HardLabs

Smokehouse

ondrejh·smokehouse·hw/double_pt100_alt/double_pt100.kicad_pcb

Smokehouse PCB layout, top view — open source RP2040/RP2350 board by ondrejh

About the Smokehouse PCB

Smokehouse is an open source RP2040/RP2350 PCB design by ondrejh, published on GitHub. It is a 2-layer board measuring 88.9 × 45.7 mm, with 47 components from 16 distinct parts.

Its main chip is the RP2040-Zero-SideOnly, from the RP2040/RP2350 family. Other key parts include the WeMos_D1_mini, OLED_091_module, MAX31865_breakout and LM7805_TO220. By type, the board carries 22 resistors, 12 capacitors, 6 ICs, 3 diodes, 1 transistor and 1 connector.

From the project

The smoker thermometer

The IOT smokehouse thermometer using standard web server as the interface.

- [X] use device registration (unique id, key) - [X] add the second thermocoupler - [X] draw schematic - [X] design pcb - [ ] oversampling - [ ] assemble prototypes

- [X] limit data table length - [X] keep time distances between rows - [ ] consolidate folders - [ ] build better local webi - [ ] build better server webi

Smokehouse, from the project README
From the project README

Main components on the Smokehouse

WeMos_D1_miniOLED_091_moduleMAX31865_breakoutRP2040-Zero-SideOnlyLM7805_TO220

Smokehouse bill of materials (BOM)

47 components, 16 distinct parts.

QtyPartRefs
1
WeMos_D1_mini
U1
1
OLED_091_module
U2
2
MAX31865_breakout
U3, U4
1
RP2040-Zero-SideOnly
U5
1
LM7805_TO220
U6
1
BC817
Q1
1
Screw_Terminal_01x03
J1
1
Buzzer
BZ1
1
SW_Push
SW1
1
LED
D1
2
BAV70
D2, D3
12
100n
C1, C2, C3, C4, C5, C6, C7, C8 +4
6
10k
R1, R10, R11, R14, R15, R23
8
100
R2, R3, R4, R5, R6, R7, R8, R9
7
330
R12, R13, R17, R18, R19, R21, R22
1
1k0
R16

Smokehouse design files

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

Smokehouse: common questions

What microcontroller does the Smokehouse use?

The Smokehouse is built around the RP2040-Zero-SideOnly, from the RP2040/RP2350 family.

How big is the Smokehouse PCB?

The Smokehouse measures 88.9 × 45.7 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Smokehouse?

47 components, from 16 distinct parts. The full bill of materials is listed on this page.

Where can I download the Smokehouse design files?

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

Can I use the Smokehouse design in my own project?

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

Can I test firmware for the Smokehouse 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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