Electronic key to Microcontroler MONOZONE

This key is derived from the IperKEY, in fact it has the same typology of schematic, but with a much smaller printed circuit.

Schematic

monozona_sch1.pdf

The first page has like differences from the IperKEY only the lack of rele driver and the smaller DIP-SWITCH

monozona_sch2.pdf

In this page you can see the likenesses with IperKEY, unless for the management of a single RELE and the lack of the LED of partiality can be noticed ZONES towards the key hole

COMPONENT LIST

Item	Quantity	Reference	Part
1	13	C1,C2,C3,C4,C5,C8,C9,C10,C11,C14,C15,C16,C17	10NF
2	2	C6,C7	15PF
3	1	C12	100UF
4	1	C13	1UF
5	1	C18	100PF
6	1	DL1	LED
7	1	DP1	SW DIP-4
8	6	D1,D2,D3,D4,D6,D7	1N4148
9	1	D5	1N4001
10	1	EF1	EMI
11	1	IC1	LM78L05
12	1	IC2	LM7805
13	2	JP1,JP4	HEADER 3
14	1	JP2	HEADER 2
15	1	JP3	HEADER 5
16	1	K1	TRK12
17	1	P1	CON DB9
18	4	Q1,Q2,Q4,Q6	BC547
19	2	Q3,Q5	BC557
20	3	R1,R10,R27	2K2
21	2	R2,R15	4K7
22	9	R3,R5,R6,R7,R13,R14,R20,R21,R28	10K
23	5	R4,R11,R23,R24,R26	1K
24	2	R8,R9	470
25	2	R12,R25	18
26	1	R16	1K2
27	1	R17	1M
28	1	R18	22K
29	2	R19,R22	100
30	1	S1	SWITCH
31	4	TP1,TP2,TP3,TP4	T
32	1	U1	PIC16C57
33	1	U2	4051
34	1	U3	MAX232
35	1	U4	LM339
36	1	U5	24C01
37	1	Y1	4MHZ

PCB

There are 2 versions of the Printed circuit. One with the same circuit of the IperKEY 4 zones, but without to mount the rele and another in a smaller format (70*70)mm realized in mixed technology, smd + traditional

INSTRUCTIONS

Download the instructions in PDF -->monozona_instr.pdf