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Talk about fun sensor hardware, MCUs, PCBs and how to power your sensors here.
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  • NRF24L01+ SI24R1

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    @grumpazoid It is not the same module. Is another with a simpler antenna. [image: 1548342630225-photo_2019-01-24_12-10-07.jpg]
  • fody weather station

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    So i have given up with iobroker and used FHEM instead, worked well first time.
  • Siren build

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    G
    Parts arrived. Used the default relay sketch. Works great. Nice and loud. [image: QwdWGLyb.jpg]
  • Not working serial gateway connecting sensor

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    mfalkviddM
    The log parser can be used to make it easier to read the log. Gateway link Node link The gateway log shows that the gateway sees the find parent request sent by the node, and sends a response. The node log shows that the node doesn't see the response. What is the distance between the gateway and the node? It needs to be at least 1 meter / 3ft, otherwise the signal can be too strong. Do you have a capacitor on both the nf24l01+?
  • nRF52832 and NRF2401

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    mfalkviddM
    @magpern yes. See "Configure MySensors" on https://www.openhardware.io/view/376/MySensors-NRF5-Platform
  • Sonoff 433 bridge

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    alowhumA
    @alexsh1 I've built something you might be interested in: https://forum.mysensors.org/topic/10094/candle-433-hub-a-universal-433mhz-signal-cloner/1
  • Tabletop scene controller

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    alowhumA
    FYI, I finished the 433 node I talked about: https://forum.mysensors.org/topic/10094/candle-433-hub-a-universal-433mhz-signal-cloner/1
  • Are rfm69 & nrf24l01 compatible

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    J
    @mfalkvidd ok thanks for your answer.
  • GY type breakout parasitic current draw.

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    D
    Thanks Gohan, there are a few reasons for me to use the BME outside. The most important: power management (and that explains my conundrum now...). The unit contains a light sensor. That basically controls my lighting in the living room. So that needs to measure quite often to be able to control it with any accuracy. I've chosen every minute as a basis. That was also given when I found a sketch with a weather prediction function based on barometric pressure. That sketch needs to read the pressure every minute. That means that the sensor wakes up every minute. Also the radio. That's a huge load. Not really ideal for battery power. But that meant I was able to add the light sensor very easily. So now I put them in an outdoor sensor with a solar panel to keep the battery topped up. That still means I have to watch the consumption in sleep. Here in NL we have quit a few overcast days, so the panel will not be able to keep up with the demand on those days. The solution in place now is to wake up the sensor 1 second before measurement. Power up the sensors, put the controller and radio back to sleep for one second. Then do the measurement stuff, power down the sensor and I2C bus and go into deep sleep. Average current consumption measured over 4 hrs is now 140uA. Sleep current for the whole system is 36uA. That is including the charger board and Moteino voltage regulator. The unit is now up for 3 weeks and the panel keeps up very good. Most of those days were overcast. So when the cold hits next week with clear skies it should be full all the time. Battery level is sent every 6 hours. And next to that I have implemented a voltage measurement that signals when the battery is being charged. Energy is coming in, so I am allowed an extra data transfer... 😝 Now see if it dies on me again end of november 2019...
  • Resettable fuses.

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    skywatchS
    @grumpazoid said in Resettable fuses.: I have made up some 500mA quick blow fuses that I already have from a trusted source. I am very happy to hear this. I am sure you will sleep safer and be prouder of your project by being more professional about safety. Whilst there are some things you can get away with using cheap components for, safety and power supplies are not to be taken lightly.
  • Leak detector cables.

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    ErickSaintE
    Yup. Just as simple as that. With the pull down in place I get 0-4 on that pin when dry. And between around 50-300 when wet, depending on a few drops of water or cable fully submerged. Now I just need to piece everything together, both hardware and software. Trying to make a fail safe for my hydroponic system. The only way it can fail catastrophically, and flood my downstairs neighbors place, is if the drains fail and the pump keeps running. I'm using the leak sensor rope to go around my buckets and trigger a relay that will kill the pump at the first sign of any water under the buckets.
  • Arduino DUE MySensors Library Support

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  • Gateway with Relays (4) on WEMOS D1 R1

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    @bjacobse I liked the look of espEasy, but I had a lot of trouble getting it to connect to my wifi after adding my network settings. (I had to download the latest dev build) I'll have a go at the code you linked though, as I kinda like the idea of keeping mycontroller, and the relay actuator example looks too simple to be true!
  • This topic is deleted!

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  • 18650 battery power board

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  • My Ethernet Gateway Board (W5500)

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    G
    Hi i have the W5500 with pins and board this one and Arduino Uno R3 anything i need to change? i guess i don't need that 3.3 converter right? i did the change of \Ethernet\src flashed the board now i will connect the NRF24 just like you did ? same pins? anything else I should change?
  • Suppprt PIC MCU

    microcontroller mcu pic
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    R
    Thanks for the answers. For sure it is possible to buy an ATmega and even a full-featured debugger would be acceptable compared to the effort of porting. But still, I am very biased towards the PIC without logical or economical arguments. I did not yet work with the mysensors libraries and only browsed quickly through the github repo. Maybe someone can give me a few hints to estimate the effort deeper than just claiming it as "much workload"? What I see so far is: make the C++ code compile (translate to C with clang/llvm and compile with the XC8 compiler) create a new HAL (in hal/architecture) which seems not too much effort for making it initially working Questions: Do I see it right, that there is a linux-port available? -> I would expect much more effort to port from AVR to linux than to port it to a different MCU What about the licensing? It looks like the code is GPLv2, but in the CLA it seem that contributors need to give away their rights on the contributions and that mysensors can even redistribute the code under another license - which seems completely against the principles of the GPL. Can someone explain that in more detail?
  • Erratic battery reading when powering via RAW pin

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    @affordabletech Have been busy soldering today. Used pro mini with regulator and LED removed + HC-SR501 with regulator and diode removed. 18650 cell for power. The NRF24 radio us one of the bad ones from with poor range. On TX it used about 4mA but only 42uA while sleeping. Battery reporting is working well. [image: eFZHxWvb.jpg]
  • An Esp8266 Nextion Scene controller??

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    L
    I stumbled across this thread while searching for something related and thought I'd resurrect it to mention my HASwitchPlate project, which utilizes an ESP8266 as a MQTT-to-Nextion gateway to act as a wall-mounted scene controller. The project includes code for the ESP8266, Nextion, and home automation platforms including Home Assistant and OpenHAB. A PCB has been developed to allow running from AC power, and 3D-printable models are provided to mount the project into a single-gang work box common in North America. The end result is a scene controller you can build yourself with all the necessary components (software, electronics, and physical enclosure) ready to download.
  • GPS Tracker with Arduino

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    dbemowskD
    What about something like this: https://www.cooking-hacks.com/projects/arduino-realtime-gps-gprs-vehicle-tracking

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