[NDCOslo2024] Building a Robot Arm with .NET 8, Raspberry Pi, Blazor and SignalR – Peter Gallagher
Amid the mesmerizing merger of microcontrollers and modern markup, Peter Gallagher, a prolific .NET pioneer and podcast personality, prototypes a pivotal plaything: a prehensile prosthesis powered by Pi, .NET 8, Blazor’s bounty, and SignalR’s synergy. As the mind behind “The .NET Core Podcast” and a maestro of minimal viable marvels, Peter parades the panoply—from GPIO gymnastics to VR vistas—proving platform potency in playful pursuits. His hands-on homage, humming with hardware harmony, heralds hobbyists to harness high-level harmony for haptic happenings.
Peter polls the populace: Raspberry aficionados abound, yet arm artisans are scarce—his spur to share schematics, sans soldering sermons. .NET 8’s native nod to ARM architectures animates accessibility, eclipsing esoteric embeds.
Wiring the Wonder: GPIO and Servo Symphonies
Genesis germinates in GPIO groundwork: Pi’s pins, PWM-proficient, pulse servos to swivel shoulders, elbows, wrists. Peter parades the paraphernalia: SG90 servos, jumper joys, breadboard bastions—budget below 50 quid.
Code commandeers: Iot.Device.Bindings beckon, Servo class summoning sweeps—angle aspirations from 0 to 180. Peter’s prototype: console commands calibrating claws, clutching candies in cinematic clips.
Blazor’s Bridge: Browser-Borne Brawn
Blazor bridges the breach: WebAssembly wielding webcams, SignalR streaming signals—real-time relays routing remote reaches. Peter’s portal: Razor renders ranges, sliders summoning servo shifts; hubs herald hubbub, harmonizing host and handler.
He highlights hitches: CORS courtesies, container conundrums—Pi’s paucity of ports prompting proxies. Yet, yields yield yawns: yawns of yawp, where web wielders wrench wrenches wirelessly.
VR’s Vanguard: Questing for Quarters
Quest 3 quests quaternary: Unity unleashes OpenXR, hand-tracking hailing haptics—gestures grasping grippers. Peter’s phantasm: VR viewport voyaging Pi’s panorama, passthrough peering at prehensile prowess.
Integration ignites: SignalR surges selections, servos saluting salutes—synthetic senses simulating seizures. Peter’s plea: print, procure, partake—his GitHub grotto granting guides.
Horizons of Hardware: Harmonizing Hopes
Peter’s panegyric: .NET’s ubiquity unlocks universes—embedded epics, VR ventures—vitalizing visions. His valediction: venture ventures, validate validations—birthday bonuses beckon bold builders.