HardLabs

Fireplace controller

nsillik·fireplace-controller·spark/spark.kicad_pcb

Fireplace controller PCB layout, top view — open source ESP32 board by nsillik

About the Fireplace controller PCB

Fireplace controller is an open source ESP32 PCB design by nsillik, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 48.8 × 49.3 mm, with 37 components from 26 distinct parts.

Its main chip is the ESP32-WROOM-32, from the ESP32 family. Other key parts include the AMS1117-3.3 and CP2102N-Axx-xQFN28. By type, the board carries 11 resistors, 8 capacitors, 7 diodes, 3 ICs, 3 transistors and 2 connectors.

It belongs with the iot & wireless and dev boards & breakouts designs in this gallery.

From the project

In 2022 we bought an old house. A big ol' victorian built in 1891 which had been converted to a triplex. Unfortunately during this conversion they ripped out all 8 or so original fireplaces an bricked them up. Lame. So, we though we'd put in some gas fireplaces. We did! Then we n

In 2022 we bought an old house. A big ol' victorian built in 1891 which had been converted to a triplex. Unfortunately during this conversion they ripped out all 8 or so original fireplaces an bricked them up. Lame. So, we though we'd put in some gas fireplaces. We did! Then we needed a way to control them, so we bought this amazing remote control system for $500 each:

Fireplace controller, from the project README
From the project README

Main components on the Fireplace controller

AMS1117-3.3CP2102N-Axx-xQFN28ESP32-WROOM-32

Fireplace controller bill of materials (BOM)

37 components, 26 distinct parts.

QtyPartRefs
1
AMS1117-3.3
U1
1
CP2102N-Axx-xQFN28
U2
1
ESP32-WROOM-32
U3
2
SS8050-G
Q1, Q2
1
2N3904
Q3
1
USB_B_Mini
J1
1
Screw_Terminal_01x03
J2
1
SRD-03VDC-SL-C
K1
2
SW_Push
SW1/BOOT1, SW2/EN1
2
RED LED
D1, D7
3
ESD5Zxx
D2-4, D3, D4
1
D
D5
1
1N4001
D6
3
22uF/10V(20%)
C1, C3, C8
2
0.1uF/50V(10%)
C2, C7
1
4.7uF/6.3V(10%)
C4
2
0.1uF/50V(10%)(NC)
C5, C6
1
2K (5%)
R1
2
R0 (5%)
R2, R3
2
10K(5%)
R4, R5
Show 6 more
QtyPartRefs
1
22.1K(5%)
R6
1
47.5K(5%)
R7
1
2K(5%)
R8
1
10K(5%)(NC)
R9
1
1K(5%)
R10
1
2K(5%)
R11

Fireplace controller design files

The KiCad project lives in the nsillik/fireplace-controller repository on GitHub; these links point at the commit this page was built from.

Fireplace controller: common questions

What microcontroller does the Fireplace controller use?

The Fireplace controller is built around the ESP32-WROOM-32, from the ESP32 family.

How big is the Fireplace controller PCB?

The Fireplace controller measures 48.8 × 49.3 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Fireplace controller?

37 components, from 26 distinct parts. The full bill of materials is listed on this page.

Where can I download the Fireplace controller design files?

From the nsillik/fireplace-controller repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Fireplace controller design in my own project?

Yes, under the terms of its GPL-3.0 license, which nsillik chose for the repository.

Can I test firmware for the Fireplace controller 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.

Similar boards