Prima support

Prima accessory decoder resources and support.

Find manuals, tutorials and practical help for using Prima with points, servos, LEDs and layout accessories.

Shop Prima Open knowledge base

Manuals restored

Use the latest Prima manual first, with older versions retained for previous firmware and wiring notes.

Tutorial videos restored

Follow the original Prima setup videos and worked examples for accessory control jobs.

Software update

Download the V1.0.2 update files and read the install notes before replacing firmware.

Manuals

V1.1 Prima ManualOpen PDF
V1.0 Prima ManualOpen PDF
V0.5 Alpha ManualOpen PDF

Tutorials

These are the original Prima tutorial videos from the previous support page.

Open video on YouTube

Software updates

V1.0.2 release date: 04/01/22

Download LC2021 update files

This file contains the LC2021Stick software V1.0.2. To install, remove the ESP32 module from the green PCB board and connect your ESP32 Dev Module to the computer USB port. You may need to install USB to UART bridge drivers: https://www.silabs.com/developers/usb-to-uart-bridge-vcp-drivers?tab=downloads Extract the zip file and run update.bat. A black box should show the progress of the update and take a minute or two to complete.

Warning: uploading a new version will overwrite your current board configuration. To avoid this, save the current configuration to your computer first. After uploading the new software version, you can write the previous configuration back to the CMMME Prima.

Product information

Open the full Prima product page.

Support checklist

Prima version and firmware if known.
Accessory type: servo, LED, relay or point motor.
Power supply and wiring photos.
Controller/software used with the layout.