Blockclock 🧊⏰

Private homebrew project for a blockclock

Hardware

• Raspberry PI Zero W
• Neopixel (ws281x)

Power Calculations

POWER of a pixel == 0,06A (per LED 0,02A)

Count 250 Pixel == 15A

Power Source: 10A

Rapsi Power Consumption ~ 0,4A

DO NOT RUN ALL ON FULL POWER

ws281x.setBrightness(100) // below 60%

Setup

• clone
• create .env from .env.example
• npm i

Simple Testing

sudo node app_pixel.js 50 65280

Problem: Hardware revision is not supported

• Follow this

Autostart

# Install pm2 globally
sudo npm install pm2@latest -g

# Set it at startup
pm2 startup
## Follow the on screen instructions

# start app with ecosystem
pm2 start ecosystem.config.js

# save pm2 list for startup
pm2 save

Apps

# Text anzeigen
sudo node app_text.js "hi hi hi"

# Pixel Testen
sudo node app_pixel.js 50 65280

# Blockclock
sudo node app_blockclock.js