Block Diagram

I2C
(100KHz)
[1]
LoRa & MCU module
(32MHz TCXO)
(32.768KHz XTAL)
Antenna
(Fc = 890MHz)
(BW = 40MHz)
Status indicator LED
[Red]
1.8 to 3.2V
Batteries
(2 x AA 1.5V)
EEPROM
VBAT
VBAT Measurement
Project:
Desksense
Client:
Capgemini
Author:
Tom Klijn
Project number:
PXXXXXX
Revision:
V01
Date:
11-06-2020
Block diagram: Desksense
[1] Transmit center frequency is variant dependent: Center frequency is 868MHz for Europe and 915MHz for USA
Motion sensor