Başlatılan Sample time for a heating loop with a known outdoor-temperature disturbance, and why not close it in the cloud

Mix of coursework and my internship, so I'd like the why as well as the what. A district heating substation: a PI loop drives…

1 gün 8 saat önce

Yanıtlanan ESP32-WROOM vs WROVER vs MINI: what do the module names mean and which do I buy?

WROVER has extra PSRAM on the module, WROOM doesn't. For a weather station you won't need PSRAM.

2 hafta 3 gün önce

Yanıtlanan Freezer at -12.5 C shows up as 65411 after going through my Modbus slave

Had the exact same thing in a lab last term with a fridge logger. Modbus registers are just 16 bits, they don't know about…

1 ay önce

Yanıtlanan LoRaWAN neden mesh değil? Çelik bir deponun arkasındaki dört sensör hiç bağlanamıyor

I did a module on this last term, and then spent a summer placing gateways at a dairy, so here goes. Mesh works at…

1 ay önce

Yanıtlanan 2.1.1: örnek bir veri kaynağı, pano ayarları ve pano paketleri

The sample source is perfect timing for me. My sensors for my final year project arrive in two weeks and I have to demo…

1 ay önce

Yanıtlanan Are U.FL and IPEX pigtails the same plug or not?

Both of them are partly right. U.FL is Hirose's name. IPEX makes a family called MHF, and the original MHF (sometimes MHF1 or MHF…

1 ay önce

Yanıtlanan Night-time bed-exit alert for a care home: which sensor, and how do I only alert between 22:00 and 06:00?

Built it with load cells (two per bed, HX711, ESP32) and the Rules card. Test last night with my supervisor lying on a spare…

1 ay 1 hafta önce

Yanıtlanan Night-time bed-exit alert for a care home: which sensor, and how do I only alert between 22:00 and 06:00?

One carer at night, walking around, phone in pocket. There's a PC at the nurse station but nobody sits at it at night.

1 ay 1 hafta önce