HardLabs

Thermometer CD Project

Wik19·Thermometer_CD_Project

Thermometer CD Project PCB layout, top view — open source RP2040/RP2350 board by Wik19

About the Thermometer CD Project PCB

Thermometer CD Project is an open source RP2040/RP2350 PCB design by Wik19, published on GitHub. It is a 2-layer board measuring 42.5 × 18.5 mm, with 39 components from 25 distinct parts.

Its main chip is the ESP32-PICO-D4, from the RP2040/RP2350 family. Other key parts include the MAX6675ISA+, CP2102N-A02-GQFN24, TPD4S012DRYR, OLED-disp and TPS63060. By type, the board carries 17 capacitors, 10 resistors, 6 ICs, 3 connectors, 2 inductors and 1 switch.

Main components on the Thermometer CD Project

MAX6675ISA+CP2102N-A02-GQFN24TPD4S012DRYRESP32-PICO-D4OLED-dispTPS63060

Thermometer CD Project bill of materials (BOM)

39 components, 25 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
MAX6675ISA+
mouser
IC1
1
CP2102N-A02-GQFN24
mouser
IC2
1
TPD4S012DRYR
mouser
IC3
1
ESP32-PICO-D4
mouser
U2
1
OLED-disp
mouser
U3
1
TPS63060
mouser
U4
1
SCREW_TERMINAL_01X02
Screw_Terminal_01x02
mouser
J1
1
S8421-45R
mouser
J2
1
UJ20-C-V-C-1-SMT-TR
mouser
J3
1
OS102011MS2QS1
mouser
S1
1
10U
10u
mouser
L1
1
1u
farnell
L2
7
100NF
100nF
mouser
C1, C2, C4, C5, C6, C13, C14
4
22U
22u
mouser
C7, C10, C11, C12
3
0.1U
0.1u
mouser
C8, C15, C18
1
10P
10p
mouser
C9
2
4.7U
4.7u
mouser
C16, C17
1
560K
560k
mouser
R1
1
100K
100k
mouser
R2
1
1M
mouser
R3
Show 5 more
QtyPartRefs
2
4K7
4k7
mouser
R4, R5
2
5.1K
5.1k
mouser
R6, R7
1
1k
mouser
R8
1
22.1K
22.1k
mouser
R9
1
47.5K
47.5k
mouser
R10

Thermometer CD Project design files

The KiCad project lives in the Wik19/Thermometer_CD_Project repository on GitHub; these links point at the commit this page was built from.

Thermometer CD Project: common questions

What microcontroller does the Thermometer CD Project use?

The Thermometer CD Project is built around the ESP32-PICO-D4, from the RP2040/RP2350 family.

How big is the Thermometer CD Project PCB?

The Thermometer CD Project measures 42.5 × 18.5 mm, has 2 copper layers and is 1.59 mm thick.

How many components are on the Thermometer CD Project?

39 components, from 25 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Thermometer CD Project design files?

From the Wik19/Thermometer_CD_Project repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the Thermometer CD Project design in my own project?

The repository has no license, so all rights stay with Wik19. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Thermometer CD Project 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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