The TNG Data Dispenser is a wearable environmental monitor built into a 3D printed replica of the Drug Dispenser prop from "Encounter at Farpoint," the pilot episode of Star Trek: The Next Generation.

In the episode, the entity Q puts humanity on trial as a "dangerously savage child race." A soldier from Earth's Post-Atomic Horror era wears the device as an aerosol inhaler. "Rapid progress to where humans learned to control their military with drugs."

We thought - what if instead of dispensing drugs, it dispensed data? Real environmental data you can actually use.

This unit displays live CO2, humidity, temperature, and battery level as shaped colored bars that match the on-screen prop graphics. When CO2 levels get too high, a haptic motor buzzes to alert you. 

Six display modes cycle through LCARS-style graphs, diagnostics, and a customizable name badge with a scannable QR code. It runs on a LiPo battery with automatic sleep and a brightness toggle for indoor use.

The Adafruit ESP32-S3 Reverse TFT Feather makes it easy to build display-first wearable projects. It has a built-in 240 x 135 color TFT and a STEMMA QT connector for plug-and-play I2C sensors. It features the ESP32-S3 with 4 megabytes of flash, 2 megabytes of PSRAM, WiFi, Bluetooth and an onboard MAX17048 battery fuel gauge that gives an accurate charge percentage and time remaining.

The STCC4 is a tiny CO2 sensor that can also read humidity, temperature and fits in just about any enclosure. 

We think this is a great project for cosplay, conventions and maker events where you want a prop that actually does something.

The LCARS graphs make it feel like a real piece of Starfleet equipment. The name badge screen shows your name, department, registry number, and a QR code that links to your project page.