Download CTR2-MIDI Firmware – v2.01.00
Download the latest CTR2-MIDI firmware for CTR2-MDI and CTR2-Micro here
CTR2-Flex/CTR2-Dial Dual-Boot Firmware v2.05.00
The new CTR2-Flex v2 firmware allows you to boot either CTR2-Flex or CTR2-Dial firmware without re-flashing your CTR2 controller.
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 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…
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…
CTR2-Flex – Now CTR2-Uno and CTR2-Duo
January 1, 2026 Update To simplify the CTR2 product line, CTR2-Flex hardware is being rebranded. The one and two knob hardware is exactly the same as before, but with new…
QST and QEX Article Reprints
ARRL has graciously published several of my articles covering several of my products. Read them here.