CTR2-Quad Hardware Manual – v1.02
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 – v1.01
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 – v1.01
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,…
Download CTR2-MIDI Firmware – v2.01.01
Download the latest CTR2-MIDI firmware for CTR2-MDI and CTR2-Micro here
CTR2-Dial Configuration Files – March 4, 2026
Find the map and configuration files you need for CTR2-MIDI and CTR2-Dial here
ESPConnect Browser-Based Flash Tool
thelastoutpostworkshop has released a new browser-based tool called ESPConnect that allows you to flash firmware to an ESP32 microcontroller without the need to download and install the EspressIF Flash Download…
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…