Simple, cheap, very small size Lora node with PCB antenna on 868 MHz. Compatible with FT232RL FTDI USB To TTL Serial Converter. Design includes lot of free GPIO's, push button and LED.
It's necessary to burn bootloader with ISP before RFM95W module is soldered.
Schematic S11 Measurement Sleep current measurementBased on: http://www.ti.com/lit/an/swra228c/swra228c.pdf
#RFM95W, #ATMEGA328P, #arduino, #lora, #pcb antenna, #inverted f antenna