Repeater Controller

The BATC ATV Repeater Controller uses a Raspberry Pi 4 as a fully-featured, but simple-to-construct, ATV repeater controller. The design is intended to be used with an HDMI Video switch, but can also be used with older composite video designs.

The RPi will control a video switcher either by Infra Red or GPIO pins and will generate a carousel of images. On receipt of a valid signal from, for example, a Ryde receiver, it will switch to that input - when the receiver closes, the logic will play a key sequence, dekey the tx and go back to the carousel.

Every repeater is different and this is designed as a core logic that can be used as the basis for an ATV repeater. The design is flexible with a large number of parameters in an SSH config file so that users can configure it to meet their own needs.

Initial design and construction information will be published here to enable collaborative development, but will be subject to change as the project develops.

Software

An early version of the software (not yet ready for use, but good enought for shack-based testing) can be found here: https://github.com/BritishAmateurTelevisionClub/atv-rptr

GPIO Connections

An initial list of GPIO connections is here: Repeater GPIO Connections.

Configuring IR Switching

The basic design uses one or 2 IR transmitters to control one or 2 HDMI switches. The exact IR codes for the HDMI switch used on your repeater will need to entered in the configuration file. Full details are here: Configuring IR for HDMI Switching