hi guys I need to establish rf communication between two devices that are battery operated. So I am thinking of using esp32 as a controller and disable it wifi. Also, I want to use hc 12 for RF communication. So I want to know if this setup is OK or will it create problems. Also, can hc12 be used as low power since the device is battery operated.
I appreciate your feedback.
Why use an ESP32 if you're going to disable the Wifi and try to use it as a low-power device? There are other microcontrollers that would be much better suited to that.
When idle the current draw of the HC12 can go as low as about 80uA.
So this means that hc12 is a good choice. Also, hc12 works on 433 mhz frequency. So can I be able to use it in France. It does lie in ISM band. Right?
Workaholic:
So this means that hc12 is a good choice. Also, hc12 works on 433 mhz frequency. So can I be able to use it in France. It does lie in ISM band. Right?
Its in an ISM band yes, but ISM bands are not Worldwide allocations, and there are variations by country.
However 434Mhz or thereabouts is an ISM band that is permitted in most of Europe, you should check the specific details for France though.
Why use an ESP32 if you're going to disable the Wifi and try to use it as a low-power device? There are other microcontrollers that would be much better suited to that.
Because I have esp32 available and it is providing me 100uA in deep sleep mode, so why should I use a different one. I am getting the required functionality being low power.