Cardputer-Adv Compact, Programmable ESP32-S3 Computer

The Cardputer-Adv is a credit card-sized programmable computer, powered by the Stamp-S3A core module (based on ESP32-S3FN8) . It features a 1.14″ LCD display and a 56-key minimalist mechanical keyboard , offering intuitive interaction and smooth input for embedded development and prototyping.

High-Quality Audio System Equipped with the ES8311 audio codec, MEMS microphone (high SNR), NS4150B amplifier, and a 1W speaker, it delivers crisp audio input/output . A 3.5mm audio jack lets you connect external headphones or speakers for enhanced sound experience .

Long-Lasting Battery & Power Management Powered by a 1750mAh lithium battery, combined with low-power design and an independent hardware switch, it ensures extended usage without frequent charging .

Built-In Sensors & Expansion Interfaces Includes a BMI270 6-axis motion sensor , infrared emitter , microSD card slot , and versatile connectivity via HY2.0-4P Grove port and EXT 2.54-14P expansion busperfect for sensor integration and peripheral control .

Modular Base Design The base features magnetic attachment and is LEGO-compatible, making it ideal for creative mounting and modular builds .

Ideal For:

• Quick implementation project

• Industrial control systems

• Smart home automation

• STEM education & maker projects

Whether you’re building an IoT hub, testing sensors, or developing edge AI applications, Cardputer-Adv delivers power, flexibility, and portability in one sleek package .

Features

Dual-Core ESP32-S3 Performance Powered by the ESP32-S3FN16 processor with a blazing 240MHz clock speed, perfect for demanding embedded applications and edge computing tasks.

Integrated Display & Input Features a 1.14-inch LCD screen and a 56-key minimalist mechanical keyboard, enabling full standalone operation for coding, control, and interaction.

Professional Audio System Includes an ES8311 audio codec, high-SNR MEMS microphone, NS4150B amplifier, and a 1W speaker for crisp audio input/output. Also supports 3.5mm headphone jack for external audio devices.

Rich Sensor Suite Built-in BMI270 6-axis motion sensor and infrared emitter allow for motion detection, gesture control, and environmental interaction.

Multiple Expansion Options Supports HY2.0-4P Grove interface, 14P EXT expansion bus, and microSD card slotideal for connecting sensors, modules, and storage.

Long Battery Life Equipped with a 1750mAh lithium battery, optimized for low power consumption and paired with an independent power switch for extended runtime.

Compact Card Design Credit card-sized form factor with magnetic base and LEGO-compatible mounting holes, perfect for modular builds and creative setups.

Industrial Grade Reliability Operates reliably in 040C environments with robust construction, suitable for industrial control and field deployment.

Multi-Platform Support Compatible with Arduino IDE, ESP-IDF, MicroPython, and UIFlow, offering flexible development across platforms.

Wireless Connectivity Supports Wi-Fi 2.4GHz, Bluetooth 5.0, and infrared communication, enabling seamless wireless integration for IoT and automation projects.

Difference Between Cardputer V1.1 and Cardputer Adv and Cardputer

Product Comparison Item	Cardputer-Adv	Cardputer v1.1	Cardputer
Core Module	Stamp-S3A	Stamp-S3A	Stamp-S3
RGB LED Logic	Shares power with display backlight, optimized control logic	Shares power with display backlight, optimized control logic	Powered directly
Antenna Design	Optimized antenna design for better reception	Optimized antenna design for better reception	Standard antenna
Battery Capacity	1750mAh	120mAh + 1400mAh	120mAh + 1400mAh
Audio Solution	ES8311	NS4168 + SPM1423	NS4168 + SPM1423
Audio Port	3.5mm audio jack	/	/
IMU	BMI270	/	/
Keyboard IO Exp.	TCA8418RTWR	74HC138	74HC138
Expansion Ports	HY2.0-4P + EXT 2.54-14P	HY2.0-4P	HY2.0-4P
Lanyard Hole	Yes	No	No

Applications

Versatile Applications for Cardputer-Adv

Rapid Prototyping & Functional Verification Ideal for engineers and makers who need to quickly test ideas, validate hardware logic, or iterate embedded workflows. The compact form factor and integrated display/keyboard make it perfect for on-the-go debugging, firmware testing, and UI simulation.

Industrial Control & Automation Deploy as a lightweight HMI or edge controller in factory automation, sensor monitoring, or machine status dashboards. With GPIO expansion and wireless connectivity, it supports real-time data acquisition, process control, and remote diagnostics.

Home Automation & Smart Devices Use it as a central node or interface for smart home systems, including temperature tracking, air quality monitoring, and infrared remote control. Seamlessly integrates with Home Assistant, ESPHome, or custom MQTT setups.

Embedded Systems Education A hands-on platform for students and educators to explore microcontroller programming, sensor integration, and no-code UI design. Supports Arduino, MicroPython, and ESP-IDFperfect for STEM labs, workshops, and IoT curriculum.

Wireless Communication & IoT Projects Equipped with Wi-Fi, Bluetooth 5.0, and IR, its ready for IoT prototyping, wireless sensor networks, and cloud-connected devices. Combine with Grove modules or external sensors to build scalable, low-power solutions.

Specifications

Specification	Parameter
SoC	ESP32S3FN8 @ Dualcore Xtensa LX7, up to 240MHz
Flash	8MB
External Storage	microSD
Display	ST7789V2 @ 1.14″, 240135px
Keyboard	56 keys (414)
Key Actuation	160gf
Expansion Ports	HY2.04P + EXT 2.5414P
IR	1 IR emitter
Audio Codec	ES8311
Speaker	NS4150B amplifier + 8@1W speaker
Microphone	MEMS microphone, SNR: 65dB
IMU	BMI270
Battery Capacity	1750mAh
Operating Temp.	0~40C
Product Size	84.054.019.6mm
Product Weight	81.0g
Package Size	145.795.020.7mm
Gross Weight	98.5g

Special Notes

• Download Mode: Switch power OFF, hold G0 button, power ON, then release to enter download mode.

• Speaker AutoMute: Inserting a 3.5mm headphone jack disables the speaker amplifier.

Schematics

• Cardputer-Adv Schematics PDF
• Stamp-S3A Schematics PDF

Model Size

• Cardputer-Adv Model Size PDF

Softwares

Arduino

• Cardputer-Adv Arduino Quick Start
• Cardputer-Adv Arduino Driver Library

Esayloader

Cardputer-Adv Factory Easyloader