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IoT-temp based fan speed controller

LudoProvost·IoT-temp-based-fan-speed-controller·temp_fan_controller_pcb/temp_fan_controller.kicad_pcb

IoT-temp based fan speed controller PCB layout, top view — open source ESP8266 board by LudoProvost

About the IoT-temp based fan speed controller PCB

IoT-temp based fan speed controller is an open source ESP8266 PCB design by LudoProvost, published on GitHub. It is a 2-layer board measuring 52 × 56 mm, with 10 components from 10 distinct parts.

Its main chip is the NodeMCU1.0(ESP-12E), from the ESP8266 family. Other key parts include the LM340, FAN12V and DS18B20. By type, the board carries 4 ICs, 2 capacitors, 2 resistors and 1 transistor.

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

From the project

Using the ESP8266 NodeMCU for data processing and Blynk app for data obversation, a temperature sensor is used to control the speed of a 12V fan.

3D render of the PCB without a custom footprint for the NodeMCU:

Main components on the IoT-temp based fan speed controller

LM340NodeMCU1.0(ESP-12E)FAN12VDS18B20

IoT-temp based fan speed controller bill of materials (BOM)

10 components, 10 distinct parts.

QtyPartRefs
1
LM340
U1
1
NodeMCU1.0(ESP-12E)
U2
1
FAN12V
U3
1
DS18B20
U4
1
IRF540N
Q1
1
Barrel_Jack_Switch_Pin3Ring
Barrel_Jack_Connector1
1
0.22uF
C1
1
0.1uF
C2
1
4.7k
R1
1
10k
R2

IoT-temp based fan speed controller design files

The KiCad project lives in the LudoProvost/IoT-temp-based-fan-speed-controller repository on GitHub; these links point at the commit this page was built from.

IoT-temp based fan speed controller: common questions

What microcontroller does the IoT-temp based fan speed controller use?

The IoT-temp based fan speed controller is built around the NodeMCU1.0(ESP-12E), from the ESP8266 family.

How big is the IoT-temp based fan speed controller PCB?

The IoT-temp based fan speed controller measures 52 × 56 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the IoT-temp based fan speed controller?

10 components, from 10 distinct parts. The full bill of materials is listed on this page.

Where can I download the IoT-temp based fan speed controller design files?

From the LudoProvost/IoT-temp-based-fan-speed-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 IoT-temp based fan speed controller design in my own project?

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

Can I test firmware for the IoT-temp based fan speed controller without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP8266 firmware against it before you order a PCB.

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