Circuitrocks

<r>Deployed both, sharing data after 18 months.<br/>
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<B><s>[b]</s>18650 (recycled laptop cells):<e>[/b]</e></B> cheap (~PHP 80/cell from surplus), 2500mAh typical, lifespan in PH heat: 12-14 months before noticeable capacity loss. Cell-level failures common, need protection circuit. Voltage ...

<t>Field experience from deploying outdoor enclosures (sun-exposed, full PH conditions) for ~2 years now:<br/>
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PETG yellowed visibly after 8-10 months direct sun. Still functional, still rigid, just hindi maganda. ABS has held up much better, almost no visible UV degradation after 2 years on ...

<r>Sharing notes from running ~30 sensor nodes for clients over the past 2-3 years. Mix of indoor and outdoor (sheltered) installations.<br/>
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<B><s>[b]</s>Survived strongly:<e>[/b]</e></B>
<LIST><s>[list]</s>
<LI><s>[*]</s>DS18B20 (waterproof variant), soil temp probes, fish tanks. Mga 95 ...

<r>Designing a remote weather station for a client. ESP32 + BME280, transmits via WiFi every 15 mins, deep sleep in between. Power: 6V 2W solar panel, 18650 cell with TP4056 charger.<br/>
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My napkin math:
<LIST><s>[list]</s>
<LI><s>[*]</s>~150mA active for 30s every 15 mins</LI>
<LI><s>[*]</s ...

<t>Building 50 simple sensor display units para sa client. Just temp + humidity readout, maybe a status LED. Yung unit price impact between a 1602 LCD (mura) and a 0.96" OLED (mas presentable but pricier) is enormous at this volume.<br/>
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Field installation, indoor offices, no harsh environment ...

Working pro sa Makati, deploy ako ng sensor networks for clients (mostly facilities monitoring at environmental). Pragmatic mode lang ako lagi, what works, what's reliable, what costs less. Hindi ako sa research side. Hopefully my deployment war stories useful for some of you.