Roendi (Rotary Encoder with DIsplay) has a STM32L433 MCU, 1.28" TFT round display and a Alps Alpine 15Pulses/ 30Detent encoder. It can be programed by using ST-LINK/V2 or Arduino IDE, and is open source & open hardware. This rotary encoder is suitable for integration into projects as a unique user interface, or can be used as standalone development board. All pins that not used by the encoder are broken out to the peripheral of the board.

Roendi is a great interface for many kinds of uses, such as volumn control, temperature control and light control. It is useful addition to home automation sysytems and would make a unique custom HID device.

Features & Specifications

• MCU: STM32L433 with USB and RTC
• Display: Round 1.28" TFT LCD Display
• Rotary Encoder: 15 Pulses / 30 Detent
• NOR Flash: 128 Mbits
• LDO: 3 V 400 mA
• Open source / Open hardware
• Aluminum or 3D printed body. CAD files will be available for custom prints.
• Can be programmed with STM32CubeIDE 1.6.1 or Arduino IDE

Open Source

Roendi is open source. You can find schematics, pinouts, demo software, enclosure CAD files and more on GitHub.

^{The project is going to be crowdfunded on CrowdSupply, go to support it if you are interested.}