Assemble Fire Extinguishing Robot

Remove the ultrasonic sensor and two photoresistors

Put on a fan module and two flame sensors

You can make the fan module install further if the fan module and flame sensors interfere

Wire up

Wire up the two flame sensors

Flame Sensor	Keyestudio 8833 Board
G	G
V	V
A	A1

Flame Sensor	Keyestudio 8833 Board
G	G
V	V
A	A2

Wire up the fan module

DC130 Motor	Keyestudio 8833 Board
G	G
V	V
IN+	D12
IN-	D13

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We adopt a model 18650 lithium battery with a pointed positive pole, whose power and capacity are not required.