Last week, when I saw LilyGO T-Keyboard based on ESP32-C3, I didn’t think much of it and did not expect many people to be interested, so I skipped it. But earlier today I also noticed Solder Party launched a very similar-looking product – the BB Q20 Keyboard with Trackpad – based on Raspberry Pi RP2040 MCU. So after all, it might be worthwhile to look into those mini keyboards for makers.
- SoC – ESP32-C3 single-core RISC-V processor with Wi-Fi 4 and Bluetooth 5.0 LE connectivity
- Display – 0.99-inch TFT color LCD
- QWERTY keyboard
- Battery – 400mAh built-it battery
- Power Supply – 5V via USB port
- Dimensions – 6.9 x 5.3 x 1.7 cm
The company promotes it as a mini Bluetooth keyboard for iOS and Android smartphones, as well as Windows machines, but also has plans to make it work with their T-Echo LoRa messaging hardware. LilyGO provides an Arduino sketch to make it work as a Bluetooth LE keyboard.
The T-Keyboard can be purchased on Aliexpress for $25.98 including shipping.
- MCU – Raspberry Pi RP2040 dual-core Cortex-M0+ MCU with 264 KB of embedded SRAM
- Storage – 16 MBit SPI flash (Gigadevices GD25Q16C)
- USB – 1x USB Type-C port for power, programming, and USB HID support
- User input – QWERTY keyboard, optical trackpad that works as a USB HID mouse
- Audio – Built-in microphone (enable/disable with jumper)
- PMOD connector (I2C)
- Qwicc/Stemma QT connector (I2C)
- Dimensions – TBD
It’s quite a different product than the T-Keyboard as it lacks wireless connectivity and a small display, but does offer expandability via I2C through PMOD and Qwicc connector. It does not need a battery either, and instead can be used as a USB HID keyboard & mouse when connected to a desktop computer (Windows/Linux/MacOS), a smartphone (iOS/Android), or an SBC (Raspberry Pi, etc).
Jean-Luc started CNX Software in 2010 as a part-time endeavor, before quitting his job as a software engineering manager, and starting to write daily news, and reviews full time later in 2011.