CirkitScape Top HAT adds extra GPIOs, RS-485, 3-channel ADC, four USB 2.0 ports to Raspberry Pi SBCs

CirkitScape Top HAT (also written as TopHAT) is a multi-function expansion board for the Raspberry Pi that adds 16 extra GPIOs through an I2C expander, an RS-485 header, a 3-channel, 12-bit ADC, and four extra USB 2.0 ports through a USB hub. The company told us it’s designed to “make prototyping, sensing, automation, and real-world Raspberry Pi builds cleaner and easier without stacking as many separate add-ons”. A Top HAT Sensor Kit is also offered with a few sensors for environmental monitoring builds. CirkitScape Top HAT specifications: Supported SBCs – Raspberry Pi boards and compatible SBCs with 40-pin GPIO header, including the Pi 5, 4, 3B+, and Zero USB 4x USB 2.0 (480 Mbps) ports 4-port USB 2.0 hub Per-port current-limited switches (500mA per port) I/O Expansion 16x GPIOs via MCP23017 I²C expander Analog Input – 3-channel 12-bit ADC via ADS1015 chip RS-485 interface via MAX485 half-duplex transceiver Communication Interfaces

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