![Stacking HATs | Adafruit 16-Channel PWM/Servo HAT & Bonnet for Raspberry Pi | Adafruit Learning System Stacking HATs | Adafruit 16-Channel PWM/Servo HAT & Bonnet for Raspberry Pi | Adafruit Learning System](https://cdn-learn.adafruit.com/assets/assets/000/022/055/medium800/raspberry_pi_stackside.jpg?1420233390)
Stacking HATs | Adafruit 16-Channel PWM/Servo HAT & Bonnet for Raspberry Pi | Adafruit Learning System
![PiSquare enables wireless Raspberry Pi HAT control though ESP8266 and RP2040 MCUs (Crowdfunding) - CNX Software PiSquare enables wireless Raspberry Pi HAT control though ESP8266 and RP2040 MCUs (Crowdfunding) - CNX Software](https://www.cnx-software.com/wp-content/uploads/2022/04/PiSquare-Wireless-Raspberry-Pi-HAT-RP2040-ESP8266.jpg)
PiSquare enables wireless Raspberry Pi HAT control though ESP8266 and RP2040 MCUs (Crowdfunding) - CNX Software
![Stack HAT I/O Expansion Connector for Raspberry Pi 5 Sets with 2 x 20 Pin Headers, Stackable up to 5 Hats at a Time, Direct Pluggable @XYGStudy: Amazon.de: Computer & Accessories Stack HAT I/O Expansion Connector for Raspberry Pi 5 Sets with 2 x 20 Pin Headers, Stackable up to 5 Hats at a Time, Direct Pluggable @XYGStudy: Amazon.de: Computer & Accessories](https://m.media-amazon.com/images/I/6168Wc8X6UL._AC_UF894,1000_QL80_.jpg)
Stack HAT I/O Expansion Connector for Raspberry Pi 5 Sets with 2 x 20 Pin Headers, Stackable up to 5 Hats at a Time, Direct Pluggable @XYGStudy: Amazon.de: Computer & Accessories
![Raspberry Pi: Combine a Raspberry Pi with up to 4 Raspberry Pi Zeros for less than US$50 with the Cluster HAT - NotebookCheck.net News Raspberry Pi: Combine a Raspberry Pi with up to 4 Raspberry Pi Zeros for less than US$50 with the Cluster HAT - NotebookCheck.net News](https://www.notebookcheck.net/fileadmin/Notebooks/News/_nc3/Clster_HAT_v2_4_of_4_1024x1024.jpg)