Team 2: Hoard Robotics

1. Team 2: Hoard Robotics Jamis Martin Trenton Andres Jay Zifer Brad Nowak

2. Project Overview • The goal of the project is to develop a team of robots that will utilize swarm behavior to accomplish tasks • Robots are designed to be autonomous, therefore harm to user is unlikely • Failures could cause harm to themselves

3. Critical Components • Ambient Light Sensors • Voltage Regulator • H Bridge • PIC18J26F13

4. Ambient Light Sensors (TEMPT4400) • They may be operating very close to hot light bulbs • There is opportunity for them to overheat • Could become damaged from collisions • λp = λo*πq*πe*πt • λp = .004*5.5*4.0*1.6 • λp = .1408

5. Mode, Effect, and Criticality • The robot would no longer recognize any ambient light • Little effect on rest of system • Low criticallity

6. H Bridge (L298) • Controlling our motors • Potential to become hot • Collision damage potential • λp = (C1*πt + C2*πe)*πq*πl • λp = (.01*.19 + .0056*4.0)*10*1.0 • λp = .2259

7. Mode, Effect, and Criticality • Motors could stop working, or always be on • Could cause collisions, harming other parts in system • Low criticality

8. Voltage Regulator (MCP1802) • Managing battery power • It will become hot • Collision damage potential • λp = (C1*πt + C2*πe)*πq*πl • λp = (.01*1.9+.0019*4.0)*10*1.0 • λp = .095

9. Mode, Effect, Criticality • The robot will likely stop altogether • Other parts are at high risk due to unwanted voltage levels • Low Criticality

10. PIC18J26F13 Microcontroller • It could suffer heat damage • Collision damage • λp = (C1*πt + C2*πe)*πq*πl • λp = (.14*5.0+.01*4.0)*10*1.0 • λp = 7.4

11. Mode, Effect, Criticality • Robot will cease to function as intended. Could cause LED failures, irregular motor behavior, strange packets or none at all, etc. • Could cause collisions, damaging other parts in system • Low criticality

12. Questions? ?