Automatic fan control module for Raspberry Pi with I2C & 3.3V & 5V & TXD-RXD Connectors for Raspberry Pi
Do you want to extend the life of your fan, reduce its noise and control it automatically?
With this MaticControl fan module you can! As a bonus, the second connector provides access to the I2C pins, 3.3V pins & 5V pins. I2C pins along with a 3.3V pin are often used to connect displays or other modules that use an I2C pins.
Here is link for the product: https://leapmatic.com/product/hatl02fp-auto-fan-control-i2c-pins-2/
Full PDF manual download HERE
Place it on pins 1-10. And this is all you have to do on the hardware.
I. Fan Control
About the software for the fan control you have two options:
From Raspberry icon > Preferences> Raspberry Pi Configuration > Performance tab >set fan enable; Fan GPIO 4; and the temperature at which you want the fan to turn on. Save with OK
Thus, when the processor reaches the temperature you set, the fan will turn on. It will turn on off only when the processor temperature drops 10 degrees below the set on temperature. (For example, if you set the On temperature to 75 degrees, the fan will turn off when the processor reaches 65 degrees).
With these few easy steps, you now have automatic fan control.
Open the Console and type
You will open a graphical interface menu where you need to choose Performance Options:
Then Choose “Fan”
It will ask you if you want to enable fan temperature control? – Choose “Yes”
Here you need to set GPIO 4
Then set the temperature on which the fan will turn on
At last the system will inform you about the changes.
II. I2C pins and 3,3V power supply
GPIO 2 and GPIO 3 – the Raspberry Pi’s I2C1 pins – allow for two-wire communication with a variety of external sensors and devices. The I2C pins include a fixed 1.8 kΩ pull-up resistor to 3.3v. They are not suitable for use as general purpose IO where a pull-up might interfere.
I2C pins along with a 3.3V pin are often used to connect displays or other modules that use an I2C pins.
III. 5V Connector
Use of 5V connector as output – You can connect hats or other devices which need to be supplied with 5V.
Use of 5V connector as input – You can power your raspberry via this connector from an external power supply. It can be very convenient when you have several Pi’s and you can power them from one source. Power supply cables can run on either side of the MaticBox. This way you don’t have to set aside space on the side for the power connector that is on the Raspberry Pi itself. This will allow you to mount many Pi`s close to each other, with the power cables coming out from under the cover of MaticBox.
Note: This MaticControl module provide access to I2C, 5V power supply, GPIO14 (TXD), GPIO15 (RXD) pins via separate connectors on the top of the board.
Here is link for the product: https://leapmatic.com/product/hatl02f-auto-fan-control-i2c-pins -2/
Electrical Scheme of the module: