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    • William Meli

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

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      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

      💬 MDMSNode "Lighting X3" (based on ESP8266)
      OpenHardware.io • relay temperature esp8266 ota wifi acdc tasmota • • openhardware.io  

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      bilbolodz

      First batch of devices arrived. Looks fine. I hope I will manage to install it in garden to the end of the week.
    • openhardware.io

      💬 Venta Connected (WiFi control for Venta LW45 humidifier)
      OpenHardware.io • wifi smarthome • • openhardware.io  

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    • LeoDJ

      ESP8266 Gateway start without WiFi connection
      Troubleshooting • gateway mqtt esp8266 wifi no wifi failsafe • • LeoDJ  

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    • openhardware.io

      💬 HALO : ESP32 multi transport GW/Bridge for Mysensors
      OpenHardware.io • gateway rfm69 wifi nrf24 bluetooth ble esp32 rgb rfm95 bridge blaster serial wi-fi sniffer can • • openhardware.io  

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      berkseo

      @scalz said in HALO : ESP32 multi transport GW/Bridge for Mysensors: the webapp was great, but I converted it to native crossplatform app for better versatility&perf, so I can use one app for my devices, like Ethernet for HALO etc, or Serial for my other Janus gw dongle, bluetooth.. To be honest, I've not updated anything yet for a few reasons, like very little spare time for a public release + support for such "big" project. (easier to handle local projects). Sorry, still no eta for the moment.. It is clear that there is not enough time. But this project can become popular. That's what's missing MySensors. ...This void must be filled.
    • openhardware.io

      💬 ESP Power Strip
      OpenHardware.io • relay esp8266 wifi current sensor power strip • • openhardware.io  

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    • Samuel235

      SONOFF Issues?
      Hardware • switch wifi sonoff lighting switching • • Samuel235  

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      Samuel235

      @gohan - Dell R710 over here, brought pretty cheaply in the UK tbh. I have a few things running on it as I'm Microsoft trained and certified so i enjoy messing with that kind of stuff. I was once in that field and attempted to get some work but nothing ever came from it (i got sick of hearing "Sorry, you don't have sufficient work experience") so I've ended up back in University studying mechatronical engineering Anyway, that is another topic for discussion, you're welcome to message me anytime for a chat, would be nice
    • nicomedia

      Send RelayActuator state back to gateway
      Development • relay vera wifi sonoff • • nicomedia  

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      hek

      The send-function is used to send updates to the controller, in your case the physical-button-switch-change. Doing the send, does not control anything on the node itself.
    • openhardware.io

      Happy Bubbles Bluetooth Presence Detector
      OpenHardware.io • mqtt esp8266 wifi bluetooth ble presence bluetooth low energy presence detection ibeacon eddystone • • openhardware.io  

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      nemik

      Qu3Uk, I did get a chance to test with a Fitbit recently. It technically worked, but not all that well. The thing is, the Fitbit only advertises every 2 seconds so latency is a bit high. But worse, its apps really want to be connected to it often to sync; and whenever it's connected, it stops advertising and the detector then can't pick it up. TommySharp, At this point I don't plan to modify the board much but having it read environmental sensors would be a cool feature! For that, would be nice to make little beacons that read sensors and advertise/broadcast the readings every few seconds. Then they could be very low-power, run on coin-cells for months, and could be placed anywhere instead of needing it to be hooked up to USB power like the main board is. Like these: https://sen.se/peanuts/ I'm curious if it could read them. As for enclosures, I know. I would love to have some nice ones but at this point I'm making too many boards to 3D print enclosures, but too few to afford injection-molding tooling to make a custom case.
    • openhardware.io

      vThing - CO2 Monitor - Dual Beam - Wifi
      OpenHardware.io • esp8266 openhab wifi 3d print home automation co2 domotica • • openhardware.io  

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      Vladimir Savchenko

      @epierre said: I had the contact with this seller, but an international money transfer was needed and is expensive... yeah, they also have a minimum order quantity and ship with DHL only, so you have to pay import taxes to EU so it only makes sense if you order a big quantitiy and then try to resell it somehow all in all a hobby that at least has some return on investment, compared to other ones i had :)) You're courageous th have gone on kickstarter, from memory seeedstudio nearly went down because of an error on a crowdfunding project and had to produce and ship (the more expensive par of it) a remlacement for the first batches... ahh .. i didnt know this about them... and in their scale - i can undertand it happened to me as well but in my scale it was rather a paid lesson :))))
    • Alexander Voronin

      ESP8266 WiFi settings in EEPROM
      Development • esp8266 wifi eeprom • • Alexander Voronin  

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      Alexander Voronin

      @Yveaux I have 34 of 80k RAM used for this sketch, so 128 bytes looks like "a bit more". You can not use progmem with ESP and mysensors now because PSTR redefined as PSTR(x) (x) so all strings are really in RAM
    • gregl

      Indoor BLE Location ( or presence detection)
      General Discussion • mqtt wifi ble • • gregl  

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      Toyman

      Actually, it's not 100% MySensors-related, but I have a working setup consisting of iBeacon (either HM10-based or PI-based) and Beecon app. When Beecon senses the iBeacon it can trigger various actions, eg make http requests or call IFTTT recipes
    • vekraman76

      PIR motion sensor that sends cloud notifications via wifi
      Development • arduino motion wifi • • vekraman76  

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      epierre

      a spark core wouldnbe the best in this case
    • Diego Baravalle

      Low-cost WIFI modules as alternative
      Hardware • wifi module low-cost • • Diego Baravalle  

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      Yveaux

      @soward said: these were covered to some extent in another topic FYI: http://forum.mysensors.org/topic/479/the-new-esp8266-wifi-models