A
Anonymous
Mar 28, 2026
Rating: 3/5
Hard to flash first time
Took me a while to get the bootloader mode right. Works now though.
Description
Promicro NRF52840 Development Board Compatible with nice!nano V2.0 with Bluetooth Charging Management
Reviews
Attributes
| Brand | - |
| Category | Electronic Components / Maker DIY / Development Boards & Control Boards |
| Origin | - |
| Microcontroller | Nordic NRF52840 |
| Flash Memory | 1 MB |
| SRAM | 256 KB |
| Wireless Protocol | Bluetooth 5.0 / 2.4GHz |
| USB Interface | USB Type-C |
| Battery Charging | Built-in Li-Po Management |
| Logic Voltage | 3.3V |
| Pin Layout | ProMicro Compatible |
| Dimensions | 33 x 18 x 8 mm |
| Weight | 3.5 grams |
5 reviews
A
Anonymous
Mar 18, 2026
Rating: 4/5
Great board, minor pin confusion
Hardware is solid. Wish the pinout diagram was clearer in the box.
A
Anonymous
Feb 19, 2026
Rating: 5/5
Perfect for custom keyboards
Works flawlessly with ZMK. Bluetooth pairing is quick and stable.
A
Anonymous
Feb 12, 2026
Rating: 5/5
Stable connection
Using this for a mouse project. No lag detected. Charging works well.
A
Anonymous
Feb 09, 2026
Rating: 5/5
Excellent NRF52840 clone
Compatible with nice!nano firmware out of the box. Very happy with purchase.
5 FAQ
Q: Does it come with headers soldered?
A: No, headers are not included to keep the profile low.
Q: What is the maximum charging current?
A: The built-in charging management supports up to 100mA safely.
Q: Can I use this for a wireless mouse?
A: Yes, the NRF52840 is suitable for low-latency mouse projects.
Q: Is this compatible with QMK firmware?
A: Yes, it supports QMK and ZMK firmware.
Q: What type of battery connector is used?
A: It uses a standard JST PH 2.0mm connector.
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