Pimoroni Automation HAT

This module is used to extend the Raspberry's 40 GPIO pins to another set of 2x20 male pins and 8 parallel pins accessible on the terminal blocks in the that test leads are pushed. The electronic board offers great reliability with the Raspberry and is very easy to connect thanks to its existing suitable accessories but not included.
The module offers a set of mini jumpers to configure the GPIO.

This tiny little board features two chips from Maxim Integrated: MAX32664 and MAX30101. The 30101 Oximetry module  is the sensor on board responding for both oximetry and heart rate sesnsing. The MAX32664 is equipped with a Cortex M4 handling algorithimc calculations, digital filtering and automatic gain control. The board comes with I2C and SparkFun has provided to it Qwiic connectors for ease of use.

Raspberry Pi Pico HAT Expansion is an input/output expansion board designed for Raspberry Pi Pico, which provides a set of 2x20 pin headers in the form of Raspberry Pi header along with a set of 2 x 20 pins. It allows any HAT designed for Raspberry Pi to be connected to Raspberry Pi Pico.

This fingeprint scanner from ADH-Tech combines a highly precise fingerprint sensor module with an onboard MCU and UART interface enabling trivially very connection to any project.

The scanner independently reads and analyses the fingerprint thanks to an MCU algorithm that can send a converted digital signal to a peripheral serial interface for a data read. The onboard MCU algorithm enables operations such as for example a fingerprint enroll.

Controls 4 devices and loads up to 240V AC / 7A, 30V DC / 10A, a way to control high voltage / current devices. Helps the user to improve the intelligence of the devices. It consists of an "Optocoupler".

The Qwiic HAT is an absolute basic of Qwiic system for Raspberry. It enables a quick and efficient connection of an sensor to your Raspberry over I2C bus (GND, 3.3 V, SDA and SCL). As Qwiic enables daisy chaining of components, you can pretty much install as many sensors on the Qwiic HAT as you want. On top of that it fits perfectly Pi Tin enclosure from SparkFun enabling connection while in case.

Pimoroni Fan is the best you can do for your new Raspberry 4! It is a well known fact, Raspberries can get hot. Even though, there are plenty of solutions to that, you will find no better than this Pimoroni Fan. It is a no-solder device, hence you can put it on and off as you wish

This HAT for Raspberry has a lot of individual LED pixels to use it as a scrollable display. Control the brightness of its 119 pixels (17x7) individually by PWM and create animations or texts.

The 17 x 7 rectangular matrix has a total of 119 white LEDs that can be controlled individually. A dedicated extension to the Raspberry Pi Pico. The device uses the 12C bus for communication and can be safely powered via the USB port.

Pimeroni Unicorn HAT HD is one of the most popular and at the same time easiest to use Raspberry HATs in Pimoroni offering. Compared to the Unicorn HAT it is equiped with twice as many LEDs in a row and a column giving a matrix of 256 LEDS! All of this accessible in a really straight forward way and supported by a range of Python libraries available on github and officially issued by Pimeroni. The hat is compatible with all Raspbery boards given its universal 40 GPIO pinout