Description
Cardputer v1.1 is a high-performance card computer designed for engineers, offering a comprehensive upgrade over the original Cardputer. The new version features the brand new StampS3A main controller, with optimized antenna and button design for the core module, significantly enhancing system stability and user experience. In terms of control interaction, the product is equipped with a 56-key keyboard and a 1.14-inch TFT screen for efficient display and operation; it includes an onboard SPM1423 digital MEMS microphone supporting recording and wake-up functions, and outputs audio through a cavity speaker. Additionally, an infrared emitter provides external infrared control interaction capabilities. For expansion, the built-in Grove interface facilitates custom sensor expansion; for storage, a Micro SD card slot is available for easy storage expansion. The power system uses an internal 120mAh and a base 1400mAh lithium battery power solution, integrating lithium battery charging and boost-buck circuits, greatly enhancing battery life. Structurally, the base includes magnets for metal attachment and is compatible with LEGO hole expansion. This product is widely applicable in various scenarios such as rapid function verification for engineers, industrial control, and home control systems.
Features
- StampS3A Microcontroller
- 56-key keyboard
- 1.14-inch TFT screen
- Cavity speaker and SPM1423 digital MEMS microphone
- Infrared emitter for infrared control interaction
- HY2.0-4P interface
- Micro SD card slot
- Built-in 120mAh and 1400mAh lithium battery in the base
- Base with magnets
- Compatible with LEGO hole expansion
- Development Platform
- UiFlow2
- Arduino IDE
- ESP-IDF
- PlatformIO
Includes
- 1 x Cardputer V1.1
- 1 x L-shaped hex wrench 1.5mm (for M2 screws)
Applications
- Rapid function verification and prototyping
- Industrial control and automation
- Home control systems
- Data collection and sensor monitoring
- Embedded system development and learning
- Wireless communication and IoT projects
Specifications
| Specification | Parameter |
|---|---|
| StampS3A | ESP32-S3 (Xtensa LX7), 8MB Flash, Wi-Fi, OTG, CDC |
| Flash | 8MB |
| Storage | SD Card |
| Keyboard | 56 keys (4 x 14) |
| Buttons | 1 x Reset button + 1 x User button |
| Grove | 1 x HY2.0-4P |
| Battery Capacity | 120mAh + 1400mAh (in base) |
| Screen | ST7789V2@1.14 Inch, 240 x 135px |
| Cavity Speaker | 8Ω@1W I2S@NS4168 |
| Microphone | MEMS Microphone@SPM1423 |
| Infrared Distance | ∠0° Infrared emission distance (straight line): 410cm ∠90° Infrared emission distance: 66cm ∠45° Infrared emission distance: 170cm |
| Sleep Current | DC 4.2V@0.15uA |
| Working Current | IR emission mode: DC 4.2V/148.07mA Keyboard mode: DC 4.2V/138.93mA |
| Operating Temperature | 0 ~ 40°C |
| Product Dimensions | 84.0 x 54.0 x 19.7mm |
| Product Weight | 90.0g |
| Package Dimensions | 145.7 x 95.0 x 20.7mm |
| Gross Weight | 106.8g |
Product Comparison
| Comparison Item |
Cardputer v1.1 
|
Cardputer 
|
|---|---|---|
| Core Module | StampS3A | StampS3 |
| RGB LED Control Logic | RGB LED shares power with screen backlight, optimized control logic | Power supplied when powered on |
| Antenna Design | Optimized antenna design for better signal reception | Standard antenna design |
| StampS3 module Boot button | Optimized button feel, buttons are 4.0 x 3.0 x 2.0mm | Button specifications 2.6 x 1.6 x 0.55mm |
| Power Consumption | Optimized for lower power consumption | Standard design |