Phosphor is the name of a series of electroluminescent Shitty Add-Ons for badges.

These devices use a MIC4832 low noise EL driver and optional ATtiny85 MCU to control the EL circuitry and/or interact with the host badge. They can function with or without the MCU by placing the correct jumpers.

The design of each addon is produced by a series of carefully configured, routed, and framed copper pours on the front of the PCB. The design is then masked and painted with a series of electroluminescent paint layers, and top-coated with a clear, non-conductive insulator. When powered, the addon will illuminate in the pattern of the copper pours on the base layer.

Key Components

• 1x MIC4832 EL driver
• 1x ATtiny85 MCU (optional)
• 1x Shitty Add-On connector

Firmware

v0

• Various pulsation effects with the EL
• Mixed results from driving EL with PWM

Hardware

v0

• Compliant with V1.69bis of the #badgelife Shitty Add-On Standard (2x3 pins, SMD)
• I2C bus is no-connect
• GPIO pins are no-connect

Releases

Specials

Four unique special-edition phosphor addons were created as one-off gifts.

Poop

Since the addon spec declares these addons to be Shitty, I figured a literal joke was in order.

Scream

The Angstloch project uses a scream emoji as a logo of sorts.

Web

This is a miniaturized version of the same artwork used for the Tektite Web.