Download CTR2-Micro Firmware – v1.08.00
Download the latest firmware for your CTR2-Micro here
CTR2-Micro Operation Manual – v1.08.00
You can read or download the Operation Manual for the new CTR2-Micro here
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,…
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…
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-Dial Firmware
CTR2-Dial is an enhanced version of CTR2-MIDI with a color touchscreen display. It is designed to send MIDI commands to a 3rd-party radio control app, such as Marcus’ (DL8MRE) excellent…
CTR2-MIDI Assembly Manual – v1.00d
The CTR2-MIDI kit is an easy to build project that you can complete in one evening