badge's Introduction

badge

Purpose

Badge is a fun way to display pertinent information to someone at an event. It is designed to replace the borrow paper "about" stickers or badges you get at events and spark a conversation.

Features

#1 - Badge wearer's name (set in config.h)
#2 - QR Code to a URL (set in config.h)
#3 - US standard CO2 label and value
#4 - Battery level
#5 - Wakes the ESP32 from deep sleep and refreshes the screen

Target configuration

See config.h for parameter configuration

Bill of Materials (BOM)

MCU
- ESP32
WiFi
- comment #define RJ45, uncomment #define WIFI in config.h
- Supported hardware
  - ESP32 based boards
Environment Sensors
- Supported hardware
  - SCD40 temp/humidity/CO2 sensor
- Technical references
Battery (monitor)
- define battery size in Step 2 of config.h
- Supported hardware
  - LC709203F battery voltage monitor
  - Adafruit batteries
Screen
- Supported hardware
  - 296x128 e-paper display
    - Adafruit MagTag (EPD)
- Technical References
  - https://cdn-learn.adafruit.com/downloads/pdf/adafruit-gfx-graphics-library.pdf

Issues and Feature Requests

See GitHub Issues for project

.plan (big ticket items)

gxEPD2 support
GPIO (button) ESP32 wakeup support to have multiple screens of information
- code is largely included to support this, need to change hardware

badge's People

Contributors

Watchers

badge's Issues

i2c power up/down

Is this automatically handled or is it drawing power in deep sleep()?

Why is black background/white text not working in screenName?

sparkLines do not work in this project

CO2 data is not stored persistently in screenCO2, and there can't be more than one sample due to the power management implemented when ESP32 deep sleep was implemented. Fix when multiple button support is activated via preferences.h storage used in AQ.