C2
Capacitance
100nF
C17
Capacitance
10uF
C24
Capacitance
10uF
C18
Capacitance
100nF
C1
Capacitance
100nF
C10
Capacitance
100nF
C26
Capacitance
100nF
C19
Capacitance
68pF
C15
Capacitance
10uF
C9
Capacitance
100nF
C21
Capacitance
100nF
C16
Capacitance
4u7 F
C25
Capacitance
100nF
C11
Capacitance
1uF
C23
Capacitance
100nF
D1
J5
J2
SOLAR POWER INTERFACE
R14
Resistance
6k8 Ω
R8
Resistance
15kΩ
R13
Resistance
68kΩ
POWER CIRCUIT
R11
Resistance
1k5 Ω
Q1 Disconnects SOLAR input when both SOLAR and USB are connected. NOTE: This is a depletion type mosfet
MICROCONTROLLER
R16
Resistance
50 Ω
D4
Color
Red
C11 Should be close to pin 45 of RP2040
Iset = 6800 / Rset = 1A
R17
Resistance
50 Ω
R7
Resistance
2kΩ
I_ch = (Vset / Rset) * 900 = 900mA
USB INTERFACE
D5
Color
Green
U3
Q1
U1
U5
L2
Inductance
2u2 H
U4
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