m5stackM5Stack· Boards & embedded computing
CardKB2 Keyboard Unit (ESP32-C61)
Manufacturer part no. U215
$9.95≈ 8.74 €
Price summary
Listed by m5stack at €8.74. Delivered to France, including shipping, VAT and any customs duty, it comes to about €28.49. Prices last checked on 2026-09-29.
Delivered cost is an estimate for a single item shipped to mainland France; the seller's checkout is authoritative.
In stock
Estimated landed cost
| Item | €8.74 |
|---|---|
| Shipping | €15.00 |
| VAT (20%) | €4.75 |
| Total delivered | €28.49 |
Estimate for a single item delivered to mainland France, shipped from outside the EU: customs duty and clearance fees may apply and are charged by the carrier.
Also available second-hand on eBay
up to 62% off new
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Imported from outside the EU — duties and VAT included in the delivered cost; customs formalities and delays are not
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Imported from outside the EU — duties and VAT included in the delivered cost; customs formalities and delays are not
Visit ↗€2.49
billed $2.83
€11.11 delivered
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Used · sold by cleveland_cardz_llc · ships from US
Imported from outside the EU — duties and VAT included in the delivered cost; customs formalities and delays are not
Visit ↗€1.60
billed $1.82
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sold by stank-88 · ships from US
Imported from outside the EU — duties and VAT included in the delivered cost; customs formalities and delays are not
Visit ↗€1.59
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1996 Fleer Update Barry Bonds #U215 d0l
Used · sold by comc_consignment · ships from US
Imported from outside the EU — duties and VAT included in the delivered cost; customs formalities and delays are not
Visit ↗€1.33
billed $1.51
€14.59 delivered
Third-party listings on eBay, matched to this product by its part number or title. Robotitem neither sells nor warrants these items: condition, stock and lead times are the seller's, and a listing disappears once sold. Delivered cost includes the seller's actual shipping.
Specifications (automatically extracted)
Mechanical
| Weight | 35 g |
Description
Description Unit CardKB2 is a card-sized 42-key portable keyboard input unit. Its compact and lightweight form factor makes it ideal for on-the-go use and embedded integration. Powered by an ESP32-C61HF4 MCU with built-in 2.4 GHz Wi-Fi 6 support, the pre-installed firmware allows flexible configuration across four communication modes: I2C, UART, BLE HID, and ESP-NOW. The unit features an onboard HY2.0-4P expansion interface and a USB Type-C port for power supply and firmware flashing. Additional hardware includes an RGB LED status indicator, a reset button, and a Boot button. Input power overvoltage protection is also integrated, making this unit well-suited for wireless input, interactive control, and a wide range of portable application scenarios. Features Powered by ESP32-C61HF4 with Wi-Fi 6 / BLE wireless communication support Full keyboard input with support for multiple key combinations (single press, Sym, Fn) Onboard RGB LED (XL-1615RGBC-RF) for keyboard status indication Power Supply: USB Type-C DC 5V Includes 1 x Unit CardKB2 1 x HY2.0-4P Grove Cable (20cm) Applications Text input for portable devices Human-machine interaction in embedded systems Wireless control terminal for IoT devices Educational programming and maker projects Specifications Specification Parameter SoC ESP32-C61HF4 @ RISC-V 32-bit single-core, 120 MHz Flash 4MB Wi-Fi 2.4 GHz Wi-Fi 6 Keys 42-key keyboard, 1x Reset button, 1x Boot button USB Type-C Power supply / firmware flashing, default firmware log output: 115200bps @ 8N1 RGB LED 1x RGB LED Expansion Interface 1x HY2.0-4P Standby Power [email protected] (under Grove interface power supply conditions) Product Size 84.7 x 54.3 x 1.0mm Product Weight 22.4g Package Size 170.0 x 120.0 x 8.0mm Gross Weight 28.9g Learn and Documents → DOCUMENTS