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My first board (Arduino Pro Mini Shield for RFM69)

user2684 Contest Winner last edited by

I'm very new to Kicad and PCB design so I'd be very grateful if anybody has any thought, comment, suggestion, etc. to share regarding my first board. I'm sharing the entire kicad project at https://www.openhardware.io/view/605/Arduino-Pro-Mini-Shield-for-RFM69.
Even something such as best practice/naming convention, etc. which may sound trivial for an experienced designer could be helpful for a beginner like me
Thanks!
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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.
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 !
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.
"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.
Best time of year to buy higher quality small project solar panels?
Hardware • • NeverDie

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It probably has to do with fewer people buying them once summer ends, so companies might lower prices to clear out stock before winter.

My first board (Arduino Pro Mini Shield for RFM69)

Suggested Topics

Over the air updates
General Discussion • • ToSa

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

Sleep mode for bmp280
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Which one should i choose? PIR or microwave sensor
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My first board (Arduino Pro Mini Shield for RFM69)

Suggested Topics

Over the air updates General Discussion • • ToSa

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

Sleep mode for bmp280 Hardware • • fishermans

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

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

Best time of year to buy higher quality small project solar panels? Hardware • • NeverDie

54Online

11.4kUsers

11.1kTopics

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Over the air updates
General Discussion • • ToSa

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

Sleep mode for bmp280
Hardware • • fishermans

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

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

Best time of year to buy higher quality small project solar panels?
Hardware • • NeverDie

54
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11.4k
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112.7k
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