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

As far as I know Espressif has never officially said what WROOM stands for, so don't trust the three answers you found. In practice…

hace 2 semanas

Respondidos ¿ESP8266 como broker MQTT local para que los sensores sigan funcionando cuando se cae internet?

Personally I wouldn't put the one piece that must stay up on the weakest chip in the building. But curious what others did.

hace 2 semanas, 4 días

Respondidos Total beginner from New Zealand, workshop sensors

Another Kiwi here. Cable already run to the workshop is a good start, plenty of people would love that. Buy two of whatever sensor…

hace 4 semanas

Respondidos Veinte sondas DS18B20 en una sola Pi: caídas más allá de ocho sensores y cómo nombrar las claves

One small thing while you're in there: put the device token in a file only your service user can read, not in the script.…

hace 4 semanas, 1 día

Respondidos Rastreador de remolques en un NodeMCU: la tarjeta de mapa indica que no hay filas con coordenadas válidas

Those are strings, and two decimals. Is that on purpose?

hace 1 mes, 1 semana

Respondidos Sensors on campus lamp posts with no wiring, can we power them wirelessly?

Wireless power works over centimetres (phone chargers). Over metres you get microwatts and terrible efficiency. Your owner saw a demo.

hace 1 mes, 1 semana

Respondidos Encender y apagar desde Hermetry un split de aire acondicionado de una sala de servidores con un relé de enchufe de 16 A

Separate point from the HVAC side. That plug sits in your server room and can switch a load there, so treat it like any…

hace 1 mes, 3 semanas

Respondidos Detector de timbre del interfono con ESP8266: ¿cómo recibo un aviso en el móvil?

The mobile app brings notifications to phones, for whoever installs it. For the rest it's the bell in the browser, e-mail, chat apps an…

hace 2 meses