Project Description

Project description

Smoker controller with an esp8266 at the heart to control the airflow of a sealed BBQ. Thermistor probes are used to sense changes in temperature, and a 12v fan reacts to these changes by toggling at certain intervals.

 

Firmware for ESP8266 is at:

https://github.com/efess/hios-smoker-esp8266

I used a 12v blower fan found on amazon

Firmware only supports the Maverick ET-732 probes which can also be found on amazon. (ET-73 probes have different resistence..)

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Design Files

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Component (19)
Qty
Description
2491

U1

1
Solderless connector for ESP-12E
BSS138

Q2, Q1

2
B138 Series 50 V 6 Ohms N-Ch Logic Level Enhancement Mode FET - SOT-23-3
ERJ-3EKF1002V

R16, R15, R1, R2, R9, R7, R5, R4, R3, R12, R11, R10, R13, R14, R17, R18, R19

17
Resistor Thick Film 0603 10k Ohm 1% 1/10 Watt ±100ppm °C Surface Mount Punched Carrier Tape and Reel
AMS1117-3.3

VR2

1
Sot223/Pkg 1-Amp 3.3-Volt Low Drop Out Voltage Regulatator

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