feat: remove RiscVBoard references and related code from various components

frontend/src/components/ComponentPickerModal.tsx

@@ -16,7 +16,6 @@ import type { BoardKind } from '../types/board';
 import { BOARD_KIND_LABELS } from '../types/board';
 import raspberryPi3Svg from '../assets/Raspberry_Pi_3_illustration.svg';
 import { Attiny85 } from './components-wokwi/Attiny85';
-import { RiscVBoard } from './components-wokwi/RiscVBoard';
 import './components-wokwi/Esp32Element';        // registers wokwi-esp32
 import './components-wokwi/PiPicoWElement';      // registers wokwi-pi-pico-w
 import './ComponentPickerModal.css';
@@ -46,19 +45,6 @@ const BOARD_DESCRIPTIONS: Record<BoardKind, string> = {
   'xiao-esp32-c3':      'Seeed XIAO ESP32-C3 mini board (QEMU)',
   'aitewinrobot-esp32c3-supermini': 'ESP32-C3 SuperMini (QEMU)',
   'attiny85':           '8-bit AVR, 8KB flash, 6 GPIO (browser)',
-  'riscv-generic':      'RV32EC 48 MHz, 16KB flash, CH32V003 (browser)',
-};
-
-const BOARD_COLOR: Record<BoardKind, string> = {
-  'arduino-uno': '#4af', 'arduino-nano': '#4af', 'arduino-mega': '#4af',
-  'raspberry-pi-pico': '#4af', 'pi-pico-w': '#4af',
-  'raspberry-pi-3': '#c22',
-  'esp32': '#e8a020', 'esp32-devkit-c-v4': '#e8a020', 'esp32-cam': '#e8a020',
-  'wemos-lolin32-lite': '#e8a020',
-  'esp32-s3': '#e8a020', 'xiao-esp32-s3': '#e8a020', 'arduino-nano-esp32': '#4af',
-  'esp32-c3': '#e8a020', 'xiao-esp32-c3': '#e8a020',
-  'aitewinrobot-esp32c3-supermini': '#e8a020',
-  'attiny85': '#4af', 'riscv-generic': '#4a4',
 };
 
 const ALL_BOARDS: BoardKind[] = [
@@ -67,7 +53,7 @@ const ALL_BOARDS: BoardKind[] = [
   'esp32', 'esp32-devkit-c-v4', 'esp32-cam', 'wemos-lolin32-lite',
   'esp32-s3', 'xiao-esp32-s3', 'arduino-nano-esp32',
   'esp32-c3', 'xiao-esp32-c3', 'aitewinrobot-esp32c3-supermini',
-  'attiny85', 'riscv-generic',
+  'attiny85',
 ];
 
 export const ComponentPickerModal: React.FC<ComponentPickerModalProps> = ({
@@ -365,7 +351,7 @@ const BoardCard: React.FC<BoardCardProps> = ({ kind, onSelect }) => {
   React.useEffect(() => {
     if (!thumbnailRef.current) return;
     // React-rendered boards and Pi3 handled in JSX below
-    if (kind === 'raspberry-pi-3' || kind === 'attiny85' || kind === 'riscv-generic') return;
+    if (kind === 'raspberry-pi-3' || kind === 'attiny85') return;
 
     const tag = BOARD_TAG[kind];
     if (!tag) return;
@@ -389,10 +375,6 @@ const BoardCard: React.FC<BoardCardProps> = ({ kind, onSelect }) => {
       <div style={{ transform: 'scale(0.55)', transformOrigin: 'center center' }}>
         <Attiny85 />
       </div>
-    ) : kind === 'riscv-generic' ? (
-      <div style={{ transform: 'scale(0.42)', transformOrigin: 'center center' }}>
-        <RiscVBoard />
-      </div>
     ) : null;
 
   return (

frontend/src/components/simulator/BoardOnCanvas.tsx

@@ -7,7 +7,6 @@ import { NanoRP2040 } from '../components-wokwi/NanoRP2040';
 import { RaspberryPi3 } from '../components-wokwi/RaspberryPi3';
 import { Esp32 } from '../components-wokwi/Esp32';
 import { Attiny85 } from '../components-wokwi/Attiny85';
-import { RiscVBoard } from '../components-wokwi/RiscVBoard';
 import { PiPicoW } from '../components-wokwi/PiPicoW';
 import { PinOverlay } from './PinOverlay';
 
@@ -32,7 +31,6 @@ const BOARD_SIZE: Record<string, { w: number; h: number }> = {
   'xiao-esp32-c3':      { w:  91, h: 117 },
   'aitewinrobot-esp32c3-supermini': { w: 90, h: 123 },
   'attiny85':      { w: 160, h: 100 },
-  'riscv-generic': { w: 200, h: 140 },
 };
 
 interface BoardOnCanvasProps {
@@ -89,8 +87,6 @@ export const BoardOnCanvas = ({
         return <Esp32 id={id} x={x} y={y} boardKind={boardKind} />;
       case 'attiny85':
         return <Attiny85 id={id} x={x} y={y} led1={led13} />;
-      case 'riscv-generic':
-        return <RiscVBoard id={id} x={x} y={y} ledBuiltIn={led13} />;
     }
   })();
 

frontend/src/components/simulator/Oscilloscope.tsx

@@ -66,8 +66,6 @@ function getPinsForBoardKind(boardKind: BoardKind): { pin: number; label: string
     case 'xiao-esp32-c3':
     case 'aitewinrobot-esp32c3-supermini':
       return Array.from({ length: 22 }, (_, i) => ({ pin: i, label: `GPIO${i}` }));
-    case 'riscv-generic':
-      return Array.from({ length: 20 }, (_, i) => ({ pin: i, label: `D${i}` }));
     case 'raspberry-pi-3':
       return Array.from({ length: 28 }, (_, i) => ({ pin: i, label: `GPIO${i}` }));
     default:

frontend/src/store/useSimulatorStore.ts

@@ -176,8 +176,6 @@ function createSimulator(
     sim = new AVRSimulator(pm, 'mega');
   } else if (boardKind === 'attiny85') {
     sim = new AVRSimulator(pm, 'tiny85');
-  } else if (boardKind === 'riscv-generic') {
-    sim = new RiscVSimulator(pm);
   } else if (boardKind === 'raspberry-pi-pico' || boardKind === 'pi-pico-w') {
     sim = new RP2040Simulator(pm);
   } else if (isRiscVEsp32Kind(boardKind)) {

frontend/src/types/board.ts

@@ -15,8 +15,7 @@ export type BoardKind =
   | 'esp32-c3'                    // RISC-V RV32IMC, browser emulation (Esp32C3Simulator)
   | 'xiao-esp32-c3'               // Seeed XIAO ESP32-C3, browser emulation (Esp32C3Simulator)
   | 'aitewinrobot-esp32c3-supermini' // ESP32-C3 SuperMini, browser emulation (Esp32C3Simulator)
-  | 'attiny85'                    // AVR ATtiny85, browser emulation (avr8js)
-  | 'riscv-generic';              // RV32I generic MCU (CH32V003 target), browser emulation
+  | 'attiny85';                   // AVR ATtiny85, browser emulation (avr8js)
 
 export interface BoardInstance {
   id: string;                   // unique in canvas, e.g. 'arduino-uno', 'raspberry-pi-3'
@@ -49,7 +48,6 @@ export const BOARD_KIND_LABELS: Record<BoardKind, string> = {
   'xiao-esp32-c3':  'XIAO ESP32-C3',
   'aitewinrobot-esp32c3-supermini': 'ESP32-C3 SuperMini',
   'attiny85':       'ATtiny85',
-  'riscv-generic':  'RISC-V RV32 (CH32V003)',
 };
 
 export const BOARD_KIND_FQBN: Record<BoardKind, string | null> = {
@@ -70,5 +68,4 @@ export const BOARD_KIND_FQBN: Record<BoardKind, string | null> = {
   'xiao-esp32-c3':  'esp32:esp32:XIAO_ESP32C3',
   'aitewinrobot-esp32c3-supermini': 'esp32:esp32:esp32c3',
   'attiny85':       'ATTinyCore:avr:attinyx5:chip=85,clock=internal16mhz',
-  'riscv-generic':  null,
 };

frontend/src/utils/boardPinMapping.ts

@@ -146,7 +146,7 @@ export const BOARD_COMPONENT_IDS = [
   'esp32', 'esp32-devkit-c-v4', 'esp32-cam', 'wemos-lolin32-lite',
   'esp32-s3', 'xiao-esp32-s3', 'arduino-nano-esp32',
   'esp32-c3', 'xiao-esp32-c3', 'aitewinrobot-esp32c3-supermini',
-  'attiny85', 'riscv-generic',
+  'attiny85',
 ];
 
 /**