HardLabs

PicoPLC

antek-elektronik·PicoPLC·Hardware/CPU/PicoPLC.kicad_pcb

PicoPLC PCB layout, top view — open source Raspberry Pi board by antek-elektronik

About the PicoPLC PCB

PicoPLC is an open source Raspberry Pi PCB design by antek-elektronik, published on GitHub. It is a 2-layer board measuring 96 × 98 mm, with 91 components from 32 distinct parts.

Its main chip is the RaspberryPi_Pico_W, from the Raspberry Pi family. Other key parts include the LM2576T-5. By type, the board carries 47 resistors, 12 transistors, 9 diodes, 8 connectors, 6 capacitors and 4 relays.

From the project

Work in progress!

This is 'industriual' adaptation for raspberry pi pico 2W. This is a hobby project developed by me (AntekElektronik) with no plans for building it (yet).

This device features a 8 optotransistor 24V inputs, 4 10A 230V relay outputs and 4 transistor outputs latching to ground. The device is powered by 24V external power supply and has 24V -> 5V switching power regulator onboard (the rpi pico 2w takes care of regulating 3.3V).

Main components on the PicoPLC

LM2576T-5RaspberryPi_Pico_W

PicoPLC bill of materials (BOM)

91 components, 32 distinct parts.

QtyPartRefs
1
LM2576T-5
U1
1
RaspberryPi_Pico_W
A1
4
PZT2222A
Q1, Q2, Q3, Q4
4
BC847C
Q5, Q6, Q7, Q8
4
IRFZ44NS
Q12, Q13, Q14, Q15
1
Input cluster 0
J1
1
Input cluster 1
J2
1
Common terminals
J3
1
C0 terminal
J4
1
C1 terminal
J5
1
C2 terminal
J6
1
C3 terminal
J7
1
Conn_02x01
J8
4
SANYOU_SRD_Form_C
K1, K2, K3, K4
2
ACPL-244
OC1, OC2
1
SKL14-DIO
D1
1
1N5822
D2
1
Power LED
D3
1
System LED (Green)
D4
1
System LED (Red)
D5
Show 12 more
QtyPartRefs
4
1N4007
D6, D7, D8, D9
1
DRQ127-101-R
L1
1
100uF_50V
C1
1
1000uF_16V
C2
4
1n
C3, C4, C5, C6
1
220
R1
2
100
R2, R3
8
3.3k
R4, R5, R6, R7, R8, R9, R10, R11
16
500
R12, R13, R14, R15, R16, R17, R18, R19 +8
4
5k
R28, R29, R30, R31
4
1k
R49, R53, R57, R61
12
10k
R50, R51, R52, R54, R55, R56, R58, R59 +4

PicoPLC design files

The KiCad project lives in the antek-elektronik/PicoPLC repository on GitHub; these links point at the commit this page was built from.

PicoPLC: common questions

What microcontroller does the PicoPLC use?

The PicoPLC is built around the RaspberryPi_Pico_W, from the Raspberry Pi family.

How big is the PicoPLC PCB?

The PicoPLC measures 96 × 98 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the PicoPLC?

91 components, from 32 distinct parts. The full bill of materials is listed on this page.

Where can I download the PicoPLC design files?

From the antek-elektronik/PicoPLC repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the PicoPLC design in my own project?

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

Can I test firmware for the PicoPLC without the hardware?

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

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