CTR2 2026 Product Line
2025 in Review I’m the first to admit that CTR2 products have gotten confusing over the years. At the first of 2025, I introduced CTR2-Dial, a MIDI controller based on…
User Photos and Videos
This post showcases some of the interesting photos and videos CTR2 users have sent me. I hope you’ll find some inspiration here and maybe share your configurations with me. NOTE:…
CTR2-MIDI Configuration Files – v1.0
Updated: January 23, 2026 All CTR2 MIDI controllers (running CTR2-MIDI MIDI firmware), must be configured to match the MIDI map of the app they are controlling. Typically, you’ll need to…
CTR2-Quad Assembly Manual – v1.0
This manual provides instructions for assembling the CTR2-Quad Upgrade Kit. This kit is intended for customers that already own an M5Dial controller, or want to upgrade from older CTR2-Dial or…
CTR2-Quad Hardware Manual – v1.01
M5Dial based CTR2 hardware is available in three different configurations. All three variations run the CTR2-Flex firmware that provides direct control of your Flex radio over WiFi using the Flex…
CTR2-Duo Hardware Manual – v1.00
M5Dial based CTR2 hardware is available in three different configurations. All three variations run the CTR2-Flex firmware that provides Bluetooth/USB MIDI control for third-party apps like SmartSDR for iOS, SDR-Control,…
CTR2-Uno Hardware Manual – v1.00
M5Dial based CTR2 hardware is available in three different configurations. All three variations run the CTR2-Flex firmware that provides Bluetooth/USB MIDI control for third-party apps like SmartSDR for iOS, SDR-Control,…
CTR2-Duo
CTR2-Duo is a two-knob controller based on the M5Dial from M5Stack. It was originally branded CTR2-Flex and optioned with two knobs. To minimize confusion, the two-knob CTR2-Flex was rebranded as…
CTR2-Uno
CTR2-Uno is a single knob controller based on the M5Dial from M5Stack. It was originally branded CTR2-Flex. To minimize confusion, the single-knob CTR2-Flex was rebranded as CTR2-Uno to differentiate it…