LoRa Remote Alarm Transmitter
Another one of my LoRa device projects, been having a lot of those lately:) This one has the need to have an onboard relay, as well as inputs for sensors on a single PCB. I also have the requirement that this unit has to be powered from 12v. I made use of on-PCB heatsinks for the two voltage regulators, as well as used my reliable N-MOS based level converter circuit to convert signals to and from the RA-02 module and the Atmega 328/168/88/8a MCU. Full optical isolation ( Not Galvanic ) is provided on the relay driver as well. Well manufactured, Looks great, thank you
Apr 08,2022
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