A single BlueMacro840 for use with LiPo batteries. USB-C Connector and a nRF52840 chip. Same footprint as the Arduino MicroDesigned by BlueMicro in Canada
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What is it? The BlueMacro840 is a nRF52840 controller inspired on the Adafruit nRF52840 feather but with the footprint of an Arduino Micro. It can be programmed using standard Arduino tooling and sup…Read More…
The BlueMacro840 is a nRF52840 controller inspired on the Adafruit nRF52840 feather but with the footprint of an Arduino Micro. It can be programmed using standard Arduino tooling and supports the Adafruit nRF52 libraries.
Many DIY keyboards use the Arduino Pro Micro or the Arduino Micro as their microcontroller. These don't support BLE communications natively. Because the nRF52 chips have a 32-bit ARM Cortex-M4F processor, they have plenty of processing power compared to the traditional AVR chips. The BlueMicro boards were inspired from the Adafruit nrf52 feathers but made to be used directly in DIY keyboards as a replacement for the atmega32u4 based controllers.
The BlueMacro840 has the same footprint as the Arduino Micro. As such, it makes available 24 GPIOs for your own use. This board is great for upgrading pro micro based keyboards.
The BlueMacro840 has the following features:
Due to the ongoing chip shortage, the availability of E73-2G4M08S1C modules (with chip antennas) has been very difficult and their costs have increased significantly (if they can be found). E73-2G4M08S1CX modules are more readily available directly from the manufacturer but require an external antenna (included).
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I collate all orders on Fridays and pack them over the weekend. As such, most shipments will ship on Mondays. However, on holidays and long weekends, shipments may be delayed.
I do ship tracked to Canada and to the USA. International shipping is untracked as it is very expensive to add tracking with CanadaPost.
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