NodeMCU ESP-12 PIR Sensor Publish to MQTT Broker on PI over Wifi
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Ok, I've read and read and cannot find a suitable example that will dumb it down enough for me to comprehend so here I am. :)
I currently have OpenHab and my MQTT Broker running on a RPi-3. I also have multiple RPi-3s in closets around the house / land connected to SainSmart 16 Channel relays to turn on and off various lights. All this is working great. Now I wanted to add PIR sensors to some rooms so if a kid forgets to turn off their lights the PIR can via MQTT to the same relays. Also I have a tremendous wifi and switched network backend all done via Ubiquitys Unifi Switches and various Ubiquity wifi devices, enough to cover my whole 10 acres.
Because I do a lot with drones I was limited in my ability to utilize most all frequencies, even 433mhz range on any devices. Since I have a great wifi setup it made the most sense for me to use NodeMCUs with Wifi. I'm using the HC-SR501 PIR sensor connected VSS-3.3v, GND-GND, OUT-D0 but am clueless on how to configure it. I was able using the following sketch, from this site, to get the NodeMCU on the wifi-network but am clueless on how to setup the void loop. My current MQTT clients are RPi-3s running sensorReporter but this is greek to me. LOL Does anyone know of a good example I can use to make this work? I sure appreciate it.
// 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 // Enables and select radio type (if attached) //#define MY_RADIO_NRF24 //#define MY_RADIO_RFM69 #define MY_GATEWAY_MQTT_CLIENT #define MY_GATEWAY_ESP8266 // Set this node's subscribe and publish topic prefix #define MY_MQTT_PUBLISH_TOPIC_PREFIX "sensors/laundry/main" #define MY_MQTT_SUBSCRIBE_TOPIC_PREFIX "sensors/landry/main" // Set MQTT client id #define MY_MQTT_CLIENT_ID "sensors_laundry" // Enable these if your MQTT broker requires usenrame/password #define MY_MQTT_USER "*********" #define MY_MQTT_PASSWORD "************" // Set WIFI SSID and password #define MY_ESP8266_SSID "Batcave" #define MY_ESP8266_PASSWORD "***********" // Set the hostname for the WiFi Client. This is the hostname // it will pass to the DHCP server if not static. // #define MY_ESP8266_HOSTNAME "sensors-laundry" // Enable MY_IP_ADDRESS here if you want a static ip address (no DHCP) #define MY_IP_ADDRESS 10,0,0,51 // If using static ip you need to define Gateway and Subnet address as well #define MY_IP_GATEWAY_ADDRESS 10,0,0,1 #define MY_IP_SUBNET_ADDRESS 255,255,255,0 // MQTT broker ip address. #define MY_CONTROLLER_IP_ADDRESS 10, 0, 0, 11 // The MQTT broker port to to open #define MY_PORT 1883 /* // Enable inclusion mode #define MY_INCLUSION_MODE_FEATURE // Enable Inclusion mode button on gateway #define MY_INCLUSION_BUTTON_FEATURE // 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 // Flash leds on rx/tx/err #define MY_DEFAULT_ERR_LED_PIN 16 // Error led pin #define MY_DEFAULT_RX_LED_PIN 16 // Receive led pin #define MY_DEFAULT_TX_LED_PIN 16 // the PCB, on board LED */ #include <ESP8266WiFi.h> #include <MySensors.h> void setup() { } void presentation() { // Present locally attached sensors here } void loop() { }``` -
Ok, I've read and read and cannot find a suitable example that will dumb it down enough for me to comprehend so here I am. :)
I currently have OpenHab and my MQTT Broker running on a RPi-3. I also have multiple RPi-3s in closets around the house / land connected to SainSmart 16 Channel relays to turn on and off various lights. All this is working great. Now I wanted to add PIR sensors to some rooms so if a kid forgets to turn off their lights the PIR can via MQTT to the same relays. Also I have a tremendous wifi and switched network backend all done via Ubiquitys Unifi Switches and various Ubiquity wifi devices, enough to cover my whole 10 acres.
Because I do a lot with drones I was limited in my ability to utilize most all frequencies, even 433mhz range on any devices. Since I have a great wifi setup it made the most sense for me to use NodeMCUs with Wifi. I'm using the HC-SR501 PIR sensor connected VSS-3.3v, GND-GND, OUT-D0 but am clueless on how to configure it. I was able using the following sketch, from this site, to get the NodeMCU on the wifi-network but am clueless on how to setup the void loop. My current MQTT clients are RPi-3s running sensorReporter but this is greek to me. LOL Does anyone know of a good example I can use to make this work? I sure appreciate it.
// 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 // Enables and select radio type (if attached) //#define MY_RADIO_NRF24 //#define MY_RADIO_RFM69 #define MY_GATEWAY_MQTT_CLIENT #define MY_GATEWAY_ESP8266 // Set this node's subscribe and publish topic prefix #define MY_MQTT_PUBLISH_TOPIC_PREFIX "sensors/laundry/main" #define MY_MQTT_SUBSCRIBE_TOPIC_PREFIX "sensors/landry/main" // Set MQTT client id #define MY_MQTT_CLIENT_ID "sensors_laundry" // Enable these if your MQTT broker requires usenrame/password #define MY_MQTT_USER "*********" #define MY_MQTT_PASSWORD "************" // Set WIFI SSID and password #define MY_ESP8266_SSID "Batcave" #define MY_ESP8266_PASSWORD "***********" // Set the hostname for the WiFi Client. This is the hostname // it will pass to the DHCP server if not static. // #define MY_ESP8266_HOSTNAME "sensors-laundry" // Enable MY_IP_ADDRESS here if you want a static ip address (no DHCP) #define MY_IP_ADDRESS 10,0,0,51 // If using static ip you need to define Gateway and Subnet address as well #define MY_IP_GATEWAY_ADDRESS 10,0,0,1 #define MY_IP_SUBNET_ADDRESS 255,255,255,0 // MQTT broker ip address. #define MY_CONTROLLER_IP_ADDRESS 10, 0, 0, 11 // The MQTT broker port to to open #define MY_PORT 1883 /* // Enable inclusion mode #define MY_INCLUSION_MODE_FEATURE // Enable Inclusion mode button on gateway #define MY_INCLUSION_BUTTON_FEATURE // 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 // Flash leds on rx/tx/err #define MY_DEFAULT_ERR_LED_PIN 16 // Error led pin #define MY_DEFAULT_RX_LED_PIN 16 // Receive led pin #define MY_DEFAULT_TX_LED_PIN 16 // the PCB, on board LED */ #include <ESP8266WiFi.h> #include <MySensors.h> void setup() { } void presentation() { // Present locally attached sensors here } void loop() { }```@dwbro1 welcome to the MySensors community, great to have you here!
The sketch at https://www.mysensors.org/build/motion should have all the code you need. However, the hc-sr501 requires 5V to work properly (it does all sort of strange things if it does not get enough voltage) so you'll need a step-up or a 5V power supply.
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If you search around there should be a mod for the pir sensor to make it run on 3,3v if you are up for the challenge 😀
@gohan I had let that slip my mind. Getting 5v to the PIR sensor is not a big deal that part I can handle.
It's the sketch that scares the hell out of me. LOL.
I looked over the motion sketch linked and still not any clearer. Yes I see the basics of reading the pin but it is setup to publish to a gateway not directly to the broker as a client via my wifi. :(
What I need in the end which I know complicates the code greatly is:
- Sensor does not detect movement for x number of minutes then it sends "OFF" to that lights topic.
- Sensor detects movement and sends "ON" message to lights topic then starts to monitor for non-movement as above in number 1 (eventually, I'd like to add a light sensor and not have it come on when light levels too high).
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@gohan "one of the easiest sketches" doesn't make me feel any better. hahahaha.. I sure appreciate any help. I have burned many brain cells getting this far with the Pi and sensorReporter the thought of plowing into another 6 month learning curve just turns me off right now and wife is starting to bitch at my half finished project. LOL
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@gohan I had let that slip my mind. Getting 5v to the PIR sensor is not a big deal that part I can handle.
It's the sketch that scares the hell out of me. LOL.
I looked over the motion sketch linked and still not any clearer. Yes I see the basics of reading the pin but it is setup to publish to a gateway not directly to the broker as a client via my wifi. :(
What I need in the end which I know complicates the code greatly is:
- Sensor does not detect movement for x number of minutes then it sends "OFF" to that lights topic.
- Sensor detects movement and sends "ON" message to lights topic then starts to monitor for non-movement as above in number 1 (eventually, I'd like to add a light sensor and not have it come on when light levels too high).
I looked over the motion sketch linked and still not any clearer. Yes I see the basics of reading the pin but it is setup to publish to a gateway not directly to the broker as a client via my wifi. :(
Yes it will publish to the gateway. As per your sketch above you have configured the gateway to publish to mqtt. That's it. No more work to be done :)
