Schematic of LoRa temperature sensor Reference Design
U1
C3
Capacitance
15nF
J3
U4
C2
Capacitance
10uF
C4
Capacitance
1uF
C8
Capacitance
22pF
C7
Capacitance
22pF
C1
Capacitance
0.1uF
NTC1
Resistance
10kΩ
U5
End of Life
C5
Capacitance
0.1uF
R2
Resistance
80kΩ
R6
Resistance
27 Ω
R3
Resistance
1kΩ
X1
Frequency
12MHz
J2
R4
Resistance
1kΩ
R7
Resistance
5.1KΩ
LED2
C6
Capacitance
0.1uF
R5
Resistance
27 Ω
R1
Resistance
28kΩ
LED1
U3
U2