HardLabs

Thermostat pico

kelvie·kicads·thermostat-pico/thermostat-pico.kicad_pcb

Thermostat pico PCB layout, top view — open source RP2040/RP2350 board by kelvie

About the Thermostat pico PCB

Thermostat pico is an open source RP2040/RP2350 PCB design by kelvie, published on GitHub under the Apache-2.0 license. It is a 2-layer board measuring 50 × 36 mm, with 44 components from 27 distinct parts.

Its main chip is the ESP32-PICO-D4, from the RP2040/RP2350 family. Other key parts include the LY68L6400SLIT, TPS5430DDA and LM324DT. By type, the board carries 15 resistors, 11 capacitors, 5 ICs, 3 connectors, 3 diodes and 2 inductors.

From the project

Random kicad experiments

Main components on the Thermostat pico

LY68L6400SLITESP32-PICO-D4TPS5430DDALM324DT

Thermostat pico bill of materials (BOM)

44 components, 27 distinct parts.

QtyPartRefs
1
LY68L6400SLIT
U1
1
ESP32-PICO-D4
U2
2
TPS5430DDA
U4, U5
1
LM324DT
U6
1
VAC IN
J1
1
Conn_01x06
J2
1
UART
J3
1
Antenna_Shield
AE1
3
ToolingHole
H3, H4, H5
1
BOOT
JP1
1
MB10S
D1
2
SS34
D2, D3
2
22uH
L1, L2
2
10uF/50V
C1, C2
3
0.1uF
C3, C7, C11
1
1uF/5V
C4
3
0.01uF
C5, C6, C10
2
470uF/6.3V
C8, C9
2
33k
R1, R12
2
68k
R2, R13
Show 7 more
QtyPartRefs
2
18k
R3, R14
2
2k
R4, R15
3
10k
R5, R6, R11
1
1.1k
R7
1
5.6k
R8
1
33
R9
1
270
R10

Thermostat pico design files

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

Thermostat pico: common questions

What microcontroller does the Thermostat pico use?

The Thermostat pico is built around the ESP32-PICO-D4, from the RP2040/RP2350 family.

How big is the Thermostat pico PCB?

The Thermostat pico measures 50 × 36 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Thermostat pico?

44 components, from 27 distinct parts. The full bill of materials is listed on this page.

Where can I download the Thermostat pico design files?

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

Can I use the Thermostat pico design in my own project?

Yes, under the terms of its Apache-2.0 license, which kelvie chose for the repository.

Can I test firmware for the Thermostat pico 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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