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Talk about fun sensor hardware, MCUs, PCBs and how to power your sensors here.
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  • Looking for a decibel sensor

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    skywatchS
    @secantscope I understand - It is a few years since I looked into this and then the only conclusion I could make was to take a meter and interface with usb. It would be more work and my needs case didn't warrant that at the time. I am sorry I could not be of more help in this, but it just seems to be the way things have been for a while. Maybe in the future things will change. As @nagelc suggested a lesser sensor could be used and you could calibrate it yourself. Seems little other options really. (Now I said that you just wait for a killer posting with just the thing you want linked) !!! ;)
  • Serious hardware issues with GY-521 modules

    gy-521 mpu6050 gy521
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    S
    Thanks a lot for sharing your experience I had reached a similar conclusion I tried to put in the oven the modules that failed, but only a few were "fixed" I have already successfully used another type of modules mounted in China at a lower price than the individual components, and I assumed that they could reach that price because they manufactured millions of modules But in the case of the GY-521 it seems to be of very poor quality, it struck me that I did not find any comments on forums about these bad modules I am evaluating redoing my PCB to directly mount the original MPU6050 Thanks again for your help
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    mfalkviddM
    @Beeblebrox666 you can use them just like any other strip, with the limitation that not all leds can be controlled individually.
  • This topic is deleted!

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  • Laundry sensors

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    Nca78N
    @tbowmo said in Laundry sensors: Just need to make something durable so that the sensor isn't destroyed if someone decides to overfill the basket, and force the drawer in. You just need to put it recessed inside an enclosure, it doesn't need a very wide aperture. For using above the table except if you have a low ceiling it won't do the job properly, in theory it's up to 2m but with daylight I couldn't detect non-reflective things further than 1m. If you have a relatively dark room you can measure further but it must be dark with a very reflective surface to really reach the claimed 2m. There's a VL53L1X with twice the range that is more expensive (close to 10$ with shipping it seems) and that will likely use way more power. I've never tried it, but I think I will soon as I really want to buy one now :D
  • Ultrasonic MEMS Sensor

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  • NRF24 works better indoor at 2Mbps

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    @ashokgowtham No, there is no available parameters like RSSI in NRF24. I've just done repeating tests like opening/closing a switch with ack enable in the same conditions for the different throughputs. And after three weeks of use, i can confirm that I've no errors at all at 2Mbps. As i said this throughput improve transmissions with a lot of wifi interferences around.
  • Directivity of 5.8GHz Radar Sensor HFS-DC06H

    hfs-dc06h
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    electrikE
    Radar doesn't go through metal, so aluminium foil should already do the trick
  • Power decoupling capacitor caused high current consumption

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    L
    Switch to tantalum if you have space, much better for battery powered as a decoupling cap, low leakage. Choose a cap with voltage 3x to 4x of input voltage.
  • RS485 & ENC28J60 gateway

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    dzjrD
    I have now been running the gateway for more than half a year, and unfortunately the gateway runs regularly (about once every 2 weeks), so I am going to replace the gateway for a W5100 ethernet adapter. I used it in a second gateway, and this gateway is stable, I haven't had any crashes in about 4 months.
  • arduino mega nrf wiring

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    @ayo I have this problem too, I can't get the radio modules work, the modules are nRF24L01 and I have tested with two arduino nano and two Arduino mega2560, but there is no result. The transmitter and receiver can not contact each other.
  • DIN Rail LEGO

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    jeremushkaJ
    A really impressive project based with DIN interface. Do you also integrate in DIN format the system to put a mysensors controller as well such as a RPi , etc... ?
  • NRF24 init problem

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    raptorjrR
    @yveaux In my outdoor tempsensor everything was working for a while. And to avoid any problems with the initial setup I put a Nano on a breadboard with only the nrf24 connected. The first setup could have had some issues that I don’t know of, but strange that my test setup have the same problems? That should have avoided any hidden problems to test everything again in a new setup. And Arduino runs on 5V and nrf24 on 3.3V. Is there any other way to check the function of a nrf24? Maybe some other sketch that is not mysensor but able to verify the nrf24 works. I need to try to narrow down the problem because it seems strange that all 4 are broken.
  • Looking for "beginner" PCB for an Arduino Pro Mini paired with RFM95/96

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    D
    @sweetpants :+1: Thanks for the positive feedback.
  • Wearable IMU, coin-cell, BLE or other RF

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    mfalkviddM
    https://forum.mysensors.org/topic/9305/mysensors-smart-watch might be of interest
  • Is the 32-bit ATSAML10 the ATMEGA328P killer that we've been waiting for?

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    @neverdie ASR6501 M0 with sx1262
  • Anyone here tried frequency hopping or forward error correction?

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    NeverDieN
    IIrc, in the USA, the frequency hopping would make the 27dbm legal. Otherwise not. In answer to your question, the higher priced module above claims to do fec. Although I think it's normally done at the phy layer, which they aren't . Maybe if you turned off crc and did promiscuous Rx....
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  • SX1278

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  • 18650s

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