Ouverts 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…

il y a 1 jour et 8 heures

Réponses à 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.

il y a 2 semaines et 3 jours

Réponses à 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…

il y a 1 mois

Réponses à Pourquoi LoRaWAN n'est-il pas en maillage ? Quatre capteurs derrière un entrepôt en acier ne se connectent jamais

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

il y a 1 mois

Réponses à 2.1.1 : une source de données d'exemple, les paramètres de tableau et les paquets de tableaux

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

il y a 1 mois

Réponses à 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…

il y a 1 mois

Réponses à 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…

il y a 1 mois et 1 semaine

Réponses à 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.

il y a 1 mois et 1 semaine