After playing around with the first Prototype of LoPSy (LoRa Paging System ;-) ) and the first range test went well, I wanted to start with a new hardware revision.
The first hardware prototype contained a Nokia display, AI-Thinker Ra-02 433 MHz LoRa module and an ATmega328 µC.
For the new hardware revision I would like to replace the mentioned components and add few more functions.
Some requirements:
- SMPS instead of linear regulator
- 1-cell LiPo charger IC
- ATSAMD21 microcontroller (compatibility with Arduino Zero MKR (and Adafruit Feather?))
- Get rid of the Nokia Display
- uSD-card
- tiny pager motor
- buzzer
- to be defined...
Discussions
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