Project Objective: Develop an open source AIS Alarm that alerts sailors that a new marine vessel with AIS is within range
Two boards have been populated and tested now and everything seems to be working. This update will cover thoughts on the PCB, faceplate design for the enclosure, and an update on the firmware.
I am satisfied with the PCB for the most part now but will decrease the drill hole size for the LED as the fit is a little loose. Three different buzzers were tested and while all were satisfactory the one with the highest pitch seemed the most annoying and so that is the one I will use.
Here is the design for the enclosure face plate:
I had an extra dAISy blank plate for the enclosure and made a prototype with my drill press to make sure the dimensions were correct. The plates will be fabricated by the PCB manufacturer.
The firmware features have now been tested individually but not completely integrated. My chosen process is to add features one at a time and test before moving on.
Next up:
- Order faceplates, parts, and PCBs for a run of 10 or so boards
- Continue work on firmware
Past Posts from this Project:
AIS Alarm - Prototype Hardware
AIS Alarm - Prototype Code Outline
AIS Alarm - First AIS Messages
AIS Alarm - First FRAM Storage
AIS Alarm - Debouncing Momentary Button Switches
AIS Alarm - PCB Version 0.1 Arrived
AIS Alarm - PCB Version 0.2 Populated
References and Links:
WEGMATT LLC - dAISy AIS Receiver - low cost AIS receiver
Texas Instruments MSP430FR2xx FRAM Microcontrollers - Post No. 4
Top Comments