add BOMs, better lighting for 3d.js vrml

docs/src/js/3d.js

     controls.enableDamping = true;
     controls.autoRotate = true;
 
+    for (const i of [1, -1]) {
+        for (const j of [0, 1, 2]) {
+            const light = new THREE.DirectionalLight(0xffffff, 0.5);
+            light.position.set(i * (j == 0 ? 1 : 0),
+                                i * (j == 1 ? 1 : 0),
+                                i * (j == 2 ? 1 : 0));
+            scene.add(light);
+        }
+    }
+
     if (path.endsWith(".stl")) {
         const light_amb = new THREE.AmbientLight(0x424242);
         scene.add(light_amb);
 
-        for (const i of [1, -1]) {
-            for (const j of [0, 1, 2]) {
-                const light = new THREE.DirectionalLight(0xffffff, 0.5);
-                light.position.set(i * (j == 0 ? 1 : 0),
-                                   i * (j == 1 ? 1 : 0),
-                                   i * (j == 2 ? 1 : 0));
-                scene.add(light);
-            }
-        }
-
         const material = new THREE.MeshStandardMaterial();
         //material.roughness = 0.75;
 

docs/src/pcb1.md

 [![assembled prototype](https://www.xythobuz.de/img/lars_10_small.jpg)](https://www.xythobuz.de/img/lars_10.jpg)
 
 You can also [download the Gerber files to order PCBs online](./plot/fab_pcb.zip).
+
+## Bill of Materials
+
+These are all the parts required to assemble the prototype.
+
+| ID | Type | Link |
+| -- | ---- | ---- |
+| U9 | Raspberry Pi Pico | [Reichelt.de](https://www.reichelt.de/raspberry-pi-pico-rp2040-cortex-m0-microusb-rasp-pi-pico-p295706.html?&nbc=1), [Amazon.de](https://www.amazon.de/Raspberry-Pi-Pico/dp/B09KVB8LVR) |
+| U2 | TP4056 Charger Module | [Amazon.de](https://www.amazon.de/AZDelivery-%E2%AD%90%E2%AD%90%E2%AD%90%E2%AD%90%E2%AD%90-TP4056-Laderegler-Lithium/dp/B07D2G345P) |
+| U4, U6, U8 | MOSFET Module N-Channel | [Amazon.de](https://www.amazon.de/Schaltersteuerplatine-Motorsteuerplatine-MOSFET-Triggerschalter-Reglersteuerplatine-Dual-Hochleistungs/dp/B0CBK7D1GD) |
+| U3, U5, U7 | Step-Up Converter Module | [Amazon.de](https://www.amazon.de/Converter-Spannungswandler-LAOMAO-Netzteil-Kompatibel/dp/B0B932BR7V) |
+| J2 | SSD1306 128x64 0.96" Display | [Amazon.de](https://www.amazon.de/AZDelivery-Display-Arduino-Raspberry-gratis/dp/B01L9GC470) |
+| S1 | ALPS EC12E24244 | [Reichelt.de](https://www.reichelt.de/drehimpulsegeber-24-impulse-24-rastungen-vertikal-stec12e08-p73923.html?&nbc=1) |
+| D1 - D4 | LED 5mm | [Reichelt.de](https://www.reichelt.de/led-5mm-bedrahtet-rot-450-mcd-90--5603r1c-khb-a-p361958.html?&nbc=1) |
+| D5 - D8 | 1N5819 Schottky Diode | [Reichelt.de](https://www.reichelt.de/schottkydiode-40-v-1-a-do-41-1n-5819-p41850.html?&nbc=1) |
+| R1 - R4 | Resistor 1k Ohm | [Reichelt.de](https://www.reichelt.de/widerstand-metallschicht-1-00-kohm-0207-0-6-w-1--metall-1-00k-p11403.html?&nbc=1) |
+| R5 | Resistor 10k Ohm 0.1% Axial | [Reichelt.de](https://www.reichelt.de/widerstand-metallschicht-10-kohm-0207-0-6-w-0-1--mpr-10-0k-p12770.html?&nbc=1) |
+| R6 | Resistor 18k Ohm 0.1% Axial | [Reichelt.de](https://www.reichelt.de/widerstand-metallfilm-18-kohm-0-1-0-6-w-tk25-0207-mpr-18-0k-p12837.html?&nbc=1) |
+| SW1 - SW4 | 12mm waterproof stainless steel push button | N/A |
+| SW5A | Unknown Power Switch | N/A |

docs/src/pcb2.md

 # LARS V2
 
-**TODO** this is a work in progress
+This is the second iteration of the hardware.
+The principle is the same as for the prototype, with the same chinese modules used.
+Only the buttons have been changed, and there are now 9 of them, with 8 LEDs.
+The battery is now mounted on the board.
+It is planned to be used without a case.
 
 You can [download the Gerber files to order PCBs online](./plot/fab_pcb2.zip).
+
+## Bill of Materials
+
+These are all the parts required to assemble the V2 PCB.
+
+| ID | Type | Link |
+| -- | ---- | ---- |
+| U1 | Raspberry Pi Pico | [Reichelt.de](https://www.reichelt.de/raspberry-pi-pico-rp2040-cortex-m0-microusb-rasp-pi-pico-p295706.html?&nbc=1), [Amazon.de](https://www.amazon.de/Raspberry-Pi-Pico/dp/B09KVB8LVR) |
+| U2 | TP4056 Charger Module | [Amazon.de](https://www.amazon.de/AZDelivery-%E2%AD%90%E2%AD%90%E2%AD%90%E2%AD%90%E2%AD%90-TP4056-Laderegler-Lithium/dp/B07D2G345P) |
+| U3 - U5 | MOSFET Module N-Channel | [Amazon.de](https://www.amazon.de/Schaltersteuerplatine-Motorsteuerplatine-MOSFET-Triggerschalter-Reglersteuerplatine-Dual-Hochleistungs/dp/B0CBK7D1GD) |
+| U6 - U8 | Step-Up Converter Module | [Amazon.de](https://www.amazon.de/Converter-Spannungswandler-LAOMAO-Netzteil-Kompatibel/dp/B0B932BR7V) |
+| OLED1 | SSD1306 128x64 0.96" Display | [Amazon.de](https://www.amazon.de/AZDelivery-Display-Arduino-Raspberry-gratis/dp/B01L9GC470) |
+| BT1 | Keystone 1042 | [Reichelt.de](https://www.reichelt.de/batteriehalter-fuer-1-18650-keystone-1042-p213369.html?&nbc=1) |
+| S1 | APEM 5236AB | [Reichelt.de](https://www.reichelt.de/kippschalter-1a-250vac-1x-ein-ein-printanschluss-as-500apc-p4396.html?&nbc=1) |
+| SW1 | ALPS EC12E24244 | [Reichelt.de](https://www.reichelt.de/drehimpulsegeber-24-impulse-24-rastungen-vertikal-stec12e08-p73923.html?&nbc=1) |
+| SW2 - SW10 | DIP 6x6mm push button | [Reichelt.de](https://www.reichelt.de/kurzhubtaster-printmontage-1-schliesser-6-x-6-x-5-mm-dip-dts-62k-v-p360043.html?&nbc=1) |
+| D1 - D4 | 1N5819 Schottky Diode | [Reichelt.de](https://www.reichelt.de/schottkydiode-40-v-1-a-do-41-1n-5819-p41850.html?&nbc=1) |
+| D5 - D12 | LED 5mm | [Reichelt.de](https://www.reichelt.de/led-5mm-bedrahtet-rot-450-mcd-90--5603r1c-khb-a-p361958.html?&nbc=1) |
+| R1 | Resistor 10k Ohm 0.1% Axial | [Reichelt.de](https://www.reichelt.de/widerstand-metallschicht-10-kohm-0207-0-6-w-0-1--mpr-10-0k-p12770.html?&nbc=1) |
+| R2 | Resistor 18k Ohm 0.1% Axial | [Reichelt.de](https://www.reichelt.de/widerstand-metallfilm-18-kohm-0-1-0-6-w-tk25-0207-mpr-18-0k-p12837.html?&nbc=1) |
+| R3 - R10 | Resistor 1k Ohm | [Reichelt.de](https://www.reichelt.de/widerstand-metallschicht-1-00-kohm-0207-0-6-w-1--metall-1-00k-p11403.html?&nbc=1) |

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