by Bob Smith
Customized standard 19" rack components for U.S. Coast Guard boat station communication room console.
Custom cut panels accommodate
- Radio section
- flush mount for Motorola Astro P25 encrypted radio
- Motorola speaker
- Microphone hanger
- Icom MB400 Radio hanger
- Applications section
- Fire and SAR alarm activation switches
- Soundboard to pipe signals through station public address system
- Countdown timer to manage patrol communications intervals
Accurately predicts Sunrises, sets and next High / Low Tides at the Station latitude and longitude WITHOUT requiring an internet connection.
Sunrises and sets use Euclidean geometry to precisely calculate the intersection of sun to the horizons at a specific point in space (Lat/Lon) each day.
The tide clock uses NOAA published harmonic constituents, 37 mathematical values representing tidal forces at any moment for specific locations.
30mm SPDT 12V Stainless Steel Latching Push Button Switch Angel Eye Red LED converted to DPDT to accommodate 12v switched indicator light.
Plays U.S. Coast Guard unit bugle calls.
| Call | Wire | Slot | file name |
|---|---|---|---|
| First Call | brown | 1 | 00001.mp3 |
| Reveille | orange | 2 | 00002.mp3 |
| Morning Colors | yellow | 3 | 00003.mp3 |
| Evening Colors | blue | 4 | 00004.mp3 |
| Eight Bells | pink | 5 | 00005.mp3 |
| Mess Call | green | 6 | 00006.mp3 |
| Assembly | white | 7 | 00007.mp3 |
| Taps | purple | 8 | 00008.mp3 |
Pemenol DY-HL30T Audio Playback Module
- 9-24V DC (minimum 9V)
- 30W Class D power amplifier driving 4-8Ω 10-30W speakers
- Trigger interface for up to 9 tracks
- Level inputs: S1 S2 S3 S4 S5 S6 S7 S8 S9 min 0V max 0.3V
- MP3 and WAV audio formats w/ sampling rate up to 48KHz
- SD Micro card slot supporting 32G maximum FAT32 formatted storage
- USB micro data port to access SD Micro card
- Trips warning light externally (warning light voltage should be consistent w/ input voltage)
- 8 trigger modes
- Volume potentiometer
16mm Stainless Steel Push Button Switches
Rack mounted basic countdown timer to set quickly set and manager interval between patrol check-ins, usually 30-minutes or 15-minutes in bad weather or air operations. When complete loud, a loud customized note and duration alarm alerts to next call.
- Set and start 15 or 30-minute countdown using single buttons
- Dial in 1 to 99-minutes using rotary encoder
- Outputs minutes and seconds to 4-digit 7-segment LED display
- Arduino Nano Every
- Adafruit I2C Rotary Encoder Breakout
- Adafruit Rotary Encoder
- TM1637 based 0.56" high 7-segment LED display
- Passive Buzzer Module
- 2 momentary pushbutton switches 16mm Stainless Steel Push Button Switches
- Jack Christensen's JC_Button library v2.1.2
- Adafruit's seesaw library v1.7.0
- Rob Tillaart's CountDown library v0.3.1
- Rob Tillaart's TM1637 library v0.3.7
Prepared by Front Panel Express, LLC
