U2
SDA
Current
ADC_BUTTON
SCK
ADC_BUTTON
RESET
MOSI
Current
RESET
MISO
RESET
MOSI
SCL
SCK
SDA
MISO
SCL
R1
Resistance
0 Ω
+5V
R8
Resistance
10kΩ
C7
Capacitance
100nF
+5V
C8
Capacitance
1nF
+5V
+5V
+5V
R2
Resistance
0 Ω
+5V
+5V
R5
Resistance
10kΩ
+5V
+5V
R7
Resistance
10kΩ
+5V
R3
Resistance
4.7kΩ
R6
Resistance
10kΩ
+5V
+5V
R4
Resistance
4.7kΩ
C1
Capacitance
47uF
C4
Capacitance
47uF
J1
OK
U1
C2
Capacitance
0.1uF
MENU
C3
Capacitance
0.1uF
J2
NEXT
RST
OLED1
PS1

Energy Meter Reference Design