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M5Stack CardKB2 42-Key Keyboard Unit: 42 keys
If you are interested in more details, you can find full information on the seller's page.
€15.34
Last price update: 11/13/26
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Product details
Features
- ESP32 C61HF4 processor: 32-bit single-core RISC-V at 120 MHz
- 4 MB flash memory
- 2.4 GHz Wi-Fi 6 and BLE support
- Pre-installed firmware supports I2C, UART, BLE HID, and ESP-NOW communication modes
- USB Type-C port for power supply, firmware flashing, and default firmware log output at 115200 bps, 8N1
- 1 × HY2.0 4P expansion interface
- 1 RGB LED, 1 Reset button, and 1 Boot button
- Integrated input power overvoltage protection
- Supports single press, Sym, and Fn operations
- 42 keys
M5Stack CardKB2 is a keyboard unit with 42 keys and an ESP32 C61HF4 32-bit single-core RISC-V processor running at 120 MHz. It has 4 MB of flash memory and supports 2.4 GHz Wi-Fi 6 and BLE.
Pre-installed firmware supports I2C, UART, BLE HID, and ESP-NOW communication modes. The USB Type-C port supports power supply, firmware flashing, and default firmware log output at 115200 bps, 8N1.
General specs
- Brand: M5Stack
- Model: CardKB2
- Seller: Banggood
- ID: 2050637
- Brand: M5Stack
- USB Port: USB Type-C port for power supply, firmware flashing, and default firmware log output at 115200 bps, 8N1
- Processor: ESP32 C61HF4; RISC-V 32-bit single core at 120 MHz
- Model Name: CardKB2
- Flash Memory: 4 MB
- Product Type: Keyboard unit
- Wireless support: 2.4 GHz Wi-Fi 6 and BLE
- Keyboard key count: 42 keys
- Expansion Interface: 1 × HY2.0 4P
- Input power protection: Input power overvoltage protection is integrated
- Keyboard input operations: Supports single press, Sym, and Fn operations
- Onboard controls and indicator: 1 RGB LED, 1 Reset button, and 1 Boot button
- Communication modes supported by pre-installed firmware: I2C, UART, BLE HID, and ESP-NOW
- First listed by seller: October 20, 2026
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| Brand | M5Stack | M5Stack | Lofree | HXSJ | Logitech | |
| Model | CardKB2 | ATOM Echo | Yellow B Duck DOT Retro | L2 | MK781 | K480 |
| Price | €15.34 | €18.41 | €112.19 | €46.89 | €14.98 | €27.14 |
| Seller | Banggood | Banggood | Alibaba | Banggood | Sunsky | Alibaba |
| Update | Nov 13, 2026 | Nov 13, 2026 | Nov 13, 2026 | Nov 13, 2026 | Nov 13, 2026 | Nov 13, 2026 |
| Model Name | CardKB2 | ATOM Echo | MK781 | |||
| Product Type | Keyboard unit | Programmable smart speaker development kit | wireless keyboard | Bluetooth Keyboard | ||
M5Stack CardKB2 42 keys
€15.34
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