Anwaar, meaning “collection of lights” in Arabic, is the project we are presenting today, with a special focus on the Amulet within the Anwaar family. These are wearable devices designed for personal expression, featuring microcontrollers, power management circuits, wiring, hybrid supercapacitors, and beautifully crafted panels. Together, they serve as a unique medium for self-expression. You can wear them as accessories—necklaces, brooches, or pocket tokens—or incorporate them into various products or settings as desired.
The Amulet’s design consists of a two-piece assembly, with a baseboard connected to a faceplate via a low-profile header and M.2 screws. These small, disc-shaped units measure 36 mm in diameter and 7.2 mm in thickness, with an interchangeable faceplate that allows users to customize their panel art. The baseboard handles energy storage and power management.
The Anwaar project has been designed to help beginners in PCB design create their own compatible faceplates. Although some activities, such as component replacement, may require moderate soldering skills, the 1.27mm pitch SMD connectors chosen for this project are easy to solder.
Anwaar in Action
PWM Fade Example
PTC Touch Example
Faceplate Swap Example
Features & Specifications
All Amulets in this campaign come with the A-TINY-15F baseboard and a compatible faceplate. One of the available faceplates is the A-Proto board, which allows users to prototype their own designs.
A-TINY-15F Baseboard
- ATtiny1616-MNR MCU
- 2.8 V 15F hybrid capacitor
- Two-channel USB UART UDPI for programming & serial debugging
- TPS63900 buck-boost converter with dynamic voltage scaling
- Programmable VDD range from 1.8 V to 3.6 V
- Low-profile header with six PWM pins (I²C and Analog signals available on select pins)
- Power switch for output control
- ROHM charge controller for CC/CV charging
- Includes spacers and five M.2 screws
- Dimensions:
36 mm diameter
1.6 mm thickness
4 mm gap between the baseboard and faceplate
The combined thickness is approximately 7.2 mm
A-Proto Faceplate
- Can be used to break out from the baseboard and test your own faceplate designs
- Can also be used for freehand soldering of your custom faceplates
- Pads are broken out for all pins
- Includes resistors to set VDD to either 1.8 V or 3.0 V
This project will be crowdfunded on Crowd Supply. For more details, visit Anwaar.
If you have any questions about PCBs or PCBA, please feel free to contact me at info@wellcircuits.com.
