HardLabs

CPDEL

samo4·CPDEL·hardware/UniversalControlPanel.kicad_pcb

CPDEL PCB layout, top view — open source ESP32 board by samo4

About the CPDEL PCB

CPDEL is an open source ESP32 PCB design by samo4, published on GitHub. It is a 2-layer board measuring 70 × 55 mm, with 56 components from 31 distinct parts.

Its main chip is the ESP32-S2-WROOM-I, from the ESP32 family. Other key parts include the PSM712-LF-T7, TSR_1-2433, MAX14783ExS, L78L05_SOT89 and SN65HVD230. By type, the board carries 22 resistors, 10 capacitors, 7 connectors, 6 ICs, 4 jumpers and 3 transistors.

It belongs with the displays & leds designs in this gallery.

From the project

ESP32S2 with Display and RS485 as control for SOUSIM DC Load module

- 2 channels: 200V, 10A - 4 modes (CC, CV, CR, CP) + battery discharge mode - Control: - 2.8" SPI display with capacitive touch - telnet SCPI interface (port 5025) - REST SCPI interface (port 80) - responsive web interface (with sockets) - rudimentary charting - OTA updates with CI/CD integration - not-unreasonable level of test coverage - UDP logging for debugging

CPDEL, from the project README
From the project README

Main components on the CPDEL

PSM712-LF-T7TSR_1-2433MAX14783ExSL78L05_SOT89SN65HVD230ESP32-S2-WROOM-I

CPDEL bill of materials (BOM)

56 components, 31 distinct parts.

QtyPartRefs
1
PSM712-LF-T7
IC1
1
TSR_1-2433
U1
1
MAX14783ExS
U2
1
L78L05_SOT89
U3
1
SN65HVD230
U5
1
ESP32-S2-WROOM-I
U6
3
2N7002
Q1, Q2, Q3
1
Conn_01x09
J1
1
Conn_01x09
J2
1
Conn_01x40
J3
1
Conn_02x03_Odd_Even
J4
1
Conn_01x03
J5
1
Conn_01x02
J9
1
Conn_01x02
J10
4
Jumper_2_Bridged
JP1, JP2, JP3, JP4
1
SW_Push
SW1
1
19-217/BHC-ZL1M2RY/3T
LED_BLUE
D3
1
B5819W SL
D4
1
19-217/GHC-YR1S2/3T
LED_GREEN
D5
1
1u
C2
Show 11 more
QtyPartRefs
7
100n/16V
C3, C4, C7, C8, C9, C10, C11
2
10u
C5, C6
4
10k
R1, R2, R3, R11
4
75
R4, R5, R6, R7
2
120
R8, R12
2
8k2
R9, R21
2
15k
R10, R22
2
22
R13, R14
2
100k
R15, R16
2
5k6
R17, R18
2
75k
R19, R20

CPDEL design files

The KiCad project lives in the samo4/CPDEL repository on GitHub; these links point at the commit this page was built from.

CPDEL: common questions

What microcontroller does the CPDEL use?

The CPDEL is built around the ESP32-S2-WROOM-I, from the ESP32 family.

How big is the CPDEL PCB?

The CPDEL measures 70 × 55 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the CPDEL?

56 components, from 31 distinct parts. The full bill of materials is listed on this page.

Where can I download the CPDEL design files?

From the samo4/CPDEL repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the CPDEL design in my own project?

The repository has no license, so all rights stay with samo4. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the CPDEL without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP32 firmware against it before you order a PCB.

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