Forum - Recent Threads

Updating Enocean OpenHab binding by adding new profils

Former Member — Fri, 29 May 2015 13:13:19 GMT

Hello,

I am using OpenHab 1.7 version, I want to add the following enocean profil to the existing EnOcean binding

*EEP: A5-07-01 (occupancy sensors)

*EEP: D2.01.08 (dimmers with Energy Measurement and Local Control)

Can you help me with impIementing a support for them?

Are there steps that I can follow to update the OpenHab EnOcean binding to be able to support a new profile?

Thanks in advance for your help!

Does anyone have experience with EnOcean STM 300

robertheinze — Fri, 27 Mar 2015 07:19:36 GMT

Hello!

I am planning to use a motion detector based on EnOcean technology. The available solar powered OEM products using the STM 300 are rather expensive (70€ and more), so I was wondering whether anyone has experience in building your own motion detector Based on STM 300 or if anyone has found a cheaper version of the product.

The idea is have it communicating with a EnOcean Pi modul on a RPi.

Thanks for help.

Regards

Robert

EnOcean STM330 firmware woes

ipv1 — Tue, 14 Oct 2014 19:31:34 GMT

So I fiddled around with the stm330 firmware and got some results. Now I'm trying to restore it to its original state by downloading firmware from the enocean website and programming it to the unit. Now the problems is that I am getting temperature telegrams from the stm330 but the temperature is all wrong. When the blow warm air at it, the temperature reading drops instead or rising.

I checked the application note on calibrating the device but there is no info on inverted readings.

Any clue anyone?

How to use raspberry pi and MSP430G2553 launchpad with nRF24L01?

vish — Sat, 04 Oct 2014 06:51:28 GMT

Hi community,

I'm trying to make a wireless communication link between my raspberry pi and MSP430G2553 launchpad using nRF24L01 modules.

I'm using RF24 library for raspberry pi and Enrf24 library for launchpad.

First thing I tried was to configure one of mu launchpad+nRF module as transmitter and other pair as a reciever( as in the sample comes with Enrf24 library ) and it works fine.

Now I want my raspberry pi to be the receiver. But Pi is not at all receiving the message.

These are the source files I'm using :

// For launchpad : MSP430G2553 as transmitter

#include <Enrf24.h>
#include <nRF24L01.h>
#include <string.h>
#include <SPI.h>

// For MSP430G2553
Enrf24 radio(P2_0, P2_1, P2_2);  // P2.0=CE, P2.1=CSN, P2.2=IRQ

const uint8_t txaddr[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0x01 };

const char *str_on = "ON";
const char *str_off = "OFF";

void setup() {

  SPI.begin();
  SPI.setDataMode(SPI_MODE0);
  SPI.setBitOrder(MSBFIRST);

  radio.begin();  // Defaults 1Mbps, channel 0, max TX power

  radio.setTXaddress((void*)txaddr);

  // set push button
  // pinMode( P1_3, INPUT );
  // set leds
  pinMode( P1_0, OUTPUT );
  // do some startup animation
  for( int i = 0; i < 5; i++ ) {
    digitalWrite( P1_0, HIGH );
    delay( 250 );
    digitalWrite( P1_0, LOW );
    delay( 250 );
  }
  digitalWrite(P1_0, LOW);
}

void loop() {

      digitalWrite( P1_0, LOW );
      radio.print(str_on);
      radio.flush();  // Force transmit (don't wait for any more data)
      delay(250);
   
      digitalWrite( P1_0, HIGH );
      radio.print(str_off);
      radio.flush();  //
      delay(250);
}

// For raspberry pi, as receiver
#include <cstdlib>
#include <iostream>
#include <RF24/RF24.h>

using namespace std;

// Radio pipe addresses for the 2 nodes to communicate.
// First pipe is for writing, 2nd, 3rd, 4th, 5th & 6th is for reading...
const uint64_t pipes[6] =
                    {
                        0xDEADBEEF01LL,
                        0xDEADBEEF01LL,
                        0xDEADBEEF01LL,
                        0xDEADBEEF01LL,
                        0xDEADBEEF01LL,
                        0xDEADBEEF01LL
                       
                        // 0x01EFBEADDELL,
                        // 0x01EFBEADDELL,
                        // 0x01EFBEADDELL,
                        // 0x01EFBEADDELL,
                        // 0x01EFBEADDELL,
                        // 0x01EFBEADDELL
                    };

// CE Pin, CSN Pin, SPI Speed

// Setup for GPIO 22 CE and GPIO 25 CSN with SPI Speed @ 1Mhz
//RF24 radio(RPI_V2_GPIO_P1_22, RPI_V2_GPIO_P1_18, BCM2835_SPI_SPEED_1MHZ);

// Setup for GPIO 22 CE and CE0 CSN with SPI Speed @ 4Mhz
//RF24 radio(RPI_V2_GPIO_P1_15, BCM2835_SPI_CS0, BCM2835_SPI_SPEED_4MHZ);

// Setup for GPIO 22 CE and CE1 CSN with SPI Speed @ 8Mhz
RF24 radio(RPI_V2_GPIO_P1_15, RPI_V2_GPIO_P1_26, BCM2835_SPI_SPEED_8MHZ); 


int main(int argc, char** argv)
{
    uint8_t len;

    // Refer to RF24.h or nRF24L01 DS for settings
    radio.begin();
    radio.enableDynamicPayloads();
    radio.setAutoAck(1);
    radio.setRetries(15,15);
    radio.setDataRate(RF24_1MBPS);
//    radio.setPALevel(RF24_PA_MAX);
    radio.setChannel(0);
    radio.setCRCLength(RF24_CRC_16);

    radio.openReadingPipe(0,pipes[0]);
    radio.openReadingPipe(1,pipes[1]);
    radio.openReadingPipe(2,pipes[2]);
    radio.openReadingPipe(3,pipes[3]);
    radio.openReadingPipe(4,pipes[4]);
    radio.openReadingPipe(5,pipes[5]);

    // Start listening
    radio.startListening();

    // Dump the configuration of the rf unit for debugging
    radio.printDetails();
   
    printf("Output below : \n");
    delay(1);
   
    while(1)
    {
        char receivePayload[32];
        uint8_t pipe = 1;
       
        // Start listening
        radio.startListening();
                   
        while ( radio.available(&pipe) )
        {
            len = radio.getDynamicPayloadSize();
            radio.read( receivePayload, len );

            // Display it on screen
            printf("Recv: size=%i payload=%s pipe=%i\n",len,receivePayload,pipe);

            pipe++;
            // reset pipe to 0
            if ( pipe > 6 )
                pipe = 0;
        }
       
        delayMicroseconds(20);
    }
   
    return 0;
}

Can anybody please tell me what I'm doing wrong ??

I also tried to scan the spectrum using raspberry Pi in order to ensure that my connections are correct. I used this code :

// To report channel activity , running on raspberry pi
#include <cstdlib>
#include <iostream>
#include <sstream>
#include <string>
#include <RF24/RF24.h>

using namespace std;

// CE Pin, CSN Pin, SPI Speed

// Setup for GPIO 22 CE and CE1 CSN with SPI Speed @ 1Mhz
//RF24 radio(RPI_V2_GPIO_P1_22, RPI_V2_GPIO_P1_26, BCM2835_SPI_SPEED_1MHZ);

// Setup for GPIO 22 CE and CE0 CSN with SPI Speed @ 4Mhz
//RF24 radio(RPI_V2_GPIO_P1_15, BCM2835_SPI_CS0, BCM2835_SPI_SPEED_4MHZ);

// Setup for GPIO 22 CE and CE0 CSN with SPI Speed @ 8Mhz
RF24 radio(RPI_V2_GPIO_P1_15, RPI_V2_GPIO_P1_26, BCM2835_SPI_SPEED_8MHZ);


// Radio pipe addresses for the 2 nodes to communicate.
//const uint8_t pipes[][6] = {"1Node","2Node"};
// const uint8_t rxAddress[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0x01 };
const uint8_t rxAddress[] = { 0x01, 0xEF, 0xBE, 0xAD, 0xDE };

//const uint64_t pipes[2] = { 0xABCDABCD71LL, 0x544d52687CLL };


int main(int argc, char** argv){
    printf("RF24 Test Program\n");

    // Setup and configure rf radio
    radio.begin();
    // set channels to 0
    radio.setChannel( 79 );
    // optionally, increase the delay between retries & # of retries
    radio.setRetries(15,15);
    // Dump the configuration of the rf unit for debugging
    radio.printDetails();
    // start listening
    printf( "Opening Address : " );
    radio.openReadingPipe(1, rxAddress);
    printf( " [COMPLETED]\n " );
    printf( "Listening...\n" );
    radio.startListening();
    // Dump the configuration of the rf unit for debugging
    radio.printDetails();
    int16_t i, j;
    uint8_t strength, chan=0, dumpbuf[33];

    printf("nRF24L01+ Channel Activity Scan\n");
    printf("-------------------------------\n");

  // Sample channels 0 through 125.
  for (chan=0; chan < 126; chan++) {
    // Force RX off, change channel & force back on.
    radio.startListening();
    delay( 10 );
    radio.stopListening();
    delay( 10 );
    radio.setChannel(chan);
    radio.startListening();
    delay(1);  // Strawman delay to make sure the RF engine is fully spun-up on the new channel
   
    /* Sample the RPD register (Receive Power Detect, >= -64dBm signal detected)
     * 256 times, once every 4 milliseconds, incrementing the 'strength' variable each
     * time it's detected.  This will be used to produce a relative estimate of how
     * strong the ambient noise/crosstalk is on this channel.
     */
    strength = 0;
    for (i=0; i<100; i++) {
      if (radio.testRPD())
        strength++;
      delay(4);
    }
   
    /* Discover the highest bit set in our 'strength' variable; that will
     * be the size of the bargraph we'll show for this channel.
     */
    j = 0;
    for (i=7; i >= 0; i--) {
      if (strength & (1 << i)) {
        j = i+1;
        break;
      }
    }

    /* Each channel represents a 1MHz bandwidth starting at 2400MHz, e.g.
     * channel 125 is 2525MHz, channel 64 is 2464MHz.
     */
    printf("\nChannel %d", chan);
    printf(" ("); printf("%d", 2400+chan); printf("MHz): ");
    for (i=0; i < j; i++) {
      printf("*");
    }
    printf("   %d - %d", j, strength );
   
    if (radio.available()) {  /* Just in case some data got inadvertently received while
                               * we were doing our scan, clear it out.
                               */
      radio.read(dumpbuf, 33);
    }
  }  // Loop to the next channel...

  printf("\nChannel scan done; halting CPU.  Hit RESET to do another scan.\n");
  // Serial.flush();
  // radio.deepsleep();
  // while(1) ;  // Permanently halt the CPU.  Using while(1) is more portable e.g. to Stellaris LP.

    return 0;
}

And I got this output :

Channel 0 (2400MHz): *******   7 - 80
Channel 1 (2401MHz):    0 - 0
Channel 2 (2402MHz):    0 - 0
Channel 3 (2403MHz):    0 - 0
......



Channel 54 (2454MHz):
0 - 0


Channel 55 (2455MHz):
0 - 0



Channel 56 (2456MHz): ***   3 - 4



Channel 57 (2457MHz):
0 - 0



Channel 58 (2458MHz): **   2 - 3
Channel 59 (2459MHz): *   1 - 1
Channel 60 (2460MHz): **   2 - 2
Channel 63 (2463MHz): ***   3 - 4
Channel 64 (2464MHz): ***   3 - 6
Channel 65 (2465MHz): ***   3 - 4
Channel 66 (2466MHz): ***   3 - 6
Channel 67 (2467MHz): *****   5 - 16



Channel 68 (2468MHz):
0 - 0


Channel 69 (2469MHz):
0 - 0

( sorry for messing up the output, I don't know what is happening )

So now I'm sure that my transmitter is at channel0 and the activity around channel 60 may be due to my router.

Cat 6 network Cables max Amp?

verrverr — Mon, 15 Sep 2014 02:16:32 GMT

Hi i buy my stepper motor for my project and i will try to put the cable in the wall but i'm not sur if a Cat 5-6 network cable with 8 wire inside can handle the load. This is the link to the stepper motor https://www.adafruit.com/products/324

and Link to the cable http://ca.startech.com/Cables/Network/Cat-6/#N6PATCH100BL

I will run with 12v and they take 350mA i found on the net the network cable with 24avg can handle 30v up to 3.5A and some place 350mA

What you think? Cat6 network cable do the job?

How to send out RPS telegram to control TCM320C module from OpenHAB

bose — Sun, 07 Sep 2014 14:15:46 GMT

Hello,

I am trying to send out RPS telegram from the OpenHAB rules when the Rocker on the GUI is switched - either On or Off.

In the current setup when the Rocker switch of the PTM200C module is pressed the Rocker on the GUI gets updated.

However when the Rocker on the GUI is clicked it does not send out the RPS telegram.

Kindly help me out with this.

Warm Regards,

Abhijit

OpenHAB : How to get text input from OpenHAB URL

ravi_butani — Fri, 05 Sep 2014 03:49:07 GMT

I need text input field for reset password and username from OpenHAB url.... and I am not able to do this... Can you help me for doing this...?

Simply I need Text Input field in URL which store Text in string...

Raspberry pi B+ power

verrverr — Sun, 31 Aug 2014 15:41:50 GMT

With old model B they have 3 method to power the pi, https://www.youtube.com/watch?v=lGELwCXeNTs

With the new B+ does it's more secure to power the pi using the GPIO Pin ? The 2amp fuse was skip ?

I would make a Control station with a PiTFT screen mounted on the wall with power directly connected in the case, no cable visible.

persistence database - what works?

electronichamsters — Fri, 29 Aug 2014 23:47:11 GMT

Inderpreet's last post on persistence database was interesting. He tried RRD4J. Thanks for sharing this Inderpreet.

I tried MongoDB on the Pi. The problem for me is performance. The Pi slowed to a crawl when I had MongoDB on the same Pi as OpenHAB. It would be nice to have an atomic solution where the database lived on the same Pi as OpenHAB. Just wondering if others can shared what they've tried and how it effected the performance of the OpenHAB UI.

Ideally, I'd like to have a DB like MongoDB and use a good data visualization program - something like Pentaho maybe - to chart energy usage data along with indoor/outdoor temperature, humidity, etc..

Need Help regarding HSM100 Schematic

ravi_butani — Fri, 29 Aug 2014 08:21:19 GMT

Do any one have HSM100 humidity sensor schematic...? I need it for understand how my other analog sensor will talk with STM330 temperature sensor. I have tried to find it on enocean website but no luck... I have tried to get rough idea about hsm100 schematic using pics...but all pics available on internet is with bottom side..but no image from top..

Note: I do not require HSM100 for my project but I just need Schematic of HSM100 to build my custom analog sensor...

What I know from STM330 user manual is..

SWPWR is VCC and only available when module not in deep sleep

GND is ground for HSM100

ADIO3 is Analog input from HSM100

Other pins ---I have no idea

may bebryan.edelman@enocean.com can you please help me in this matter...?

How to place my Index in front page

vish — Thu, 28 Aug 2014 05:20:49 GMT

How to get my Index page in this part of FMN challenge site?

Is this automatically selected or do I have to do something??

Thanks,

vish

Problem in Twitter Action with OpenHAB

ravi_butani — Tue, 26 Aug 2014 08:24:33 GMT

Does any one have tried for Twitter Action with OpenHAB? I am facing problem with this ... Every time authentication get failed...

EOP 350 - How to use as Gateway?

vish — Sun, 24 Aug 2014 11:03:40 GMT

Hello All,

I'm trying to use EOP350 as a gateway to my PC. i changed the jumper setting to 'GATEWAY' and now I want to see the serial dump from EOP350 in PC. When I connect EOP350 to PC( running linux ), it shows two USB ports -- ttyUSB0 and ttyUSB1. In this USB0 is not at all responding. USB1 is responding, but i think I'm not sure about what is the correct baudrate to set. I tried everything from 9600, 19200 to 115200, but the response I'm getting is not the one I used to get with my EnOcean Pi( ESP protocol ). While setting to 57600bauds, i'm getting continuous streams of 0x00 with 0xE0 here and there. I'm testing the response by pressing the rocker switch. I'm supposed to receive 21Bytes + 21Bytes( Press and Release ), but what I'm receiving is different

@9600 buads : 14Bytes + 14Bytes

@19200 buads : 24Bytes + 22Bytes

@57600 buads : 31Bytes + 30Bytes

I'm using 8N1 configuration for serial monitor( It worked perfectly with EnOcean Pi at 57600bauds ).

Can anybody please tell me what is the correct baud rate to set?

Thanks ahead,

vish

Problem with teachin for TCM320C in Mode 3

bose — Sat, 23 Aug 2014 12:44:17 GMT

Hello,

I am trying to set the Mode 3 (4 relay channel mode) of the TCM320C by setting the ADIO0 pin at 0.82V (25% 3.3V approx).

I followed the sequence:

1. Press CLR button(> 0.5s) on EOP350 board to clear the Previous configuration

2. Press the Rocker on the PTM200C

3. Press LRN button(>0.5s) to finish the learning for CH0

4. Press LRN button(>0.5s) to start the learning for CH1

However this is not blinking.

I have made the shorts on the board connected SJ8, SJ9 and SJ10.

Kindly out line the clear procedure to have this mode working.

Warm Regards,

Abhijit

Controling the TCM320C via EnOcean Pi

bose — Sat, 23 Aug 2014 05:15:57 GMT

Hello,

I have used the LRN feature to train the TCM320C with one of the switches.

I wish to know if there is a technique to send out a radio telegram to switch On and Off the Channel 0 of the TCM320C module.

Kindly help me out with this.

Warm Regards,

Abhijit

Enocean RF Receiver 315MHz

ravi_butani — Fri, 22 Aug 2014 06:18:51 GMT

bryan.edelman@enocean.com Need help regarding Enocean RF Receiver 315MHz to implement some controlling in my project with relay switch and dimming... do any one knows about such product...? I have came across RCM110 RCM110 - ENOCEAN - RADIO MODULE, RX, 868.3MHZ, WHIP | element14 India but its 868MHz and I cant able to find same product with 315MHz....Is RCM110 available for 315MHz.

[solved]: EnOcean Pi and Fhem, linux issues

electronichamsters — Thu, 21 Aug 2014 05:41:43 GMT

Hello,

A lot of the competitors have already gotten their EnOcean Pi talking to their devices, but I'm still having trouble.

I've been following Todd Cowley's post http://www.element14.com/community/roadTestReviews/1795.

I'm still having issues with "Can't open /dev/ttyAMA0: Permission denied" error in the Fhem log file. I disabled the serial port using the script, and I've verified that AMA0 does not appear in inittab or cmdline.txt. Todd suggested that you add users "pi" and "fhem" to the tty group. I didn't have a user fhem, so I had to add that user. But even after that, I still get the permission denied message when accessing /dev/ttyAMA0.

Is there something different on B+ vs. the B that Todd was using?

Thanks for any advice.

Eric

Tektronix saved data Desktop Viewer

verrverr — Sun, 17 Aug 2014 22:31:34 GMT

Do you know a good software for viewing csv file record by a Tektronix oscilloscope TBS 1052B-EDU. For Windows 8.1

Est-ce que vous connaissez un bon logiciel pour la visualisation des fichier .csv enregistrer par un oscilloscope Tektronik TBS 1052B-EDU. Pour Windows 8.1

Help : How to interface EnOcean Reed switch and temperature sensor

vish — Sun, 17 Aug 2014 10:15:40 GMT

Hello all,

I'm a bit struggling to find out how to interface temperature sensor and reed switch to openHAB.

These are the hexdumps of enocean transmission at my serial port :

// Reed Switch
55 00 07 07 01 7A D5 09 00 83 35 06 00 01 FF FF FF FF 31 00 A0    // CLOSED
55 00 07 07 01 7A D5 08 00 83 35 06 00 01 FF FF FF FF 31 00 34    // OPEN
55 00 07 07 01 7A D5 09 00 83 35 06 00 01 FF FF FF FF 2E 00 34    // CLOSED
55 00 07 07 01 7A D5 08 00 83 35 06 00 01 FF FF FF FF 2C 00 8A    // OPEN

// Temperature sensor
55 00 0A 07 01 EB A5 00 00 32 00 00 83 02 E5 00 01 FF FF FF FF 48 00 02
55 00 0A 07 01 EB A5 00 00 2E 08 00 83 02 E5 00 01 FF FF FF FF 48 00 64
55 00 0A 07 01 EB A5 00 00 2D 08 00 83 02 E5 00 01 FF FF FF FF 4C 00 18
55 00 0A 07 01 EB A5 00 00 3D 08 00 83 02 E5 00 01 FF FF FF FF 44 00 CA

From the above hexdumps, I decoded my sensor ids( based on ESP3 and EEP documents )

Reed Swicth - 00:83:35:06
Temp Sensor - 00:83:02:E5

And then I wrote my openHAB configs as

// listing for 'model0.items'
Group All
Group model0_Weather    (All)

// EnOcean devices
Switch Rocker0 (All) {enocean="{id=00:1A:34:82, eep=F6:02:01, channel=B}"}   
Switch Rocker1 (All) {enocean="{id=00:1A:34:82, eep=F6:02:01, channel=A}"}
Number TempEnocean "Temperature [%.1f C]" <temperature> (All) {enocean="{id=00:83:02:E5, eep=A5:02:05, parameter=TEMPERATURE}"}
Contact myWindow "Window [MAP(en.map):%s]" (All) {enocean="id=00:83:35:06, eep=D5:00:01, parameter=CONTACT_STATE:closed"}

Group model0_Weather_Chart                                                    (model0_Weather)
Number model0_Weather_Temperature         "Outside Temperature [%.1f °C]"    <temperature> (model0_Weather_Chart) { http="<[http://weather.yahooapis.com/forecastrss?w=2295424&u=c:60000:XSLT(yahoo_weather_temperature.xsl)]" }
Number model0_Weather_Temp_Max         "Todays Maximum [%.1f °C]"    <temperature> (model0_Weather_Chart)
Number model0_Weather_Temp_Min         "Todays Minimum [%.1f °C]"    <temperature> (model0_Weather_Chart)
Number model0_Weather_Chart_Period        "Chart Period"
DateTime model0_Weather_LastUpdate        "Last Update [%1$ta %1$tR]"    <clock>

and

// listing for 'model0.sitemap'
sitemap model0 label="Main Menu" {
    Frame label="Enocean Devices" {
        Switch item=Rocker0 label="Rocker 0 Channel B"
        Switch item=Rocker1 label="Rocker 1 Channel A"
        Text   item=TempEnocean valuecolor=[>25="orange",>15="green",>5="orange",<=5="blue"]
        Text item=myWindow
    }
}

Now the problems are

1. While loading the site, temperature is not displayed. After some time( after next transmission, I guess ) temperature is updated to UI. But if I again reloads the page, it disappears.

2. Even if I'm closing and opening my reed switch with the magnet provided, this is not updated to the UI. UI always stays blank for my reed switch. Additionally, if I'm trying to reload the page, I'm getting this WARNING in openHAB runtime terminal

15:40:34.517 WARN  o.o.c.t.i.s.MapTransformationService[:70] - Could not find a mapping for '-' in the file 'en.map'

I'm using the same 'en.map' file provided with sample demo of openHAB.

Please help,

vish

Use air dry clay for custom EnOcean enclosures?

electronichamsters — Wed, 06 Aug 2014 03:57:47 GMT

Hello,

I was wondering if anyone's try using air dry clay for custom enclosures? They're much cheaper than 3D printers for sure, and they're really light weight as well. Good for hanging on walls.

Since you need to have a window in the enclosure for the photo cell, I was thinking the photo cell could be made into a feature within the enclosure. So, for my little girl's baby room temperature monitor, I was thinking of fashioning a clay windmill, with one of the vanes of the windmill being the EnOcean temperature sensor with a cutout for the photo cell. But I'm not sure if the clay would hurt the electronics? And I would need to try to position the temperature sensor with contact with air.

programmer for EnOcean?

electronichamsters — Wed, 06 Aug 2014 01:36:32 GMT

Hello,

This is my first time playing with EnOcean products. If I want to utilize the GPIO on the STM330 temperature sensor, the manual gives a method of doing so, but it requires either the USB300 USB-SPI adapter or the development board. I was hoping that would come with the sensor kits, but I didn't get one. Did anyone receive one with their kit?

Does anyone know of some alternate method of programming the STM330? Being able to program it opens up a world of possibilities...most of what I was hoping to do with it.

How chill is your fridge???

crosseyejack — Tue, 05 Aug 2014 22:59:15 GMT

So playing around with the EnOcean temp sensor and I have the thought, "I wonder if it will work in my fridge???"

Now where the pi is set up atm there is some fairly well built walls in the way between it and the fridge and of cause the fact that a fridge is a big metal box. So will it work? Well it turns out it does and the sensor is reporting back 3.9C (around 39F).

Just a bit of a random post. (Hence the discussion not blog post, blog post will come either Wednesday or Thursday. Want to chase this bug a little more first).

Dan :-)