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Plc-4u a

semicontinuity·embedded·target/plc-4u-a/hardware/plc-4u-a/plc-4u-a.kicad_pcb

Plc-4u a PCB layout, top view — open source AVR/Arduino board by semicontinuity

About the Plc-4u a PCB

Plc-4u a is an open source AVR/Arduino PCB design by semicontinuity, published on GitHub. It is a 2-layer board measuring 64 × 84 mm, with 215 components from 68 distinct parts.

Its main chip is the ATmega16-16P, from the AVR/Arduino family. Other key parts include the PC817 and MAX485E. By type, the board carries 88 connectors, 67 resistors, 23 ICs, 13 diodes, 10 transistors and 6 switches.

It belongs with the robotics & motion and sensors designs in this gallery.

From the project

Embedded projects

Embedded projects. ================================================================================

Projects for AVR microcontrollers. -------------------------------------------------------------------------------- - Primitive alarm - Primitive terminal - Voltage relay - Mood lamp - firmware under development - Primitive motion sensor controller, that works in pair with primitive alarm - Servo controller - unfinished, no firmware yet - LED dimmer, controlled via CAN bus - CAN bus router - firmware under development - Roller shutter controller, controlled via CAN bus - Humidity meter

Main components on the Plc-4u a

ATmega16-16PPC817MAX485E

Plc-4u a bill of materials (BOM)

215 components, 68 distinct parts.

QtyPartRefs
1
ATmega16-16P
U1
21
PC817
U2, U3, U4, U5, U6, U7, U8, U9 +13
1
MAX485E
U22
6
IRF4905
Q1, Q2, Q3, Q4, Q5, Q6
4
MMBT3904
Q7, Q8, Q9, Q10
1
Crystal
Y1
5
Screw_Terminal_01x02
J1, J2, J3, J4, J5
1
V_ST_HWS
J6
1
V_ST_CWS
J7
1
W_CT_HWS
J8
1
W_CT_CWS
J9
1
AUX_INS
J10
2
X Leds Btns
J11, J18
4
S3 S5 LEDs
J12, J23, J25, J48
2
Valve control in
J13, J22
4
Leak sensors
J14, J21, J39, J40
2
I2C
J15, J16
2
TA_C
J17, J41
2
Valve leds
J19, J20
2
S4 S6 LEDs
J24, J26
Show 48 more
QtyPartRefs
2
S3BTN
J27, J31
2
S4BTN
J28, J32
2
S5BTN
J29, J33
2
S6BTN
J30, J34
2
PWR_OUT
J35, J38
1
Sensors AB
J36
1
Sensors CD
J37
2
TB_C
J42, J45
2
TC_C
J43, J46
2
TD_C
J44, J47
1
S1 S2 LEDs
J49
1
S1 S2 BTNS
J50
2
X0
J51, J53
1
U8 IN
J52
1
X9 IN
J54
1
AVR-ISP-10
J55
1
PA0
J56
2
U8 OUT
J57, J59
5
NC
J58, J79, J80, J81, J82
2
GND
J60, J61
2
VCC
J62, J63
1
SIM800
J64
1
RES_IN
J65
1
SELF_PWR_IN
J66
2
VDD VSS
J67, J68
4
VDD
J69, J70, J77, J78
1
RESERVED_IN
J71
7
VSS
J72, J73, J74, J75, J76, J87, J88
2
RXD
J83, J84
2
TXD
J85, J86
2
C
22pF1, 22pF2
1
Buzzer
BZ1
1
Dir Control
JP1
6
MOMENTARY-SWITCH-SPST-LED-PTH-12MM
S1, S2, S3, S4, S5, S6
4
LED_Dual_KAK
D1, D2, D3, D4
6
D
D5, D6, D7, D8, D9, D10
2
LED
D11, D12
1
PESD2CAN
D13
2
C
C1, C3
1
C_Polarized
C2
6
8.2k
R1, R5, R8, R11, R29, R40
6
5.1k
R2, R6, R9, R12, R41, R42
16
820
R3, R4, R7, R10, R13, R14, R15, R27 +8
14
R
R16, R21, R22, R23, R24, R25, R26, R30 +6
15
1k
R17, R18, R19, R20, R36, R37, R43, R44 +7
7
R
R51, R52, R53, R54, R62, R64, R65
1
R
R63
2
10
R66, R67

Plc-4u a design files

The KiCad project lives in the semicontinuity/embedded repository on GitHub; these links point at the commit this page was built from.

Plc-4u a: common questions

What microcontroller does the Plc-4u a use?

The Plc-4u a is built around the ATmega16-16P, from the AVR/Arduino family.

How big is the Plc-4u a PCB?

The Plc-4u a measures 64 × 84 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Plc-4u a?

215 components, from 68 distinct parts. The full bill of materials is listed on this page.

Where can I download the Plc-4u a design files?

From the semicontinuity/embedded repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Plc-4u a design in my own project?

The repository has no license, so all rights stay with semicontinuity. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Plc-4u a without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug AVR/Arduino firmware against it before you order a PCB.

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