💬 Multi-Sensor: Temp/Humidity/PIR/ Leak/Magnet/Light/Accel

  • Hero Member

    @tiwo85 said in 💬 Multi-Sensor: Temp/Humidity/PIR/ Leak/Magnet/Light/Accel:

    Wich board do you use in arduino? I

    Not sure what you're asking.

  • @neverdie I mean this:
    When I use Generic nRF51 or something else, the onboard LED turns on and doesn't turns off. When I use Waveshare BLE400 the sketch works as usual

  • Hero Member

    I use this:
    You download it from @d00616 on github.

  • @neverdie do you have a working example sketch. I try the example sketch from the 10years pir sensor an d modify a little bit, but it doesn't work. The sketch awake every 5 minutes and send the state from the pir and that's it.

  • Hero Member

  • @neverdie thank you. I made this sketch work. But I need to get work interrupts. I use your code for the am612, but it doesn't work. Then I use the example from Redbear labs "Example interrupted" to turn on the led when p0.02 is high. I use Mysensors library and set My Core only. Then it runs. But when I try to integrate Mysensors routines "presentation" etc. And disable "my core only" , then the interrupt doesn't work.

    // SUMMARY: This demo sketch runs on the AM612 PIR v607 PCBto transmit battery voltage (heartbeat) and motion detections to a MySensors gateway using MySensors protocols.
    // Note: because this is a passive node, node ID must be set manually to a unique sensor node ID:
    #define MY_NODE_ID 143  // Passive mode requires static node ID
    //#define MY_CORE_ONLY
    #define MY_PASSIVE_NODE
    #define MY_RADIO_NRF5_ESB
     * 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) 2013-2017 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.
     * Version 1.0 - tekka
     * Passive node example: This is a passive & independent reporting node
    // This demo sketch also draws from the MySensor's example MotionSensor sketch.
    #define IS_NRF51  //true iff the target is an nRF51.  If an nRF52, then comment this line out!
    #define SHORT_WAIT 50
    // Enable debug prints
    //#define MY_DEBUG
    #define PIN_LED1                (4) // 4 is sensor LED , 1 is onboard LED
    #define LED_BUILTIN          PIN_LED1
    #define PIN_SENSOR1                (10) // 2 is waterleak, 10 is PIR , 3 is Pin5/INT
    #define SENSOR1         PIN_SENSOR1
    #include <MySensors.h>
    //#define CHILD_ID_TEMP 1  //definitions contributed by smilvert (see above credit)
    #define CHILD_ID 2   // Id of the motion sensor child
    #define ID_S_MULTIMETER        28
    // Initialize general message
    //MyMessage msgTemp(CHILD_ID_TEMP, V_TEMP);
    MyMessage msg(CHILD_ID, V_TRIPPED);
    float batteryVoltage=0;  
    /*#include "nrf_temp.h"
    float read_temp_value(){
      float temp=0;
      // Starten Sie die Temperaturmessung. 
      // Warten Sie, bis die Temperaturmessung abgeschlossen ist.
      while (NRF_TEMP->EVENTS_DATARDY == 0){
        // Do nothing.}
      // Lesen Sie den Temperaturwert vom Sensor ab
      // Die Genauigkeit beträgt 0,25 Grad Celsius <=> 1 Einheit = 0,25 Grad Celsius
      // Teile durch 4, um einen C-Wert zu erhalten
      temp = ((float)nrf_temp_read() / 4.);
      // Hoàn thành quá trình đo. 
      NRF_TEMP->TASKS_STOP = 1; 
      return temp;
    void blinkityBlink(uint8_t repetitions) {
      for (int x=0;x<repetitions;x++) {
        digitalWrite(LED_BUILTIN ,HIGH);
        digitalWrite(LED_BUILTIN ,LOW);
        digitalWrite(LED_BUILTIN ,HIGH);
        digitalWrite(LED_BUILTIN ,LOW);    
        if (x<(repetitions-1)) {  //skip waiting at the end of the final repetition
    void handle_irq3(void) {
      if(HIGH == digitalRead(SENSOR1)){
          digitalWrite(LED_BUILTIN , HIGH);
          send(msg.set("1"));  // motion detected
          digitalWrite(LED_BUILTIN , LOW);
           send(msg.set("0"));  // send all-clear to prepare for future detections
    void presentation()
      // Send the sketch version information to the gateway and Controller
      sendSketchInfo("NRF Motion Sensor", "1.0");
       // wait(SHORT_WAIT);
       // present(CHILD_ID_TEMP, S_TEMP,"Onboard Temperature");
      // Register all sensors to gw (they will be created as child devices)
      present(CHILD_ID, S_MOTION,"Motion Sensor");
      present(ID_S_MULTIMETER,S_MULTIMETER,"Electric Station");
    void setup() {
        // put your setup code here, to run once:
      pinMode(LED_BUILTIN , OUTPUT);
        digitalWrite(LED_BUILTIN , LOW);
      blinkityBlink(5);  //signify power-up and start of operations
      // set interrupts, pin default is HIGH
      attachInterrupt(SENSOR1, handle_irq3, CHANGE);
    void loop() {
      // put your main code here, to run repeatedly:
      batteryVoltage=((float)hwCPUVoltage())/1000.0;  //take voltage measurement after transmission to hopefully measure lowest voltage that occurs. 
      send(msg_S_MULTIMETER_V_VOLTAGE.set(batteryVoltage,3));  //send battery voltage with 3 decimal places
      sleep(900000); //sleep 15 min

  • Hero Member

    @tiwo85 I suggest you start a different thread on your interrupt problems, since that's really a separate issue and not specific to this hardware.

  • 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.

    1. 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?

    2. Can I mount the following sensors at the same time without space conflicts:

    • Motion PIR (AM612breakout)
    • Temp + Humidity
    • Light
    1. Does this board have some free digital pins for door contact and or relais? (if yes, how many?)

    2. (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.

  • Hardware Contributor

    Hello @ehome

    1. it is based on an arduino pro mini (NModule board, don't forget that this is just a shield for NModule) , so you program the arduino pro-mini, usually using an FTDI adapter. You should find plenty of explanations online.
      For programming bootloader/fuses, you can use and arduino nano with the ArduinoISP sketch: MOSI=>MOSI, MISO=>MISO, SCK=>SCK and SS (pin 10) of nano to reset pin of the pro mini. Here also you will find plenty of examples/videos etc online.
      Start with reading the page about NModule:

    2. In theory yes if light sensor is on the AM612 breakout. I will test this configuration next week and confirm to you that it is working before you order the board. If you don't hear any news about that before the end of next week ring me a bell here as it probably means I forgot 🙂

    3. You will use one of the external interrupt pins (pin 3) for the PIR sensor, so you will have one left (pin 2). If you don't use the leds there are 3 other input pins available on the NModule connector (A1,A2,A3, you can use them as digital inputs too), on battery powered sensors it needs pin change interrupts, but as you are using a power supply it won't be a problem.

    4. No you can't connect a RFM module, NModule is only for SMD NRF24 modules

    5. You should connect power to RAW and GND pins on the NModule connector. The best is to use AMS1117 regulator to get the 3.3V, it's probably overkill for your usage but it's very stable and will filter the noise of your power supply much better than the XC6206 (which more suitable for a li-ion powered node). In addition you will be able to use a power supply up to 12V

  • @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

  • Hardware Contributor

    @ehome said in 💬 Multi-Sensor: Temp/Humidity/PIR/ Leak/Magnet/Light/Accel:

    @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

    These are shield made to work with the NModule. For the same sensors I think @NeverDie has what you need in NRF5 versions, so ask him on the right thread 🙂

  • Hi all, i try NRF51822-04 module with this sketch and Si7021 as GY-21 sensor, communication over radio works great, but i still got Humidity 118% and Temperature 128°C

    can anyone help me?

    Si7021 is connected to P0.10 - SCL and P0.4 - SDA

    1. I've downloaded the source files and tried to compile them.
      I got fatal error: sketch/MyBoardNRF5.h: No such file or directory

    2. Then I renamed MyNRF5Board.h to MyBoardNRF5.h
      I got #error No forward link or gateway feature activated. This means nowhere to send messages! Pretty pointless.

    3. Then I added #define MY_GATEWAY_SERIAL into the code
      I got many errors i.e. 'PIN_AIN0' was not declared in this scope

    How to compile the downloaded source files?

  • Hardware Contributor

    What is the power consumption you get with this board and i2c sensors? I built several boards and measured the consumption using a INA219 sensor (lowest resolution is 0.1mA). Without any I2C sensor initialized, it shows a power consumption well below 0.1mA (i.e. it always shows 0.0), but as soon as I use an I2C sensor, the consumption during sleep increases to 0.3mA, which drains the battery faster than desired for a battery node...

    I tried it with several different implementations / sensors, and always got the same result:

    • MyBoardNRF5 with BME280 (Adafruit library), sketch adapted from the one supplied with this board
    • MyBoardNRF5 with BME280 using NodeManger
    • MyBoardNRF5 with VL53L0x using NodeManager
    • Custom board in Arduino IDE derived from Sandeep Mistry's generic 51822 board, with either of the above sketches

    Is there anything special I need to do to get power consumption with i2c sensors down to the desired single-digit-µA-range during sleep?

  • @reinhold I'm not sure if this helps, but I had 450uA drain when sleeping and shut down I2C everytime I'm done reading:

    void i2c_off() // Shut i2c down, power consumption rises up to 450uA instead of 11 ua  - https://github.com/sandeepmistry/arduino-nRF5/issues/291#issuecomment-407492282
    *(volatile uint32_t *)0x40004FFC = 0;
    *(volatile uint32_t *)0x40004FFC;
    *(volatile uint32_t *)0x40004FFC = 1;

  • Hardware Contributor

    @Omemanti, thanks for the pointer. Unfortunately, this seems to be a hardware problem of the NRF52* boards, not of the NRF51822-04 that is used in NeverDie's board.

    Is there any way to find out which peripherals are enabled while the nrf51 is sleeping? I tried googling and also looked at the openocd documentation, but couldn't see any reference to reading out the which peripherals are turned off and which are running while the nrf is in deep sleep. (I'm using a cheap Chinese ST-link V2 dongle to program the nrf via SWD).