Onboard-RP2040 | USB-C Type Port | Multiple HAT Connectivity | ESP8266 | 0.91 OLED | 40-Pins GPIO Connectivity | 16 Mega-Bits Flash
"PiSquare an RP2040 & ESP-12E based board, a smart way to use multiple Raspberry Pi HATs without stacking on Raspberry Pi. PiSquare uses Socket programming to communicate Multiple ("n" numbers of HATs) Raspberry Pi HATs wirelessly."
Connecting Multiple Raspberry Pi HATs Wirelessly without Multistaking
www.tecnohub.org
This tutorial will show you How to install Java (OpenJDK) on a Raspberry Pi running the newest Raspbian OS.
**AC DC Converter** with Two Channels Compact and Powerful With an output voltage of 24V+5V, a very compact volume, and low power consumption, this dual output device with an industrial grade design can function in temperatures ranging from -40 to 85 degrees Celsius and control up to two devices at the same time.
www.kickstarter.com
RP2040 Chip | Micro-SD Card Slot | 64 MB Flash Memory | Two Buttons | Micro-USB Power Supply Port | Standard Raspberry Pi 40 Pins