
The PiSquare, an RP2040 & ESP-12E-based board, is a smart way to use multiple Raspberry Pi HATs without stacking on Raspberry Pi. Instead, PiSquare uses Socket programming to wirelessly communicate Multiple (“n” numbers of HATs) Raspberry Pi HATs. The PiSquare is an RP2040 & ESP-12E-based board, a smart way to use multiple Raspberry Pi HATs without stacking on Raspberry Pi. Instead, PiSquare uses Socket programming to communicate Multiple (“n” numbers of HATs) Raspberry Pi HATs wirelessly.”

You can find PiSquare very useful in several ways, as we were bound to use a single HAT on Raspberry Pi or a maximum of 3 Raspberry Pi HATs using PiStack. Still, you can’t connect the same HATs twice on it (like more than two UART or SPI-based Raspberry Pi HATs simultaneously). PiSquare lets you connect as many HATs as you want without stacking them on Raspberry Pi, whether SPI, I2C, or SPI HATs. You can operate all Raspberry Pi HATs wirelessly.
Specifications:
- Onboard: ESP-12E & RP2040
- GPIO: 40 Pins Raspberry Pi Compatible
- Flash Memory: 16 Megabit
- Display: 0.91″ OLED Display
- Operating Voltage: 3.3V
- Communication: SPI/I2C/UART
Kit Content: 1 x PiSquare Board only
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