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💬 NRF24L01 shield for Arduino Uno (for MySensors gateway)

openhardware.io 13 Feb 2019, 21:39 last edited by

https://www.openhardware.io/view/671/NRF24L01-shield-for-Arduino-Uno-for-MySensors-gateway
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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; }
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I recently build successfully a mysensor node based on an Arduino Uno, a Robolink IR sensor and a Robolink DHT11 sensor. The last two from an Elektor sensor kit ever bought for my son when he was still interested by electronics . My controller is Home Assistant, so I did a merge of the given MySensors example sketch and the Home Assistant example sketch together with the DHT11 sketch. The airco is a Samsung one, so in the sketch you will find these defines uncommented. Replace by your airco manufacturer. People interested in building one, can find my sketch on https://github.com/ericvb/MySensorsArduinoSketches @ToniA a big thanks for the work to decode all these IR sequences!
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@magpern said in MyQTherm - replace IQTherm heating thermostat: I actually am thinking somewhat in the line of discontinuing mysensors network. It is to much, hacks and tricks, and I forget everything in between sessions. I gave up more than once, also over period of years. Recently I came back again and decided to focus on the heart of the issue, getting my radios working and once you get over that, it starts to get fun again. I can respect if you already moved on to something else. I even cheated on MySensors and installed some 433 mhz devices too , just to get something working. You have to keep your interest in HA alive in the meantime. But the reward is great when you get MySensors working. There are "easier" solutions like Tasmota, 433mhz, etc. but not as customizable as MySensors. MySensors is for when you outgrow those other solutions and need something more custom.

💬 NRF24L01 shield for Arduino Uno (for MySensors gateway)

Suggested Topics

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OpenHardware.io • mysensors thermostat heating radiator iqtherm • 19 Apr 2017, 17:57 • openhardware.io 21 Jun 2020, 17:16

0
Online

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Users

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💬 NRF24L01 shield for Arduino Uno (for MySensors gateway)

Suggested Topics

Power Meter Pulse Sensor for multiple meters My Project • mysensors • 23 Sept 2020, 11:57 • frydrik 23 Sept 2020, 11:57

💬 NModule Two buttons capacitive touch switch shield OpenHardware.io • mysensors contest2017 switch nmodule capacitive touche • 29 May 2017, 18:33 • openhardware.io 7 Jun 2017, 13:07

Does MySensors require Arduino Timer 2? Hardware • mysensors interrupt nano interrupts esp • 6 Jan 2024, 19:39 • OldSurferDude 11 Jan 2024, 04:39

💬 MSMDLed OpenHardware.io • mysensors controller led • 27 Dec 2018, 11:02 • openhardware.io 27 Dec 2018, 11:02

💬 Heatpump / airconditioner controller OpenHardware.io • mysensors contest2016 infrared heatpump • 13 Mar 2016, 09:35 • openhardware.io 3 May 2020, 10:03

💬 Openhab 2 Mysensors smart chicken coop OpenHardware.io • mysensors nrf24l01 openhab contest2017 ds18b20 pir dht22 rpi gateway mega 2560 limit switch chicken coop • 2 Mar 2017, 17:02 • openhardware.io 2 Mar 2017, 17:02

💬 MyQTherm - replace IQTherm heating thermostat OpenHardware.io • mysensors thermostat heating radiator iqtherm • 19 Apr 2017, 17:57 • openhardware.io 21 Jun 2020, 17:16

0Online

11.5kUsers

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Power Meter Pulse Sensor for multiple meters
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💬 NModule Two buttons capacitive touch switch shield
OpenHardware.io • mysensors contest2017 switch nmodule capacitive touche • 29 May 2017, 18:33 • openhardware.io 7 Jun 2017, 13:07

Does MySensors require Arduino Timer 2?
Hardware • mysensors interrupt nano interrupts esp • 6 Jan 2024, 19:39 • OldSurferDude 11 Jan 2024, 04:39

💬 MSMDLed
OpenHardware.io • mysensors controller led • 27 Dec 2018, 11:02 • openhardware.io 27 Dec 2018, 11:02

💬 Heatpump / airconditioner controller
OpenHardware.io • mysensors contest2016 infrared heatpump • 13 Mar 2016, 09:35 • openhardware.io 3 May 2020, 10:03

💬 Openhab 2 Mysensors smart chicken coop
OpenHardware.io • mysensors nrf24l01 openhab contest2017 ds18b20 pir dht22 rpi gateway mega 2560 limit switch chicken coop • 2 Mar 2017, 17:02 • openhardware.io 2 Mar 2017, 17:02

💬 MyQTherm - replace IQTherm heating thermostat
OpenHardware.io • mysensors thermostat heating radiator iqtherm • 19 Apr 2017, 17:57 • openhardware.io 21 Jun 2020, 17:16

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Online

11.5k
Users

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Topics

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Posts