Open Flashlight

Compact, high power, reliable open source flashlight. Designed with KiCAD, Atopile, and Fusion360

Mechanical design by Jessie Stiles

PCBA files + 3D models can be viewed here. PCBA files are placed in the build artifacts with each Actions run.

Check out my Hackaday post on this build.

Builds:

• uv-lamp.ato is a 1.6mm aluminum PCB designed to hold 1-3 series 3535SMD LEDs
• ccdriver.ato contains the BMS and LED driver
• attiny816.ato contains the attiny816 build used by the ccdriver

TO DO:

• Finish and test ccdriver
• Add battery and LED current sensing via the ATTinyA ADCs (+ investigate 2-series true differential ADCs)
• Finish mechanical design
• Create builds for other LEDs and battery sizes

Features:

• TI BQ24040 Battery Charger
• TI TPS61169LED Driver
• 1A USBC Charger
• PWM dimming with adjustable max current
• ATTiny816 microcontroller with open source firmware (WIP). Programmable over UPDI using a standard serial adapter.