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--- project:maerklin:warnemuende:lighthouse:start [2025/06/10 18:41] – [Introduction] Peter Siegmund
+++ project:maerklin:warnemuende:lighthouse:start [2025/06/12 21:48] (current) – [EDA/ECAD] Peter Siegmund
@@ Line 1: / Line 1: @@
 ====== Mole Beacon ======
-===== Introduction =====
 {{ :project:maerklin:warnemuende:lighthouse:mole_beacon_light.png?200|}}
+===== Introduction =====
 For our Warnemünde section, which includes a water area, we also need a lighthouse so that our ships can travel safely.
 Since Warnemünde has two [[https://de.wikipedia.org/wiki/Molenfeuer_Warnem%C3%BCnde|Mole Beacons]] (one green and one red), I decided to recreate the green beacon light. I did some research and found some good reference images for this project.
 ===== Design =====
-The physical design of the beacon model was a straightforward process, using a high-resolution image of the actual object as a blueprint to ensure accuracy.
+{{:project:maerklin:warnemuende:lighthouse:mole_beacon_light_cut_through.png?200 |}}
+First, I replicated the building in [[software:onshape:start|]]. This was not as easy as I initially thought, but in the end, I was successful.
+The more interesting part was the electronics. I used an [[hardware:esp32:start|]] as the controller and decided to connect it to the [[..:..:system_control:start|]] with my generic BLE system. Then, I tested if I could replicate the beacon signal (2 seconds on and 2 seconds off). It was the first time I had used hardware timers and interrupts for the LEDs. The beacon's LED will illuminate transparent PLA, making the light visible.
+A more challenging part will be the outdoor lights, as the building has two of them. I will try to use 0402 3V LEDs and hope that I can print a miniature enclosure to mimic the real lamps.
-The more significant engineering challenge lay in the internal electronics, which required the design of two custom Printed Circuit Boards (PCBs). A primary constraint was fitting all necessary components within the limited volume of the 3D-printed housing. The core of the illumination system is a WS2812B addressable LED. This component was specifically chosen to illuminate the beacon's main body, which is printed from a transparent material like PLA or PETG. The design intent is for the filament itself to act as a light diffuser, creating an even, vibrant glow throughout the structure.
 ==== MCAD ====
@@ Line 21: / Line 25: @@
 ==== EDA/ECAD ====
-The two PCBs are created within [[software:kicad:start|]]. The rendering of the main (LED) pcb could be seen here. It's as everything else a work in progress.
+The two PCBs are created within [[software:kicad:start|]].
+This is the LED board, with is located a the top within the building. Is has connections to the WS2812B RGB LED and the three outdoor 0402 LEDs, which are within separate housings.
 {{:project:maerklin:warnemuende:lighthouse:light_board_front.png?300|}}
 {{:project:maerklin:warnemuende:lighthouse:light_board_back.png?300|}}
+{{:project:maerklin:warnemuende:lighthouse:light_board_schematics.png?600|}}
 ===== Source Code =====
 [[https://github.com/mars3142/warnemuende_lighthouses|Github]] Action: {{https://github.com/mars3142/warnemuende_lighthouses/actions/workflows/esp32_build.yaml/badge.svg?nocache&.png}}