Version 4
SHEET 1 880 680
WIRE -48 416 -128 416
WIRE 48 416 32 416
WIRE 112 512 112 416
WIRE 128 416 112 416
WIRE 192 512 192 464
WIRE 192 576 192 512
WIRE 320 368 192 368
WIRE 416 288 192 288
WIRE 416 400 416 288
WIRE 416 512 192 512
WIRE 416 512 416 480
FLAG 192 576 0
FLAG -128 416 TXD
IOPIN -128 416 In
FLAG 320 368 nRESET
IOPIN 320 368 Out
SYMBOL diode 48 432 R270
WINDOW 0 32 32 VTop 0
WINDOW 3 0 32 VBottom 0
SYMATTR InstName D3
SYMBOL res 48 400 R90
WINDOW 0 0 56 VBottom 0
WINDOW 3 32 56 VTop 0
SYMATTR InstName R5
SYMATTR Value 10000
SYMBOL res 208 496 R90
WINDOW 0 0 56 VBottom 0
WINDOW 3 32 56 VTop 0
SYMATTR InstName R1
SYMATTR Value 33000
SYMBOL res 176 384 M180
WINDOW 0 36 76 Left 0
WINDOW 3 36 40 Left 0
SYMATTR InstName R3
SYMATTR Value 10000
SYMBOL npn 128 368 R0
SYMATTR InstName T1
SYMBOL voltage 416 384 R0
WINDOW 123 0 0 Left 0
WINDOW 39 0 0 Left 0
SYMATTR InstName V1
SYMATTR Value 5
TEXT -176 590 Left 0 !.tran 5