Zmanim, worked out on site
Every zman, the Hebrew date, parsha, Yom Tov, fasts, the Omer and daily learning, calculated on the box itself for your shul's location and minhag.
Works with no internet
The screens keep running from their last instructions if the network drops, and switch to the Shabbos display on time by themselves.
Minyanim that follow the zmanim
Mincha 15 minutes before shkiah, rounded to 5. Different times for Erev Shabbos, Shabbos and Yom Tov. Countdowns to the next minyan.
Design your own screens
Drag and drop clocks, zmanim tables, announcements, ticker, Daf Yomi and more. Ready-made designs in eight themes, Hebrew and English.
Announcements through the speakers
Timed chimes and announcements, kept silent on Shabbos and Yom Tov, with Sefirah and the Three Weeks as options.
One box, many TVs
A small hub runs everything; each TV shows the right display for the time of day, the day of the week and the time of year.
Runs on what you have
A Raspberry Pi, a Windows 10 or 11 PC, or an old PC given new life with Linux. One installer asks a few questions and does the rest.
Updates itself, safely
Signed updates install at night, never on Shabbos or Yom Tov, and roll back by themselves if anything goes wrong.
Free and open
Open source (GPL). No subscription, no account, and nothing about your shul is sent anywhere.
What you need
- One computer to run it: a Raspberry Pi 5 (or 4) with a clock battery, or any Windows 10/11 PC, or an old PC with Ubuntu or Debian
- A TV for each screen. The computer drives one TV itself; each extra TV needs a small Raspberry Pi, a mini PC or a smart TV's browser
- Optional: a USB audio adapter into your existing amplifier
- Your shul's network (Wi-Fi or cable). Internet is only needed for updates.
We supply and install complete systems in London, or you can install it yourself with the step-by-step guide. Current version: 0.4.0. The software is free and open source (GPL); updates are signed and install themselves at night, never on Shabbos or Yom Tov.
Request a copy
Tell us a little about your shul. You'll get a download link straight away, and we'll be in touch if you'd like help.