@silex I know these IR-Array sensors. But at the moment they are very expensive.
And I think also the detection range and angle is not as good as from an PIR.
I need a minimum range of 5-7m and tests I have seen on youtube just covered 2-3m.
But I also see the big advantage to have human detection without active motion. With these devices it is possible to create real presence detection sensors.
@silex many thanks for your reply and share of experience.
Batteries are not a problem for me. All my sensor nodes will be powered directly via power supply.
I had to make the decision to buy the Fibaro or Aeotec one. The Aeotec one was the winner because the Fibaro one is missing the humidity sensor. This is an interesting value for me.
But it's also interesting to hear that you said that the Fibaro has more settings to tweak the PIR capabilities.
Maybe I will have to test both of them and see with which multi-sensor I can get the better human detection results.
It's really sad that I have to give up building my own sensor nodes because of the very bad PIR results 
@rejoe2 yesterday I received my order of the RCWL' modules.
The detection range from theses modules are much better than AM312/HC-SR501.
But sometimes these modules also detect motion through my thick (pumice stone) walls.
And of course this is not really practical and absolutely unwanted.
I never thought that it will such a big challenge to get a reliable human motion detection to work...
I think I will know try an "aeotec multisensor 6 - Zwave device".
Maybe these devices will work more reliable? Do someone have experience with these devices?
Hi all,
EDIT 2018/06/10: Solution:
It seems that some old wifi settings on my ESP8266 module has conflicted with the MySensors gateway sketch. I was able to set an static ip address after an complete erase of sketch and flash through Arduino IDE. - Thanks!
==================================================================================
If I try to configure my very basic (nearly plain) new ESP8266 MySensors 2.2.0 gateway with an static ip address then I get in serial monitor the following repeating output:
(Log parser do not have further information for this specific error?)
48 MCO:BGN:INIT GW,CP=RRNGE---,VER=2.2.0
91 TSF:LRT:OK
106 TSM:INIT
119 TSF:WUR:MS=0
139 TSM:INIT:TSP OK
160 TSM:INIT:GW MODE
scandone
state: 0 -> 2 (b0)
state: 2 -> 3 (0)
state: 3 -> 5 (10)
add 0
aid 1
cnt
connected with SSID, channel 5
dhcp client start...
331 TSM:READY:ID=0,PAR=0,DIS=0
364 MCO:REG:NOT NEEDED
scandone
889 GWT:TPC:CONNECTING...
1416 GWT:TPC:CONNECTING...
1944 GWT:TPC:CONNECTING...
2472 GWT:TPC:CONNECTING...
3000 GWT:TPC:CONNECTING...
3528 GWT:TPC:CONNECTING...
4056 GWT:TPC:CONNECTING...
4584 GWT:TPC:CONNECTING...
5112 GWT:TPC:CONNECTING...
5640 GWT:TPC:CONNECTING...
6168 GWT:TPC:CONNECTING...
6696 GWT:TPC:CONNECTING...
7224 GWT:TPC:CONNECTING...
7752 GWT:TPC:CONNECTING...
8280 GWT:TPC:CONNECTING...
If I switch to dhcp then everything is working like expected.
And of course the ip is not already assigned by an different device 
What I am doing wrong?
␀�/��␝���48 MCO:BGN:INIT GW,CP=RRNGE---,VER=2.2.0
91 TSF:LRT:OK
105 TSM:INIT
119 TSF:WUR:MS=0
139 TSM:INIT:TSP OK
160 TSM:INIT:GW MODE
scandone
state: 0 -> 2 (b0)
state: 2 -> 3 (0)
state: 3 -> 5 (10)
add 0
aid 1
cnt
connected with SSID channel 5
dhcp client start...
331 TSM:READY:ID=0,PAR=0,DIS=0
363 MCO:REG:NOT NEEDED
scandone
889 GWT:TPC:CONNECTING...
1416 GWT:TPC:CONNECTING...
1944 GWT:TPC:CONNECTING...
2472 GWT:TPC:CONNECTING...
3000 GWT:TPC:CONNECTING...
ip:10.0.8.160,mask:255.255.255.0,gw:10.0.8.253
3528 GWT:TPC:CONNECTING...
3556 GWT:TPC:IP=10.0.8.160
3584 MCO:BGN:STP
-- STA (client) informations --
Hostname: mqtt-sensor-gateway1
Connected to: SSID (xx:xx:xx:xx:xx:xx), -45dBm
IP address: 10.0.8.160
Gateway address: 10.0.8.253
Subnet mask: 255.255.255.0
MAC STA address: xx:xx:xx:xx:xx:xx
-- AP (server) informations --
Soft IP address: 0.0.0.0
MAC AP address: xx:xx:xx:xx:xx:xx
----
3826 MCO:BGN:INIT OK,TSP=1
3986 GWT:TPC:IP=10.0.8.160
4014 GWT:RMQ:MQTT RECONNECT
4058 GWT:RMQ:MQTT CONNECTED
4087 GWT:TPS:TOPIC=ehome/gateway1-out/0/255/0/0/18,MSG SENT
pm open,type:2 0
Sketch:
/**
* 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.
*
*******************************
*
* REVISION HISTORY
* Version 1.0 - Henrik Ekblad
*
* DESCRIPTION
* The ESP8266 MQTT gateway sends radio network (or locally attached sensors) data to your MQTT broker.
* The node also listens to MY_MQTT_TOPIC_PREFIX and sends out those messages to the radio network
*
* LED purposes:
* - To use the feature, uncomment any of the MY_DEFAULT_xx_LED_PINs in your sketch
* - 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
*
* See http://www.mysensors.org/build/esp8266_gateway for wiring instructions.
* nRF24L01+ ESP8266
* VCC VCC
* CE GPIO4
* CSN/CS GPIO15
* SCK GPIO14
* MISO GPIO12
* MOSI GPIO13
*
* Not all ESP8266 modules have all pins available on their external interface.
* This code has been tested on an ESP-12 module.
* The ESP8266 requires a certain pin configuration to download code, and another one to run code:
* - Connect REST (reset) via 10K pullup resistor to VCC, and via switch to GND ('reset switch')
* - Connect GPIO15 via 10K pulldown resistor to GND
* - Connect CH_PD via 10K resistor to VCC
* - Connect GPIO2 via 10K resistor to VCC
* - Connect GPIO0 via 10K resistor to VCC, and via switch to GND ('bootload switch')
*
* Inclusion mode button:
* - Connect GPIO5 via switch to GND ('inclusion switch')
*
* Hardware SHA204 signing is currently not supported!
*
* Make sure to fill in your ssid and WiFi password below for ssid & pass.
*/
// 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_RADIO_RFM95
#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_RF69_IRQ_PIN D1
#define MY_RF69_IRQ_NUM MY_RF69_IRQ_PIN
#define MY_RFM69_CS_PIN D8 // NSS. Use MY_RF69_SPI_CS for older versions (before 2.2.0)
#define MY_RFM69_NETWORKID 200 // Default is 100 in lib. Uncomment it and set your preferred network id if needed
#define MY_GATEWAY_MQTT_CLIENT
#define MY_GATEWAY_ESP8266
// Set this node's subscribe and publish topic prefix
#define MY_MQTT_PUBLISH_TOPIC_PREFIX "ehome/gateway1-out"
#define MY_MQTT_SUBSCRIBE_TOPIC_PREFIX "ehome/gateway1-in"
// Set MQTT client id
#define MY_MQTT_CLIENT_ID "ehome-gw-1"
// Set WIFI SSID and password
#define MY_ESP8266_SSID "MySSID"
#define MY_ESP8266_PASSWORD "MyPassword"
// 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 "mqtt-sensor-gateway1"
// Enable MY_IP_ADDRESS here if you want a static ip address (no DHCP)
#define MY_IP_ADDRESS 10, 0, 8, 200
// If using static ip you can define Gateway and Subnet address as well
#define MY_IP_GATEWAY_ADDRESS 10, 0, 8, 253
#define MY_IP_SUBNET_ADDRESS 255, 255, 255, 0
// MQTT broker ip address.
#define MY_CONTROLLER_IP_ADDRESS 10, 0, 12, 200
// Enable these if your MQTT broker requires username/password
#define MY_MQTT_USER "MyUsername"
#define MY_MQTT_PASSWORD "MyPassword"
// 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 <ArduinoOTA.h>
#include <MySensors.h>
void setup()
{
// Setup locally attached sensors
#if defined MY_DEBUG
if (WiFi.status() != WL_CONNECTED)
{
Serial.println("Not connected to WiFi");
}
else
{
Serial.println("");
Serial.println("-- STA (client) informations --");
Serial.print("Hostname: ");
Serial.println(WiFi.hostname());
Serial.print("Connected to: ");
Serial.print(WiFi.SSID());
Serial.print(" (");
Serial.print(WiFi.BSSIDstr());
Serial.print("), ");
Serial.print(WiFi.RSSI());
Serial.println("dBm");
Serial.print("IP address: ");
Serial.println(WiFi.localIP());
Serial.print("Gateway address: ");
Serial.println(WiFi.gatewayIP());
Serial.print("Subnet mask: ");
Serial.println(WiFi.subnetMask());
Serial.print("MAC STA address: ");
Serial.println(WiFi.macAddress());
Serial.println("-- AP (server) informations --");
Serial.print("Soft IP address: ");
Serial.println(WiFi.softAPIP());
Serial.print("MAC AP address: ");
Serial.println(WiFi.softAPmacAddress());
Serial.println("----");
Serial.println("");
}
#endif
ArduinoOTA.onStart([]() {
Serial.println("ArduinoOTA start");
});
ArduinoOTA.onEnd([]() {
Serial.println("\nArduinoOTA end");
});
ArduinoOTA.onProgress([](unsigned int progress, unsigned int total) {
Serial.printf("OTA Progress: %u%%\r", (progress / (total / 100)));
});
ArduinoOTA.onError([](ota_error_t error) {
Serial.printf("Error[%u]: ", error);
if (error == OTA_AUTH_ERROR)
{
Serial.println("Auth Failed");
}
else if (error == OTA_BEGIN_ERROR)
{
Serial.println("Begin Failed");
}
else if (error == OTA_CONNECT_ERROR)
{
Serial.println("Connect Failed");
}
else if (error == OTA_RECEIVE_ERROR)
{
Serial.println("Receive Failed");
}
else if (error == OTA_END_ERROR)
{
Serial.println("End Failed");
}
});
ArduinoOTA.begin();
}
void presentation()
{
// Present locally attached sensors here
}
void loop()
{
// Send locally attech sensors data here
ArduinoOTA.handle();
}
@Nca78 many thanks for your answer. Maybe may question was a little bit too vague. I didn't mean the NMODULE board. I was speaking about the NRF51xxx board from @NeverDie
Hi,
I like to buy this board and your AM612 breakout pcb through hardware.io.
But first I have few questions unfortunately I couldn't find the answers here in this thread/forum.
I assume this board has to be programmed via the 10pin box header. How can I connect it to my computer? I think there is some adapter or similar required? Any selfmade options available? In this thread I saw that it should be possible to program this device via the Arduino IDE?
Can I mount the following sensors at the same time without space conflicts:
Does this board have some free digital pins for door contact and or relais? (if yes, how many?)
(Optional) I think there are no MISO/MOSI/... pins for connecting a RFM69 module?
I don't like to use the battery option. I will power the board via power supply. Can I connect a 5V power supply to the battery pins or what is the best option?
Thanks in advance.
@rozpruwacz cool, thanks. Currently I am using the following AM312 module eBay
@rozpruwacz I also already thought about making a node with multiple PIR sensors in it. May you know if it is possible to connect the OUT pin of multiple PIR sensors to the same input pin on my micro controller?
@rejoe2 Have you already made some experience or used these microwave sensors as motion sensor?
They are not so expensive so I already ordered them. Waiting for delivery now.
Hi all,
I have huge problems with PIR human detection in my smarthome.
The sensor is mounted on the ceiling in my corridor. If I walk up stairs then the detection is very very bad. (similar to an back and forth movement)
Some other articles also confirmed that these kind of sensors do have such problems. Sidewards movements (e.g. left to right) seems to work much better.
Unfortunately Repositioning the sensor in this case is nearly impossible.
I already tested different kind of sensors like:
Do you have any ideas / experience with better human detection sensors?
Or do you think that it is cheaper to use an "Aeotec Multi-Sensor 6 (Zwave)".
This sensor costs about 50-55 Euro. For example the price for an IR Array sensor starts at around 20-30 Euro.
@gohan
If I am uploading the sketch below then I get the warning from the ArduinoIDE that only few ressources are left / its complaining about stability problems that my occur. (also with debugging disabled)
And if I run this on a ArduinoUNO or Micro then after a few hours the board doesn't respond anymore. I have to power off and on (or reset) to get it working again.
Code:
/**
* 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.
*
*******************************
*
* REVISION HISTORY
* Version 1.0 - Henrik Ekblad
*
* DESCRIPTION
* The W5100 MQTT gateway sends radio network (or locally attached sensors) data to your MQTT broker.
* The node also listens to MY_MQTT_TOPIC_PREFIX and sends out those messages to the radio network
*
* LED purposes:
* - To use the feature, uncomment WITH_LEDS_BLINKING in MyConfig.h
* - RX (green) - blink fast on radio message received. In inclusion mode will blink fast only on presentation received
* - TX (yellow) - blink fast on radio message transmitted. In inclusion mode will blink slowly
* - ERR (red) - fast blink on error during transmission error or receive crc error
*
* See http://www.mysensors.org/build/esp8266_gateway for wiring instructions.
* nRF24L01+ ESP8266
* VCC VCC
* CE GPIO4
* CSN/CS GPIO15
* SCK GPIO14
* MISO GPIO12
* MOSI GPIO13
*
* Not all ESP8266 modules have all pins available on their external interface.
* This code has been tested on an ESP-12 module.
* The ESP8266 requires a certain pin configuration to download code, and another one to run code:
* - Connect REST (reset) via 10K pullup resistor to VCC, and via switch to GND ('reset switch')
* - Connect GPIO15 via 10K pulldown resistor to GND
* - Connect CH_PD via 10K resistor to VCC
* - Connect GPIO2 via 10K resistor to VCC
* - Connect GPIO0 via 10K resistor to VCC, and via switch to GND ('bootload switch')
*
* Inclusion mode button:
* - Connect GPIO5 via switch to GND ('inclusion switch')
*
* Hardware SHA204 signing is currently not supported!
*
* Make sure to fill in your ssid and WiFi password below for ssid & pass.
*/
// Enable debug prints to serial monitor
#define MY_DEBUG
// ID of the current node
#define MY_NODE_ID 1
// Enables and select radio type (if attached)
//#define MY_RADIO_NRF24
//#define MY_RADIO_RFM69
//#define MY_RADIO_RFM95
#define MY_GATEWAY_MQTT_CLIENT
// Set this node's subscribe and publish topic prefix
#define MY_MQTT_PUBLISH_TOPIC_PREFIX "ff-kitchen-gw1-out"
#define MY_MQTT_SUBSCRIBE_TOPIC_PREFIX "ff-kitchen-gw1-in"
// Set MQTT client id
#define MY_MQTT_CLIENT_ID "ff-kitchen-1"
// W5100 Ethernet module SPI enable (optional if using a shield/module that manages SPI_EN signal)
//#define MY_W5100_SPI_EN 4
// Enable Soft SPI for NRF radio (note different radio wiring is required)
// The W5100 ethernet module seems to have a hard time co-operate with
// radio on the same spi bus.
#if !defined(MY_W5100_SPI_EN) && !defined(ARDUINO_ARCH_SAMD)
#define MY_SOFTSPI
#define MY_SOFT_SPI_SCK_PIN 14
#define MY_SOFT_SPI_MISO_PIN 16
#define MY_SOFT_SPI_MOSI_PIN 15
#endif
// When W5100 is connected we have to move CE/CSN pins for NRF radio
#ifndef MY_RF24_CE_PIN
#define MY_RF24_CE_PIN 5
#endif
#ifndef MY_RF24_CS_PIN
#define MY_RF24_CS_PIN 6
#endif
// Enable these if your MQTT broker requires username/password
#define MY_MQTT_USER "Username"
#define MY_MQTT_PASSWORD "Password"
#define MY_SENSOR_PASSWORD "Password"
// Enable MY_IP_ADDRESS here if you want a static ip address (no DHCP)
#define MY_IP_ADDRESS xx,x,xx,xxx
// If using static ip you can define Gateway and Subnet address as well
#define MY_IP_GATEWAY_ADDRESS xx,x,xx,xxx
#define MY_IP_SUBNET_ADDRESS xxx,xxx,xxx,x
// MQTT broker ip address or url. Define one or the other.
//#define MY_CONTROLLER_URL_ADDRESS "m20.cloudmqtt.com"
#define MY_CONTROLLER_IP_ADDRESS xx, x, xx, xxx
// 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
// Uncomment to override default HW configurations
//#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 <Ethernet.h>
#include <MySensors.h>
#include <DHT.h>
#include <BH1750.h>
#include <Wire.h>
// Pin configuration
// Interrupt pins: 2,3 (Arduino UNO)
#define PIR_DATA_PIN 2 // PIR Motion sensor
#define DHT_DATA_PIN 3 // Temperature and humidity sensor
#define WINDOW_TOP_REEDCONTACT_DATA_PIN 5 // Reed contact sensor
#define WINDOW_BOTTOM_REEDCONTACT_DATA_PIN 6 // Reed contact sensor
const unsigned int RELAY_DATA_PINS[] = {4, 7, 8, 9}; // Relay module
char* RELAY_ANALOGDATA_PINS[] = { "A0", "A1", "A2", "A3"}; // Relay module
// Settings
#define RELEASE_VERSION "1.0"
bool enableSaveState = false; // Save states in local eeprom
bool metric = true;
const unsigned long WARMUP_TIME = 30000; // Timer for initializing sensors like DHT, PIR, etc...
const unsigned long SENSOR_UPDATE_TIME = 3000; // Timer for periodic sensor readings
const unsigned long FAST_UPDATE_TIME = 250; // Timer for special sensors like PIR
unsigned long lastSensorUpdateTime = 0;
unsigned long lastFastUpdateTime = 0;
// Sensor offsets
// SENSOR_TEMP_OFFSET: Set this offset if the sensor has a permanent small offset to the real temperatures
// SENSOR_MINCHANGE_OFFSET*: Set this offset for wheter sending mqtt updates or not
#define SENSOR_TEMP_OFFSET 0
#define SENSOR_MINCHANGE_OFFSET 0.2
#define SENSOR_MINCHANGE_OFFSET_LARGE 2
// Force sending an update of the temperature after n sensor reads, so a controller showing the
// timestamp of the last update doesn't show something like 3 hours in the unlikely case, that
// the value didn't change since;
// i.e. the sensor would force sending an update every UPDATE_INTERVAL*FORCE_UPDATE_N_READS [ms]
static const uint8_t FORCE_UPDATE_N_READS = 20;
// Set sensor child ids
#define CHILD_ID_MOTION 30
#define CHILD_ID_TEMP 40
#define CHILD_ID_HUM 50
#define CHILD_ID_LIGHT 60
#define CHILD_ID_WINDOW_TOP 5
#define CHILD_ID_WINDOW_BOTTOM 6
// States
#define RELAY_ON 0 // GPIO value to write to turn on attached relay
#define RELAY_OFF 1 // GPIO value to write to turn off attached relay
// MotionSensor
unsigned long lastPirUpdate = 0;
long unsigned int lowIn; // Save the time when the PIR sensor outputs a low impulse.
long unsigned int motionPause = 60000; // The amount of milliseconds the sensor has to be low, before we assume all motion has stopped.
bool lockLow = true;
bool takelowTime;
MyMessage msgMotion(CHILD_ID_MOTION, V_TRIPPED);
void initPirSensor()
{
pinMode(PIR_DATA_PIN, INPUT); // Init PIR motion sensor
}
void updateMotionSensor(bool forceUpdate = false)
{
bool tripped = digitalRead(PIR_DATA_PIN) == HIGH;
#ifdef MY_DEBUG
Serial.print("M: ");
Serial.println(tripped);
#endif
if (tripped == HIGH)
{
if (lockLow)
{
// Make sure to wait for a transition to LOW before any further progress is made.
lockLow = false;
#ifdef MY_DEBUG
Serial.print("Motion detected at ");
Serial.print(millis() / 1000);
Serial.println(" sec.");
#endif
send(msgMotion.set(tripped ? "1" : "0"));
}
takelowTime = true;
}
else if (tripped == LOW)
{
if (takelowTime)
{
lowIn = millis(); // Save the time of the transition from HIGH to LOW.
takelowTime = false; // Make sure this is only done at the start of a new LOW ph.
}
// If the sensor is low for more than the given pause,
// then we assume that nor more motion (human presence) is going to happen.
if (!lockLow && millis() - lowIn > motionPause)
{
// Make sure this code block is only executed after a new motion sequence has been detected.
lockLow = true;
#ifdef MY_DEBUG
Serial.print("Motion ended at ");
Serial.print((millis() - motionPause) / 1000);
Serial.println(" sec.");
#endif
send(msgMotion.set(tripped ? "1" : "0"));
return;
}
}
unsigned long currentMillis = millis();
if (currentMillis - lastPirUpdate > WARMUP_TIME && lockLow)
{
lastPirUpdate = currentMillis;
send(msgMotion.set(tripped ? "1" : "0"));
}
}
// TempSensor
float lastTemp;
float lastHum;
float lastHic;
uint8_t nNoUpdatesTemp;
uint8_t nNoUpdatesHum;
uint8_t nNoUpdatesHic;
MyMessage msgHum(CHILD_ID_HUM, V_HUM);
MyMessage msgTemp(CHILD_ID_TEMP, V_TEMP);
MyMessage msgHic(CHILD_ID_TEMP, V_VAR1);
DHT dht;
void initTempSensor()
{
dht.setup(DHT_DATA_PIN); // set data pin of DHT sensor
if (SENSOR_UPDATE_TIME <= dht.getMinimumSamplingPeriod())
{
#ifdef MY_DEBUG
Serial.println("Warning: UPDATE_INTERVAL is smaller than supported by the sensor!");
#endif
}
// Sleep for the time of the minimum sampling period to give the sensor time to power up
// (otherwise, timeout errors might occure for the first reading)
wait(dht.getMinimumSamplingPeriod());
}
void updateTempSensor()
{
// Force reading sensor, so it works also after sleep()
// Source: https://gist.github.com/jamesabruce/382fe945d39cf41b29f9
dht.readSensor(true);
// Get temperature from DHT library
float temperature = dht.getTemperature();
if (isnan(temperature))
{
#ifdef MY_DEBUG
Serial.println("Failed reading temperature from DHT!");
#endif
}
else if ((temperature != lastTemp && abs(temperature - lastTemp) > SENSOR_MINCHANGE_OFFSET) || nNoUpdatesTemp == FORCE_UPDATE_N_READS)
{
// Only send temperature if it changed since the last measurement or if we didn't send an update for n times
lastTemp = temperature;
if (!metric)
{
temperature = dht.toFahrenheit(temperature);
}
// Reset no updates counter
nNoUpdatesTemp = 0;
temperature += SENSOR_TEMP_OFFSET;
send(msgTemp.set(temperature, 1));
#ifdef MY_DEBUG
Serial.print("T: ");
Serial.println(temperature);
#endif
}
else
{
// Increase no update counter if the temperature stayed the same
nNoUpdatesTemp++;
}
// Get humidity from DHT library
float humidity = dht.getHumidity();
if (isnan(humidity))
{
#ifdef MY_DEBUG
Serial.println("Failed reading humidity from DHT");
#endif
}
else if ((humidity != lastHum && abs(humidity - lastHum) > SENSOR_MINCHANGE_OFFSET) || nNoUpdatesHum == FORCE_UPDATE_N_READS)
{
lastHum = humidity;
nNoUpdatesHum = 0;
send(msgHum.set(humidity, 1));
#ifdef MY_DEBUG
Serial.print("H: ");
Serial.println(humidity);
#endif
}
else
{
nNoUpdatesHum++;
}
// Compute heat index in Celsius (isFahreheit = false)
if (isnan(temperature) && isnan(humidity))
{
float hic = dht.computeHeatIndex(temperature, humidity, false);
#ifdef MY_DEBUG
Serial.print("Hic: ");
Serial.println(humidity);
#endif
if ((hic != lastHic && abs(hic - lastHic) > SENSOR_MINCHANGE_OFFSET) || nNoUpdatesHic == FORCE_UPDATE_N_READS)
{
nNoUpdatesHic = 0;
send(msgHic.set(hic, 1));
lastHic = hic;
}
else
{
nNoUpdatesHic++;
}
}
}
// LightSensor
// V_LIGHT_LEVEL should only be used for uncalibrated light level 0-100%.
// If your controller supports the new V_LEVEL variable, use this instead for
// transmitting LUX light level.
MyMessage msgLux(CHILD_ID_LIGHT, V_LIGHT_LEVEL);
// MyMessage msg(CHILD_ID_LIGHT, V_LEVEL);
uint16_t lastlux;
uint8_t nNoUpdatesLux;
BH1750 lightSensor;
void initLightSensor()
{
// Initialize the I2C bus (BH1750 library doesn't do this automatically)
// On esp8266 devices you can select SCL and SDA pins using Wire.begin(D4, D3);
Wire.begin();
lightSensor.begin();
}
void updateLightSensor()
{
uint16_t lux = lightSensor.readLightLevel();
#ifdef MY_DEBUG
Serial.print("L: ");
Serial.println(lux);
#endif
if ((lux != lastlux && abs(lux - lastlux) > SENSOR_MINCHANGE_OFFSET_LARGE) || nNoUpdatesLux == FORCE_UPDATE_N_READS)
{
nNoUpdatesLux = 0;
send(msgLux.set(lux));
lastlux = lux;
}
else
{
nNoUpdatesLux++;
}
}
// ReedContacts
int lastBounceWindowTop = -1;
int lastBounceWindowBottom = -1;
unsigned long lastBounceUpdate = 0;
// Change to V_LIGHT if you use S_LIGHT in presentation below
MyMessage msgWindowTop(CHILD_ID_WINDOW_TOP, V_TRIPPED);
MyMessage msgWindowBottom(CHILD_ID_WINDOW_BOTTOM, V_TRIPPED);
void initReedContact(int pin)
{
pinMode(pin, INPUT);
digitalWrite(pin, HIGH); // Activate internal pull-up
}
void updateReedSensor(int pin, MyMessage &message, int &lastState, bool reset)
{
int state = digitalRead(pin);
#ifdef MY_DEBUG
Serial.print("R: ");
Serial.println(state);
#endif
if (state != lastState)
{
send(message.set(state == HIGH ? 1 : 0));
lastState = state;
return;
}
unsigned long currentMillis = millis();
if (currentMillis - lastBounceUpdate > WARMUP_TIME)
{
if (reset)
{
lastBounceUpdate = currentMillis;
}
send(message.set(state == HIGH ? 1 : 0));
}
}
// Relays Module
void initRelayModules()
{
for (size_t sensor = 0; sensor < (sizeof(RELAY_DATA_PINS) / sizeof(int)); sensor++)
{
pinMode(RELAY_DATA_PINS[sensor], OUTPUT); // Then set relay pins in output mode
digitalWrite(RELAY_DATA_PINS[sensor], loadState(RELAY_DATA_PINS[sensor]) ? RELAY_ON : RELAY_OFF); // Set relay to last known state (using eeprom storage)
}
for (size_t sensor = 0; sensor < (sizeof(RELAY_ANALOGDATA_PINS) / sizeof(int)); sensor++)
{
pinMode(RELAY_ANALOGDATA_PINS[sensor], OUTPUT);
digitalWrite(RELAY_ANALOGDATA_PINS[sensor], RELAY_OFF);
}
}
void presentRelays()
{
for (size_t sensor = 0; sensor < (sizeof(RELAY_DATA_PINS) / sizeof(int)); sensor++)
{
present(RELAY_DATA_PINS[sensor], S_LIGHT);
}
for (size_t sensor = 0; sensor < (sizeof(RELAY_ANALOGDATA_PINS) / sizeof(int)); sensor++)
{
present(RELAY_ANALOGDATA_PINS[sensor], S_LIGHT);
}
}
void setup()
{
// Setup locally attached sensors
initTempSensor(); // Init temperature and humidity sensor. (DHT22)
initLightSensor(); // Init one wire light sensor. (BH1750)
initPirSensor(); // Init PIR sensor
initRelayModules(); // Init relay modules
initReedContact(WINDOW_TOP_REEDCONTACT_DATA_PIN); // Init read contact
initReedContact(WINDOW_BOTTOM_REEDCONTACT_DATA_PIN); // Init read contact
wait(WARMUP_TIME);
}
void presentation()
{
// Present locally attached sensors here
// Optional: Send the sketch version information to the gateway
sendSketchInfo("Multi room sensor", RELEASE_VERSION);
present(CHILD_ID_HUM, S_HUM);
present(CHILD_ID_TEMP, S_TEMP);
present(CHILD_ID_LIGHT, S_LIGHT_LEVEL);
present(CHILD_ID_MOTION, S_MOTION);
presentRelays();
// You can use S_DOOR, S_MOTION or S_LIGHT here depending on your usage.
// If S_LIGHT is used, remember to update variable type you send in. See "msg" above.
present(CHILD_ID_WINDOW_TOP, S_DOOR);
present(CHILD_ID_WINDOW_BOTTOM, S_DOOR);
metric = getControllerConfig().isMetric;
}
void loop()
{
// Send locally attached sensors data here
unsigned long currentMillis = millis();
if (currentMillis - lastSensorUpdateTime > SENSOR_UPDATE_TIME)
{
lastSensorUpdateTime = currentMillis;
updateTempSensor();
updateLightSensor();
}
else if (currentMillis - lastFastUpdateTime > FAST_UPDATE_TIME)
{
lastFastUpdateTime = currentMillis;
updateMotionSensor();
updateReedSensor(WINDOW_TOP_REEDCONTACT_DATA_PIN, msgWindowTop, lastBounceWindowTop, false);
updateReedSensor(WINDOW_BOTTOM_REEDCONTACT_DATA_PIN, msgWindowBottom, lastBounceWindowBottom, true);
}
}
void receive(const MyMessage &message)
{
#ifdef MY_DEBUG
Serial.print("Incoming message received. Type: ");
Serial.println(message.type);
Serial.print("Destination: ");
Serial.println(message.destination);
#endif
// We only expect one type of message from controller. But we better check anyway.
if (message.type == V_LIGHT)
{
#ifdef MY_DEBUG
Serial.print("Incoming change for sensor: ");
Serial.println(message.sensor);
Serial.print("New status: ");
Serial.println(message.getBool());
#endif
digitalWrite(message.sensor, message.getBool() ? RELAY_ON : RELAY_OFF);
// Store state in eeprom
// if(enableSaveState) {
// saveState(message.sensor, message.getBool());
// }
}
}
After some further tests over several hours I still had some false triggers.
But it is much better than without the capacitors.
The next step I did is that I put a peace of aluminium foil between my PIR PCB and ESP8266 board.
This combination capacitor + aluminium foil is now running since 2 hours without any false triggers.
Its really annoying that such simple requirement (motion detection) makes so huge problems
Is there any other with similar specs and cheap micro controller that you could suggest?
I also thought about using an IR array like GRID-EYE for motion detection. But these electronic parts are quite expensive.
I would be happy over any suggestion for an replacement either the micro controller board or motion sensor.
@gohan Some people in the post (see link above) suggested to use some capacitors for the BISS0001 chip or between the power supply to act as rc filter.
So I've ordered different types of capacitors, resistors and some other electronic parts.
Few minutes ago I found some left overs of some 220nF ceramic capacitors.
It was a little bit tricky to solder because of the very, very small SMD size 0402. But was able to put it between PIN12 and PIN13 of the BISS0001 chip.
The first test run for one hour looks really good. Had no false triggers and also no triggers while WIFI is active for data transmission.
Negative: First impression is that also the sensitivity of the sensor is decreased by this capacitor.
Will make further tests an post the updates here.
@electrik thanks for your reply. I also already found and read this post.
And I already placed an order for the different required parts. They should arrive in the next 1-2 days.
Thanks for your reply.
I did some further tests. And I think it defenitly has something to do with the WIFI from the ESP8266 modules. (intereference problems?)
I wrote a small sketch with much less WIFI activity. But as soon as the module sends the sensor data via WIFI to my home automation central then the PIR starts with false readings.
Keeping the PIR away from the antenna could be a workaround but I really like to have all components in one small wall or ceiling mounted case.
I also did a lot of research but was not really able to find a working solution for this.
I'm wondering if no one else here also had this problem in the past? Maybe because the most people here don't use the ESP8266 modules? But I really need the space and speed from these modules.
I'm also not so happy with the angle from 100° of the AM312 PIR.
There are any other PIR solutions on the market? Or any other sensor (not to expensive) to get a working motion detection. (human motion)
I do still have huge problems with PIR motion detector modules together with ESP8266 boards. (NodeMCU or Wemos D1)
Problem:
Sometimes the PIR do have false triggers or the state of the PIR output pin is always high.
This as been tested with an HC-SR501 and AM312.
Tried different voltages 3V/5V and power supplies.
Everything is working as expexted if I'm using the same PIR with my ArduinoUno board.
Any ideas how I could get this to work?
My target goal is:
I like to have a multi-sensor with the following minimum set of sensors:
Temperatur
Humidity
Light
Motion
Sensor values via MQTT to my home automation central like openhab.
Board with more memory and ram like the ESP8266 boards
@gohan thanks for your reply.
Interesting idea. Moved the ESPBoard 90-100cm away from the PIR but still the same problem.
Power consumption will be not a big deal because I don't want to use it with an battery. I will power all my sensors with an small USB power supply.
The future plan is to integrate all my main sensors into this housing. Temperature, Humidity, Light and Motion. So in future this sensor will not just act like an PIR. And my sketch including the mysensors library is very big so that I had stability problems with ArduinoUNO, Pro mini, etc... because of insufficient memory.
I found out:
If I use a separate power supply for my ESPBoard then everything is working like expected. But to have two power supplies for every sensor is not very handy... Any ideas why it is not possible to power the ikea PIR and the ESPBoard from the same power supply? The specs from my power supply (5V/3A) are definitly good enough for both.
Re: 
Ikea Molgan Hack
Hi all,
I really like the idea of the referenced topic: Building a multi motion sensor with ArduinoPro mini + NRF radio.
But instead of using an ArduinoPro mini and NRF I would like to use an ESP8266 board like the Wemos D1 mini or NodeMCU board together with the build in motion sensor from the ikea molgan device.
But unfortunately I'm not able to get this combination to work.
Problem: The PIR sensor of the ikea molgan device stays forever high (+3v) as soon as I connect my Wemos or NodeMcu board.
Steps that I have done:
Scenario1: (PIR and ESP connected with power supply)
PIR state is always high
Scenario2: (PIR and ESP connected with power supply and PIR signal cable to ESP)
PIR state is always high
Scenario3: (only PIR is connected with power supply, without any ESPBoard)
PIR state toggles like expected: motion = 3V high / no motion = 0V low
Do you have any ideas what could be the problem here?
Thanks for your fast reply.
That sounds easy.
And you think that the communication between sensor nodes and Gateway are still possible via wired RS485?
I tried to find an example on this site for sending Information from Gateway to sensor nodes. (via SendMessage ?)
For example I like to Switch on/off an light that is connected to an relay board at my sensor node.
Communcation Flow:
OpenHab2 --> MQTT --> Gateway --> RS485 --> Sensor Node --> Relay Board
Currently I have an working RS485 Connection between my Arduino Uno's with the use from SoftwareSerial library.
During my testings I realized, that the message that I triy to send "Hello" will be sent to the other arduino char by char. Is that true?
Because I tried to raise up an pin on HIGH with "if(msg == "Hello")..." But it doesn't worked.
Will the sendMsg method from the MySensor library handle this out of the box?
Regards,
Simon
Hi all,
I would like to setup an sensor network with an ethernet gatway and wired connected sensor nodes. (RS485)
Gateway: Arduino Uno R3 with W5100 ethernet shield.
Sensor Nodes: Nodes are connected with gateway via wired rs485 connection (cable).
Connection Flow 1 # Get sensor values:
Arduino Sensor Node (RS485) --> Gateway --> MQTT --> OpenHab2
Connection Flow 2 # Issue commands to sensor node: (e.g. activate relay)
OpenHab2 --> MQTT --> Gateway --> Arduino Sensor Node (RS485)
Is that possible with the MySensors library?
Because the RS485 gateway example I found on this page doesnt seem to use MQTT communication to OpenHab?
Regards,
Simon