Standalone version - classic parts
Component | Value / type | Pieces | Notice
U1 | ATMEGA8-16 | 1 | DIL28 case
U2 | 78L05 | 1 | stabilizer 5 V
T1 | BC547 | 1 | or similar NPN
T2 | BC557 | 1 | or similar PNP
XT1 | 20 MHz | 1 | crystal
D1,D2,D4 | 1N4148 | 1 | -
D3 | BAT48 | 1 | -
C1,C2 | 15 pF | 2 | ceramic
C3 | 10u/16 | 1 | elektrolytic or tantalum
C4 | 100u/16 | 1 | elektrolytic or tantalum
C5-C8 | 100n | 4 | ceramic
R1-R5 | 4K7 | 5 | miniature e.g. R0207
R6,R10,R11 | 10K | 1 | miniature e.g. R0207
R7 | 1K0 | 1 | miniature e.g. R0207
R8 | 82R | 1 | miniature e.g. R0207
R9 | 330R | 1 | miniature e.g. R0207
CN1 | CANON 9 MALE | 1 | for the PCB
CN2 | NAZ 2.5 | 1 | Power connector 2.5 for PCB
CN3 | CINCH FEMALE | 1 | wall mount
CN4 | Mini DIN6 FEMALE | 1 | (PS2) for PCB
J1 | JUMPER | 3x2 | Jumpers and pins
Built-in version - SMD components
Component | Value / type | Pieces | Notice
U1 | ATMEGA8-16 | 1 | TQFP32 case
XT1 | 20 MHz | 1 | crystal
C1,C2 | 15 pF | 2 | ceramic 0805
C3,C4 | 100 nF | 2 | ceramic 0805
C5 | 10u/10 | 1 | tantalum SMD
R1,R2 | do 47R | 2 | 1206 (maybe short-circuit)
R3 | 1K0 | 1 | 0805
R4 | 82R | 1 | 0805
R5 | 100R + 220R | 1+1 | 1206
R6,R7 | 10K | 2 | 1206 a 0805
R8 | 4K7 | 1 | 1206
J1 | JUMPER | 3x2 | Jumpers and pins
- | I/O pins | - | you can choose