RouterPi – a Raspberry Pi Compute Module 4 router #PiDay #RaspberryPi @Raspberry_Pi @ZakKemble « Adafruit Industries – Makers, hackers, artists, designers and engineers!

Zak’s Electronics Blog describes RouterPi – a dual Ethernet interface router using a Raspberry Pi Compute Module 4 and a custom interface board.

I’ve been wanting to use a Raspberry Pi as my home internet router for a long time, but previous versions were not quite up to scratch. I needed two ethernet interfaces that could handle 1Gb traffic with low latency.


  • Raspberry Pi Compute Module 4 with 2GB RAM & 8GB eMMC
  • 2x Gigabit Ethernet interfaces (CM4 onboard & Realtek RTL8111HS)
  • WiFi U.FL to SMA connector
  • microHDMI port
  • microUSB OTG port
  • DS3231 RTC with battery backup
  • BME280 Environmental sensor
  • 12V to 5V regulator
  • Buzzer
  • Buttons for safe shutdown and restart/boot

See the build, software, and performance in the blog post.

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