I/O Expander

8 devices

Products with I/O expander ICs — chips that add extra GPIO pins via I2C or SPI.

LILYGO T5 E-Paper S3 Pro Lite

Dev Board

A pocket-sized ESP32-S3 development board with a 4.7-inch capacitive touchscreen e-paper display (960×540, 16 grayscale), anti-glare glass, warm-toned backlight, MagSafe wireless charging, and compreh

Xtensa LX7 dual-core @ 240MHz, FPU, AI vector extensions, HW crypto (AES/SHA/RSA)512KB SRAM16MBWiFi 802.11 b/g/nBLE BLE 5.0

E Reader Smart Home Dashboard Weather Display Digital Signage

~$71View

ESP32-DIV V2.0

Security Tool

Open-source multi-band wireless development toolkit with ESP32-U, 2.8" ILI9341 TFT display, 5 antennas, and SD card slot covering WiFi, BLE, 2.4GHz, and Sub-GHz frequency bands for security research a

Xtensa LX6 dual-core @ 240MHz, FPU, HW crypto (AES/SHA/RSA)520KB SRAM16MBWiFi 802.11 b/g/nBLE BLE 4.2Zigbee falseEthernet false

Wireless Security Research Spectrum Analysis Packet Monitoring iot

~$72View

CircuitMess Chatter 2.0

communicator

DIY encrypted LoRa communicator kit building a pair of devices for off-grid text messaging up to 2km range. Features ESP32, LLCC68 LoRa radio, and 160×128 TFT display.

Xtensa LX6 dual-core @ 240MHz, FPU520KB SRAM4MBWiFi 802.11 b/g/nBLE BLE 4.2

Off Grid Communication Lora Messenger Stem Education Emergency Communication

~$217View

CircuitMess NASA Mars Perseverance Rover

Robotics Kit

NASA-themed DIY robotics kit with ESP32-S3, camera, dual DC motors, 3 servos, and WiFi/BLE. Build a programmable Mars Rover replica with robotic arm and live video feed.

Xtensa LX7 dual-core @ 240MHz, FPU, AI instructions512KB SRAM4MBWiFi 802.11 b/g/nBLE BLE 5.0

robotics Stem Education Educational Platform Wifi Camera Streaming

~$435View

Waveshare ESP32-S3-CAM-OV5640

Dev Board

ESP32-S3 AIoT camera board with 5MP OV5640 autofocus camera, dual-microphone array with noise cancellation, ES8311 audio codec, NS4150B speaker amplifier, battery charging, and display/camera expansio

Xtensa LX7 dual-core @ 240MHz, FPU, AI vector instructions512KB SRAM16MBWiFi 802.11 b/g/nBLE BLE 5.0

Computer Vision Ip Camera Ai Voice Assistant Security Camera

~$17View

Waveshare ESP32-S3-AUDIO-Board

Dev Board

ESP32-S3 AI smart speaker development board with dual-microphone array, ES8311 audio codec, 7 surround RGB LEDs, RTC, camera and LCD expansion interfaces, and LiPo battery support for voice assistant

Xtensa LX7 dual-core @ 240MHz, FPU, AI vector instructions512KB SRAM16MBWiFi 802.11 b/g/nBLE BLE 5.0

Ai Voice Assistant Voice Assistant Music Player Internet Radio

~$16View

Waveshare ESP32-S3-POE-ETH-8DI-8DO

Dev Board

Industrial ESP32-S3 controller with 8-channel optocoupler-isolated digital inputs (5-36V), 8-channel Darlington outputs (500mA each), PoE Ethernet (W5500), isolated RS-485 and CAN bus, RTC, and DIN ra

Xtensa LX7 dual-core @ 240MHz, FPU, AI vector instructions512KB SRAM16MBWiFi 802.11 b/g/nBLE BLE 5.0Ethernet 10/100 Mbps (W5500, PoE 802.3af)

Industrial Iot Plc Replacement Building Management Poe Iot Gateway

~$43View

Raspberry Pi CM4 IO Board

Dev Board

Official reference carrier board for the Raspberry Pi Compute Module 4. Exposes dual HDMI 2.0, Gigabit Ethernet, 2× USB 2.0, PCIe x1, dual camera/display FPC, microSD slot (for CM4 Lite), RTC, HAT hea

none (no onboard MCU; requires CM4 module)N/A (provided by CM4)N/A (provided by CM4)WiFi false (provided by CM4 module if WiFi variant)BLE false (provided by CM4 module if WiFi variant)Zigbee falseEthernet Gigabit Ethernet (RJ45, PoE-capable with HAT)

Iot Gateway Digital Signage Industrial Automation Smart Home

~$35View

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More to explore — popular traits shared by devices with Components: I/O Expander.

AI Voice Assistant STEM Education Digital Signage Xtensa LX7 dual-core @ 240MHz, FPU, AI vector instructions Development Board WiFi 4 (802.11 b/g/n)BLE 5.0 520KB SRAM 16MB Bluetooth 4.2 512KB SRAM 4MB Flash