Rotary Encoder Thing 2
Rotary Encoder Thing 2
A kit for Arduino (Pro Mini) to help learn button debouncing and rotary encoder handling.
This is a soldering kit including an Arduino Pro Mini, five lighted pushbuttons, three rotary encoders, three 2 digit 7 segment displays, eight addressable LEDs, and a speaker. All through-hole parts are used; this is a kit suitable for a beginner. A preprogrammed set of applications including a Safe Cracker game, 99 Hour Countdown Timer, LED Color Chooser, and a couple of sound synthesizers.
Design Documents
| Bill of Material | Encoder Thing 2 BOM.pdf |
| Component Placement Guide | Encoder Thing 2 Placement.gif |
| Interior Wiring | interior big.jpg |
| Schematic Diagram | Encoder Thing 2 Schematic.pdf |
| 3D Print Files | Rotary Thing Base USB.stl |
| PCB Gerbers | Encoder Thing 2 Gerbers i704.zip |
| Source Code | Arduino.zip |
Specifications
| Power Requirement | 5V Micro USB connector |
| Dimensions | 103x103x45 mm (4x4x1.8 in) |
Software: HELLO Menu
- Appears at power on or when the Pro Mini reset button is pressed.
- The dials adjust the display brightness.
- Press one of the buttons to activate a program.
Safe Cracker game
A test of skill game.
- Rotate the first dial left to the first number (listen for the tumbler click)
- Rotate the second dial right to the second number
- Rotate the third dial left to the final number
- Press the lighted pushbuttons to try to open the safe with the combination. You only get 5 tries.
- Difficulty level is randomly selected at start of game. If you can't crack it, Reset and try again.
99 Hour Timer
A countdown timer.
- Dial in the hours, minutes, and seconds
- Press any button to toggle timer run/stop
- It beeps and flashes when the counter reaches zero
LED Color Picker
Easily get the values for the LED color you want.
- Dial in the R, G, B levels with the knobs
- See the result on the 8 addressable LEDs
- Numerical brightness values for R,G,B are displayed in hex
Tone Generator plus Sound Effects
Makes tones plus some sound effects.
- Left knob sets freq X 100
- Middle knob sets freq X 1
- Right knob sets volume
- Buttons play tone; Btn1 is momentary, Btn2 is on/off, Btn3/4/5 are effects
- Knob push up/down an octave
Musical Note Player
A 5 note piano.
- Left knob sets octave
- Middle knob sets note A..G (12 notes)
- Right knob sets volume
- Buttons play base tone + 4 associated tones