nRF24L01 range comparison (not my work but very good on different radios and antennas)

Suggested Topics

Over the air updates General Discussion • • ToSa

Sensors and more Hardware • • Robert Leverett

Does MySensors require Arduino Timer 2? Hardware • mysensors interrupt nano interrupts esp • • OldSurferDude

New user has questions Hardware • • Doggie

hlk-pm01 are to noisy for rfm69? Hardware • • Tmaster

Sleep mode for bmp280 Hardware • • fishermans

40Online

11.4kUsers

11.1kTopics

112.7kPosts

Over the air updates
General Discussion • • ToSa

Sensors and more
Hardware • • Robert Leverett

Does MySensors require Arduino Timer 2?
Hardware • mysensors interrupt nano interrupts esp • • OldSurferDude

New user has questions
Hardware • • Doggie

hlk-pm01 are to noisy for rfm69?
Hardware • • Tmaster

Sleep mode for bmp280
Hardware • • fishermans

40
Online

11.4k
Users

11.1k
Topics

112.7k
Posts