Navigation

    • Register
    • Login
    • Search
    • OpenHardware.io
    • Categories
    • Recent
    • Tags
    • Popular
    1. Home
    2. Tags
    3. led
    Log in to post

    • William Meli

      Car battery health monitoring and alerts system with IoT integration
      My Project • mysensors temperature led ota iot wifi battery powered ble bluetooth low power rgb motion sensor hardware 3d print battery sensor fota battery monitor mcu enclosure measurement battery voltage pcb layout alarm system bluetooth low energy 32bit software pcb manufacturi pcba dc-to-dc antenna • • William Meli  

      5
      5
      Votes
      5
      Posts
      93
      Views

      William Meli

      @NeverDie Thx for appreciating the work done. There will also be an open source part in the future. When and how extensive the open source part will be, remains to be seen. The release of certain information (block diagram, ..., in this post) is related to those open source parts. There are some OBD solutions, however most of them (in my experience) give back low frequency data put by the car manufacturer on the OBD-bus (CAN, ...). Therefore transients evolving directly from the battery could only be recorded if the manufacturer sends those data accordingly on the bus. Due to the small bandwidth(also because of other car data that have to be sent, ...), such battery data are sent more often once per second or less. Fast battery events (i.e. cranking events, ...) are therefore imperceptible. Unless the manufacturer processes the fast events and then sends them (once per second or less), which is very unlikely if the manufacturer does not market this feature itself. Third parties devices for high frequency sensing costs several hundreds dollars. In my experience, important battery states (especially the fast ones) are recorded by measuring and processing corresponding data directly on the battery. I agree with you about the limits related to the communication over Bluetooth. But i think Bluetooth 5.0 will improve a lot. However, WiFi will always remain an important option due to the high data throughput. The combination of both (BLE & WiFi), especially with regard to energy consumption, will gain in importance.
    • openhardware.io

      💬 24LEDs
      OpenHardware.io • led microcontroller attiny2313 • • openhardware.io  

      3
      0
      Votes
      3
      Posts
      212
      Views

      EvgSor

      Good point! Will consider in the next version...
    • openhardware.io

      💬 MSMDLed
      OpenHardware.io • mysensors controller led • • openhardware.io  

      1
      0
      Votes
      1
      Posts
      533
      Views

      No one has replied

    • openhardware.io

      💬 Microscope Andonstar ADSM201 LED Light
      OpenHardware.io • led dimmer giltesa.com giltesa adsm201 andonstar • • openhardware.io  

      2
      1
      Votes
      2
      Posts
      761
      Views

      Nca78

      Nice job, efficient and clean ! I'm tempted to buy this microscope now, so I can make your led light
    • openhardware.io

      💬 RGB Led Strip Board (MysX)
      OpenHardware.io • led dimmer mysx led strip • • openhardware.io  

      16
      0
      Votes
      16
      Posts
      2902
      Views

      sundberg84

      @yoshida I'm not sure... Maybe
    • openhardware.io

      💬 MySensors singleLED
      OpenHardware.io • mysensors rfm69 led • • openhardware.io  

      5
      0
      Votes
      5
      Posts
      1698
      Views

      ThetaDev

      @krisztian Hi krisztian, the singleLED board - as its name suggests - features only one LED output. If you want to have a setup with multiple LED strips you need to design a board with multiple outputs. I have already designed a board with 4 outputs, but I haven't built it. In terms of software you need to register multiple sensors in your program like this: #define numCh 4 //the number of outputs const byte ledPins[] = {9,6,5,3}; byte ledLevel[numCh]; boolean ledDimWay[numCh]; //in the setup function request the dim levels from the gateway for(byte i=0; i<numCh; i++) request(i, V_DIMMER); //in the presentation function register multiple lights for(byte i=0; i<numCh; i++) present(i, S_DIMMER); //if you receive a signal, you need to check for the sensor id setLED(message.sensor, requestedLevel); //to set the LED level (function: setLED) you need to use the sensor id to determine brightness and pin //Fade LED to set level int delta = (level - ledLevel[child]) < 0 ? -1 : 1; //Write to LED analogWrite(ledPins[child], map(ledLevel[child],0,100,0,255)); I will probably publish the whole code once I have built and tested the 4LED controller (i call it "MySensors rainbowLED") Hope I could help you ThetaDev
    • openhardware.io

      💬 LED RGBW Controller
      OpenHardware.io • mysensors nrf24l01 atsha204a led rgb w25x40clsnig rgbw • • openhardware.io  

      4
      0
      Votes
      4
      Posts
      1839
      Views

      giltesa

      I have already published all the documentation, on my website, GitHub and openhardware.io For now I leave the node as finished. SmartHome: Wireless LED RGBW Controller – 00:55— giltesa
    • openhardware.io

      💬 Dimmable Led Strip board (MysX)
      OpenHardware.io • led mysx led strip • • openhardware.io  

      10
      0
      Votes
      10
      Posts
      2245
      Views

      sundberg84

      @yoshida hi! Im not sure where you get that #9 should be A5? Looks right to me. The pin is connected to pin 9, and that is D3. For a rotary encoder, it depends on your input - but don't you want an analog signal in? In that case you use the analog pins. Edit: offcourse, if you use a module converting it to digital like described in the the build section you use a digital pin.
    • od1

      Is MySensors relevant for this project pitch
      General Discussion • led wireless motion sensor • • od1  

      8
      0
      Votes
      8
      Posts
      1822
      Views

      od1

      @Nca78 Yes, I was actually thinking using DIP switch (or even more easy to read thumbwheel switch) to give a unique ID to each node! As soon as I receive the extra radio modules I ordered, I'll test that. @Grubstake I'm afraid you're right! But it's ok to have just a few days of battery life. As I wrote, it might be often disassembled and reassembled.
    • robosensor

      Changing setIndication behavior
      Development • led blink setindication • • robosensor  

      1
      0
      Votes
      1
      Posts
      622
      Views

      No one has replied

    • openhardware.io

      💬 Automatic stairs led lighting arduino shield
      OpenHardware.io • mysensors arduino led automatic stairs • • openhardware.io  

      4
      0
      Votes
      4
      Posts
      2923
      Views

      Ihor

      there is no schema in this archive
    • openhardware.io

      Fadecandy
      OpenHardware.io • led usb ws2811 • • openhardware.io  

      2
      2
      Votes
      2
      Posts
      1310
      Views

      mfalkvidd

      Very nice! I'm planning to build a 12x12 led 40x40cm "screen" and Fadecandy looks like a great match to create art to display on it.
    • openhardware.io

      Dimmable light for makeup mirror (battery powered)
      OpenHardware.io • led simple saf • • openhardware.io  

      2
      1
      Votes
      2
      Posts
      1154
      Views

      mfalkvidd

      This is a simple, low-cost and quick project that can get a high spouse acceptance factor. Mirror Remove the led strip from the aluminum profiles. Cut the aluminum profiles and the covers to appropriate length. I used a hacksaw to cut profile+cover at the same time to ensure the got the same length. Cut the led strips at one of the cut points using a side cutter. Remove the old wires (they are too short to reach the box) and solder new wires. Put the led strip back inside the aluminum profile. Note that there is a small grove at the back for the strip, this ensures that the strip is close to the profile to maximize cooling. Glue the profiles to the mirror. I used slow-curing epoxy. Electronics box Drill holes in the project box for the switch (6mm) and the potentiometer (6mm should be enough but was too tight so I used 8mm). Drill a 4mm hole for the wires to the led strips. Upload the sketch to the Arduino Connect the Arduino and the battery packs and put them inside the project box. Fasten the project box using double-sided tape. Big thanks to my wife for letting me use the action photo.
    • openhardware.io

      💬 MySensor Dioder (Ikea)
      OpenHardware.io • mysensors arduino contest2017 led rgb ikea dioder hue trimmer • • openhardware.io  

      41
      2
      Votes
      41
      Posts
      13447
      Views

      pentti12

      Do you have interest to try OH2 together with MySensors Ethernet Gateway to get working? I do not have enough force to push developers to make this happen. At the moment there is some problem on this, because full control is not possible. I think that MySensors Serial Gateway is working with OH2, but I don't like to use it. I like to connect my devices into LAN not cabling via old fashioned way using serial wires.
    • openhardware.io

      💬 MySGrowLED - MySensors control for Grow Lights or Greenhouse
      OpenHardware.io • mysensors nrf24l01 temperature atsha204a led i2c eeprom at25df512c fan grow light • • openhardware.io  

      14
      2
      Votes
      14
      Posts
      4197
      Views

      emc2

      The choice of MOSFET can be tricky. Seems that irlz44n was discontinued so you may need to find one adapted to the voltage and current you want to handle. In all the cases you need to get a logic MOSFET too, meaning that they are fully open usually around 1 to 3V. Also I'm sort of confused as it seems to me that L7812CV is a Voltage regulator, not a MOSFET. So if you are actually using that in the MOSFET spot it will definitively not work. Especially if you are handling high current or voltage I would recommend using one from a reputable source for your MOSFET, I recently switched from mouser / digikey / aliexpress to mostly use http://www.arrow.com as you get free regular shipping, event if you order a couple of components (no affiliation to them whatsoever).
    • openhardware.io

      Starry Sky
      OpenHardware.io • temperature humidity led mysensor light contest2016 • • openhardware.io  

      6
      3
      Votes
      6
      Posts
      2623
      Views

      samdel

      this kind of optic fiber is probably only plastic so for a full DIY , you can use also fishing wire with a big power led or an old chistmass tree optic fiber lighted.....
    • mfalkvidd

      Best dimmable countertop lights?
      Hardware • led light dimmer • • mfalkvidd  

      14
      0
      Votes
      14
      Posts
      6314
      Views

      BulldogLowell

      @Samuel235 said: Just one of many ideas, the possibilties are endless. I'de always go for RGB leds over just white, allows for more customisation while able to still give you the same white as the white leds. ... unless, as in my use case, colors are not needed. I'm too stingy to pay for the unused dry powder!
    • openhardware.io

      RGBW LED Controller
      OpenHardware.io • mysensors temperature humidity led dimmer enclosure • • openhardware.io  

      9
      0
      Votes
      9
      Posts
      4249
      Views

      sebas

      This should work with Domoticz, it's what I intend to use with it. I've received the boards from China and I'm currently working on a version 2 of this board. There are some errors in the design of version 1 that I need to get out. New version will be up shortly.
    • Homer

      12 volt downlight dimmer
      Development • arduino led switch dimmer • • Homer  

      3
      0
      Votes
      3
      Posts
      1816
      Views

      BartE

      @Homer I've made a 2 double LED dimmer as well works very good and can easily be extended with more dimable leds. See my project here
    • bjornhallberg

      DIY Outdoor LED
      General Discussion • led diy driver 12v cree • • bjornhallberg  

      60
      0
      Votes
      60
      Posts
      21655
      Views

      activemind

      @mfalkvidd said: I am using them at 12V so the power would be ~4W. Not too much but still enough to get the sink hot! The voltage makes no difference. 5A is still 5A. you are right brain fart
    • destos

      All in one board with apple phone charger brick wrap.
      Hardware • arduino temperature humidity led proximity • • destos  

      6
      2
      Votes
      6
      Posts
      3290
      Views

      hek

      @destos Wow!
    • griffinsaic

      Home Security Motion Trigger Monitor
      My Project • vera led motion veralite • • griffinsaic  

      3
      0
      Votes
      3
      Posts
      2483
      Views

      griffinsaic

      Thanks for the reply. I am not looking to use an LCD, although that may be the best solution. For now, I plan on creating a simple set of LEDs and buttons. I have looked over the code, and was wondering which part of the code is retrieving the status of a sensor? What if I have multiple motion sensors, how would I retrieve each unique value?
    • jocke4u

      RGBW LED strip current
      Hardware • led rgbw • • jocke4u  

      1
      0
      Votes
      1
      Posts
      2087
      Views

      No one has replied

    • Drcashman

      Dimmabe LED Actuator
      Troubleshooting • led • • Drcashman  

      7
      0
      Votes
      7
      Posts
      2993
      Views

      jribera

      I didn't think the voltage drop would make enough of a difference to notice, but i guess it does. I might have to research and look for a more efficient Mosfet.