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ESP32-Simple-Thermostat

jrtaylor71·ESP32-Simple-Thermostat·ESP32-Simple-Thermostat-PCB/ESP32-Simple-Thermostat-PCB.kicad_pcb

ESP32-Simple-Thermostat PCB layout, top view — open source ESP32 board by jrtaylor71
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About the ESP32-Simple-Thermostat PCB

ESP32-Simple-Thermostat is an open source ESP32 PCB design by jrtaylor71, published on GitHub. It is a 2-layer board measuring 133 × 89.5 mm, with 40 components from 19 distinct parts.

Its main chip is the ESP32_DevKit_V1_DOIT_30GPIOs, from the ESP32 family. Other key parts include the DHT11 and LM2596S-5. By type, the board carries 8 diodes, 7 resistors, 6 transistors, 6 relays, 5 connectors and 4 capacitors.

It belongs with the iot & wireless, sensors and displays & leds designs in this gallery.

From the project

Simple ESP32 Thermostat with touch screen

A comprehensive, feature-rich thermostat system built on the ESP32 platform with professional PCB design. Perfect for DIY smart home automation with full Home Assistant integration.

- 📱 Local Touch Control: ILI9341 TFT LCD with intuitive touch interface - 🏠 Smart Home Ready: Full MQTT integration with Home Assistant auto-discovery - 🌡️ Dual Sensors: DHT11 for ambient conditions + DS18B20 for hydronic systems - ⚡ Multi-Stage HVAC: Support for 2-stage heating and cooling systems - 💨 Advanced Fan Control: Auto, continuous, and scheduled cycling modes - 🌐 Web Interface: Complete web-based…

ESP32-Simple-Thermostat, from the project README
From the project README

Main components on the ESP32-Simple-Thermostat

DHT11LM2596S-5ESP32_DevKit_V1_DOIT_30GPIOs

ESP32-Simple-Thermostat bill of materials (BOM)

40 components, 19 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
DHT11
U1
1
LM2596S-5
U2
1
ESP32_DevKit_V1_DOIT_30GPIOs
A1
6
2N2222A-TO92
Q1, Q2, Q3, Q4, Q5, Q6
1
PINHD_1x18_Male
J1
1
Screw_Terminal_9_P3.50mm
J2
1
DS18B20
J3
1
3.2 lcd tft
J4
1
AHT20
J5
6
G5Q-1A
K1, K2, K3, K4, K5, K6
6
1N4007
D1, D2, D3, D4, D5, D6
1
KBP210G
D7
1
SS34
D8
1
SRR1260-120M
12uH_5.2A_1260
Bournes
L1
1
1000uF_50V
C5
2
100nF_Ceramic
C6, C9
1
470uF_10V
C8
6
4.7k
R1, R2, R3, R4, R5, R7
1
Resistor
R6

ESP32-Simple-Thermostat design files

The KiCad project lives in the jrtaylor71/ESP32-Simple-Thermostat repository on GitHub; these links point at the commit this page was built from.

ESP32-Simple-Thermostat: common questions

What microcontroller does the ESP32-Simple-Thermostat use?

The ESP32-Simple-Thermostat is built around the ESP32_DevKit_V1_DOIT_30GPIOs, from the ESP32 family.

How big is the ESP32-Simple-Thermostat PCB?

The ESP32-Simple-Thermostat measures 133 × 89.5 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the ESP32-Simple-Thermostat?

40 components, from 19 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 ESP32-Simple-Thermostat design files?

From the jrtaylor71/ESP32-Simple-Thermostat 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 ESP32-Simple-Thermostat design in my own project?

The repository has no license, so all rights stay with jrtaylor71. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the ESP32-Simple-Thermostat 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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