티스토리 뷰

Isolated(insulated) voltage and current monitor both locally and remotely

Overview

Item Information Remarks
Connectors CN20 : I2C with 3.3V
CN31 : I2C with 5V
CN11 : 6.8V
CN21 : Input to GPIO7
CN26 : Input to ADC0
CN22 : Isolated output by GPIO3
CN23 : VIN output by GPIO4
CN24 : 5V output by GPIO5
CN25 : 3.3V output by GPIO6
 
Digital IN GPIO7 : CN21  
Analog IN ADC0 : CN26  
Digital OUT GPIO2 : to LD21
GPIO3 : to CN22
GPIO4 : to CN23
GPIO5 : to CN24
GPIO6 : to CN25
 
Digital Control None  
Variable#1
(CN31 only)
R11 and R19 : 0 ohm for 5.0VDC U11(AP63205)
U18(KIA7805)
Variable#2
(with CN11)
R11 : 49.9k ohm/F
R12 : 6.8k ohm/F
R19 : OPEN
U11(AP63200)
     
     

 

PCB Layout

Schematic(NoValue)

 
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