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Quadrocopter with NRF24L01? Yes :)

Frank Herrmann last edited by

Hello Friends,

get this one in a maillist from ITEAD

https://www.itead.cc/crazepony-mini-quadcopter.html
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hek Admin last edited by

Haha.. nice!
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martinhjelmare Plugin Developer last edited by

Automatically controlled drones as part of the security system, anyone?
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I would really like to get OTA working here as it's freezing outside and I have to go there to update the software in the greenhouse control system. So please, can we have a 'how to' step-by-step guide to OTA? Please? S.
Best VOC sensor for detecting a wide range of VOC's?
Hardware • • NeverDie

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@eiten I haven't yet made any progress on finding a good VOC sensor, but along the way I did find out something interesting regarding CO2: namely, if you sleep with your bedroom door closed at night, then the odds are good that the CO2 levels rise to surprisingly high and unhealthy levels. The better CO2 sensors are factory calibrated and never again need recalibration for the life of the sensor (usually around 10 years or so), because they are used in HVAC systems to control fresh air intake to guarantee indoor air quality. As a for instance, here is one such CO2 sensor: https://www.digikey.com/en/products/detail/senseair/006-0-0008/15790694 At around $50 for just the sensor element itself, it's not exactly cheap, but then again, I'd say it's worth it, because who wants to be burdened by remembering to calibrate their CO2 sensors? Ideally, I'd like to find a sensitive VOC sensor that also will never require calibration. Nearly all, and maybe all, of the off-the-shelf IAQ montoring stuff that you might buy for, say, $300 or less seems to require periodic calibration. For that reason, this might be one of those occasions where build is rather than buy.
Which one should i choose? PIR or microwave sensor
Hardware • • h01

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Supposedly PIR doesn't work through glass (e.g. if looking for motion through a window), whereas I presume a microwave sensor might still work.
New user has questions
Hardware • • Doggie

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I am new in this forum and I have a question regarding mysensors and iobroker. I did not work with mysensors up to now. Since some weeks I use iobroker installed on a raspberrypi. Now I want to integrate my 433 Mhz doorbell in iobroker. I know, that there is an adapter for mysensors in iobroker. My question is: Is it possible to get a notification in iobroker if someone is pressing the button on my doorbell? As I understood, I have to connect the receiver to an arduino nano and connect the arduino to my rasberrypi on which iobroker is running.
"Remote Irrigation with LoRaWAN: LM27313 Challenges and PCB Design"
Hardware • • wrendral

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@wrendral said in "Remote Irrigation with LoRaWAN: LM27313 Challenges and PCB Design": I will go with a Li-Po Battery type: 304048 3.7V 1200mAh Might work, but maybe the internal protection will trigger with the high current peaks. I'd suggest you plan a 0 Ohm, (2512/THT) resistor as R2 and then replace it with a 100Ohm/1Watt if the protection triggers.
Sleep mode for bmp280
Hardware • • fishermans

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Just wanted to say thanks for this, it is still relevant and useful six years later !

Quadrocopter with NRF24L01? Yes :)

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Best VOC sensor for detecting a wide range of VOC's?
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Quadrocopter with NRF24L01? Yes :)

Suggested Topics

Over the air updates General Discussion • • ToSa

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Which one should i choose? PIR or microwave sensor Hardware • • h01

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"Remote Irrigation with LoRaWAN: LM27313 Challenges and PCB Design" Hardware • • wrendral

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0Online

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112.7kPosts

Over the air updates
General Discussion • • ToSa

Best VOC sensor for detecting a wide range of VOC's?
Hardware • • NeverDie

Which one should i choose? PIR or microwave sensor
Hardware • • h01

New user has questions
Hardware • • Doggie

"Remote Irrigation with LoRaWAN: LM27313 Challenges and PCB Design"
Hardware • • wrendral

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Hardware • • fishermans

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