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| Level 1 Category | Level 2 Item | Parameter Description |
|---|---|---|
| I. Basic Product Information | Full Product Name | Triangle Piano Course Package |
| Manufacturer | BIT-TREE CREATIVITY (Bit-Tree, Integrated Supplier of Science Education Kits & Courses) | |
| Overall Dimension | 146mm×145mm×85mm (Outer dimension of complete model) | |
| Product Positioning | STEAM dual-subject teaching kit integrating music & programming; training equipment for primary & secondary maker classrooms and after-school clubs. Universally compatible with BIT.U1 / BIT.S3 mainboards in the series. | |
| Power Supply | DC 5V power supply; three power options: USB data cable, 5V power adapter, power bank | |
| II. Hardware Configuration Parameters | Key Layout | Total 19 keys, including full standard musical scale + 8 semitone keys. Compared with the basic 2-in-1 ultrasonic piano, more keys provide wider range. |
| Core Sensing Component | Equipped with ultrasonic ranging module, dual-mode trigger: ① Play sound via physical key pressing ② Contactless ultrasonic piano playing (retains core functions of original 2-in-1 piano) | |
| Sound Module | Built-in passive / active speaker, supports FM frequency synthesis sound effect, capable of simulating tones of various musical instruments | |
| Mainboard Compatibility | Compatible with BIT.U1 (ATmega328P, Arduino architecture) and BIT.S3 (ESP32) official development boards. Shares unified hardware development system with password box, smart trash can and traffic light kits. | |
| Structural Technology | Modular assembly structure, plastic + acrylic housing with pre-assembled parts. Low assembly difficulty, suitable for independent assembly by beginners. | |
| III. Product Function Parameters | Playing Function | 19 keys covering full scale and semitones, supports complete music performance with multi-octave range, compatible with pop music and simple piano pieces. |
| Tone Function | Adopts FM frequency synthesis technology. Programmable to switch simulated instrument sounds (piano, violin, organ, etc.) and customize tone parameters. | |
| Dual Control Modes |
1. Physical Key Mode: Press keys to trigger corresponding notes
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| Expandable Programmable Functions | Program supports custom tuning arrangement, pitch, tempo and accompaniment effects; expandable functions including recording and loop playback | |
| IV. Programming & Course Parameters | Development Environment |
1. Graphical Programming: Mixly block coding
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| Programming Knowledge Points |
1. Basic Syntax: Variables, data types, sequence / branch / loop logic
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| Course Difficulty | Low hardware assembly difficulty. Beginner-friendly sample codes, progressive advanced programs for tone adjustment and contactless playing. | |
| Ability Cultivation | Music theory cognition, circuit wiring practice, audio programming logic, sensor application and music programming creation capability | |
| V. Supporting Teaching Resources | Supporting Materials | Original wiring diagrams, entry source codes (basic piano program + ultrasonic contactless playing program + multi-tone FM synthesis program) and teaching plans |
| Applicable Courses | Integrated kids programming & music enlightenment courses, realizing two-way teaching of programming and music theory |
