Elecrow
Smart Temperature Control Fan and Power Expansion Board for Raspberry Pi
This smart fan and power expansion board are designed for DIY makers, especially for Raspberry Pi lover, it is compatible with Raspberry Pi 3/ 2B/ B+. Bui...
This smart fan and power expansion board are designed for DIY makers, especially for Raspberry Pi lover, it is compatible with Raspberry Pi 3/ 2B/ B+. Built-in temperature sensor, with active cooling fan, you can control flexibly the ON/OFF of mini fan via I2C command and GPIO programming. The fan can be controlled by hardware PWM. There are two channel outputs, OUT1 for external device, such as servo, motor, robots, mechanical arm, intelligent card etc, OUT2 for Raspberry Pi.
It can be used for robots, robotics arms, smart cars, smart controls, servo controls, etc.
Features
- output interface (HT3.96) can be programmed via GPIO programming to control the output of power supply.
- Max current from OUT2 is up to 4A if the OUT1 be closed; it dosen’t allowed programming control, it will be output to raspberry pi directly if the switch is turned on.
- Cooling fan can be replaced, you can refer to the fan specifications.
Specifications
- Width voltage input: 6v-14v with power switch.
- Output: DC 5V Max, 4A.
- Maximum current of output interface HT3.96: 2A
- Temperature range and accuracy: -25 ℃ ~ + 100 ℃ when the ± 2 ℃ -55 ℃ ~ +125 ℃ when the ± 3 ℃
- Side length (fan): 30mm
- Thickness (fan): 7mm
Package list
- Raspberry Pi Power Expansion Board x 1
- Cooling Smart Fan (with screws) x 1
- HT3.96-2P male head x 1
- Install screw pack x 1
Wiki & External links
Jargon buster
Plain-language definitions for the technical terms used above.
- GPIO
- General-purpose input/output pins are microcontroller pins you can set in software to read signals, switch devices on and off, or connect to peripherals. The number of GPIO pins matters because it limits how many buttons, LEDs, sensors, and other parts you can wire directly to the board.
- I2C
- I2C is a two-wire communication bus used by many sensors and small modules. It matters because several I2C devices can share the same two wires, but each device needs a compatible address and your controller must support I2C.
- PWM
- Pulse Width Modulation is a way for a digital pin to simulate variable output power by switching on and off very quickly. It matters for controlling things like LED brightness, motor speed, or servo-style signals from a microcontroller pin.
- servo
- A servo is a motor with built-in position control, usually told to move to a specific angle by a control signal. It matters when you need repeatable movement, such as steering, arms, flaps, or linkages, rather than continuous spinning.
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