01-07-2023, 07:21 AM
(01-07-2023, 01:38 AM)admin Wrote: i think you maninly want to connect with sensor?
i will save your idea, maybe after our new year holiday can make it. how about size or which case is better?
not all ESP32's GPIO pin can connect with DS18B20, some for OUTPUT , some for INPUT, some for OUTPUT/INPUT.
Yes, a super reliable and easy to use board for ds18b20 sensors. Input only. The output would be ip based, using standard mqtt or http requests.
I see a few business advantages:
- super easy and reliable introduction to KC868-A* products:
- super easy to physically connect the sensors
- will work regardless of the temperature sensor network topology if connecting only one sensor per terminal block.
- leverages many people's ip network knowledge. They like home autonation, but so many existing options are proprietary.
- trust:
- Trying a sensor input board from a relatively young Chinese firm is a small and easy step of trust. AC output is bigger and more subject to regulations. People will come back for more after they buy this product because it is a guaranteed small success. It simply works.
- Many people deeply trust the ESPHome project. I do. Many people around me do. A KC868-A8TI can leverage that trust into you sellng more product.
- expandable. Those who know what they are doing can still connect multiple temperature sensors to one lead. This will be less clean and introduce more potential for errors. If the price is right, many people who need more inputs will rather buy more boards. Beginners as well as professionals. No need to think or fiddle.
In terms of form factor and mounting, I see two possibilities. First, clearly a simple din rail mountable version is needed. not wider than KC868-AI. This would be a logical step for a first version. A second, third and fourth iteration would replace the screw terminal blocks with 8, 16 or 24 rj45 connectors and come in a 1U rack mountable form.
As a side note, another, slightly more difficult to develop similar product idea would be:
- esp32
- ethernet with PoE 802.3at or 802.3af
- one builtin bme280 or similar temperature/humidity/pressure sensor
- super compact size so it could fit in a standard EU wall box
- with or without case