HardLabs

Ctrl

M-o-a-T·moat-hardware·bms/ctrl/ctrl.kicad_pcb

Ctrl PCB layout, top view — open source RP2040/RP2350 board by M-o-a-T

About the Ctrl PCB

Ctrl is an open source RP2040/RP2350 PCB design by M-o-a-T, published on GitHub. It is a 2-layer board measuring 67 × 65 mm, with 55 components from 43 distinct parts.

Its main chip is the Pico, from the RP2040/RP2350 family. Other key parts include the STH05_5V, STH05_12, VOS618A, SN65HVD75DR and SN65HVD1050D. By type, the board carries 13 resistors, 11 connectors, 7 diodes, 7 capacitors, 6 ICs and 6 jumpers.

It belongs with the power & battery and iot & wireless designs in this gallery.

From the project

Schematics and files for MoaT IoT things

This directory contains schematics etc. pertaining to our BMS.

Instead of isoSPI or similar schemes that require specialized ICs, we use remote-powered digital isolators. This allows us to combine controllers as required.

All modules are connected in a loop. Communication can run both ways. Thus a single interrupted connection or wire will not hurt.

We always connect an OUT plug to an IN plug. Damage will result when two OUT sockets get connected. The same happens with two IN sockets.

Main components on the Ctrl

STH05_5VSTH05_12VOS618ASN65HVD75DRPicoSN65HVD1050D

Ctrl bill of materials (BOM)

55 components, 43 distinct parts.

QtyPartRefs
1
STH05_5V
U1
1
STH05_12
U2
1
VOS618A
U3
1
SN65HVD75DR
U4
1
Pico
U5
1
SN65HVD1050D
U6
2
DMN2058U-7
Q5, Q6
2
Conn_01x02_Female
J1, J8
1
ScrewTerminal
J3
1
Conn_01x06
J4
2
Conn_01x04
J5, J12
1
Conn_LEM_5
J6
1
Conn_01x02_Male
J7
1
Conn_01x03
J9
1
Conn_LEM_3
J10
1
Conn_01x02_Female
J11
1
Polyfuse 100V
F1
1
OptTermination
JP6
1
CANBUS Volt Select
JP7
2
24V
JP8, JP12
Show 23 more
QtyPartRefs
1
Bat12V
JP11
1
12V
JP13
2
S2B-PH-K(LF)(SN)
Conn_01x02_Male
RX1, TX1
1
D_TVS_70V
D1
1
D_Schottky
D3
1
D_Zener_3V3
D4
2
1N4148
D5, D6
1
LED_red
D8
1
LED_green
D9
2
CP_1µ_100V_0805
C1, C2
1
100nF
C4
3
CP_100n_50V_0603
C5, C6, C7
1
CP_10µ_16V_0603
C8
1
0805W8F2200T5E
R_220_0603
R1
1
R_2k2_0603
R2
1
0805W8F1200T5E
120R
R7
3
R_750k_0603
R8, R14, R15
1
R_36k_0603_1
R9
1
R_10k_0603
R10
2
R_1M_0603
R11, R13
1
R_120_0603
R12
1
R_560_0603
R16
1
R_510_0603
R17

Ctrl design files

The KiCad project lives in the M-o-a-T/moat-hardware repository on GitHub; these links point at the commit this page was built from.

Ctrl: common questions

What microcontroller does the Ctrl use?

The Ctrl is built around the Pico, from the RP2040/RP2350 family.

How big is the Ctrl PCB?

The Ctrl measures 67 × 65 mm and has 2 copper layers.

How many components are on the Ctrl?

55 components, from 43 distinct parts. The full bill of materials is listed on this page.

Where can I download the Ctrl design files?

From the M-o-a-T/moat-hardware repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Ctrl design in my own project?

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

Can I test firmware for the Ctrl without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug RP2040/RP2350 firmware against it before you order a PCB.

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