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York Jong

ROBOT BATTERIES - 0 views

www.societyofrobots.com/batteries.shtml

alkaline battery fuel-cell lead-acid li nicd nimh robot

shared by York Jong on 14 Jun 07 - Cached
  • Motorcycle lead acid batteries work great for larger low performance type robots. They are great for solar power robots too.
  • lead acid batteries have the serious problem of being very large and heavy, need to always be kept charged, and do not have the high discharge rates as the more modern batteries.
  • They have low power capacities, are heavy, have trouble supplying large amounts of current in short time periods, and get expensive to constantly replace
  • ...6 more annotations...
  • Li-ion batteries have the same high energy capacity as NiMHs, power output rates of NiCads, and weigh about 20%-35% less. They also have zero memory effect problems, meaning you can recharge whenever
  • NiCad (Nickel Cadmium) batteries are good for small to medium size range robots. They have the highest current output, are more affordable than NiMH's, and can be recharged within one or two hours
  • A NiCad, over many charges, can only store less and less energy after each recharge. To prevent memory effect, whenever you wish to recharge your NiCad, you must first fully discharge it.
  • NiCad batteries contain toxic cadmium stuff, so save a squirrel and recycle/dispose of it properly.
  • NiMH battaries can last many more cycles than your typical NiCad battery.
  • they have good current output, and have the highest energy capacity. I would recommend them for small size robots and for powering circuits. Note, NiMH batteries usually take like 10 hours to recharge depending on various factors.
York Jong

Trossen Robotics Offers Pleo Preorder - 0 views

pleobot.com/...-robotics-offers-pleo-preorder

calebchung pleo robot toy

shared by York Jong on 12 Aug 07 - Cached
  • Pleo Technical Specs: Ugobe LifeOS 32 bit Atmel ARM 7 microprocessor - The main processor for Pleo 16 bit sub processor - The processor dedicated to the camera system (4) 8 bit processors that provide the low-level motor control for the servos (35) Sensors including a camera custom designed to fit into Pleo’s very compact body. (4) foot-switches to detect footfalls and being picked up - assists with spatial orientation. (12) capacitive touch sensors (4) legs, (4) feet, back, shoulder, head, chin (2) microphones for directional sound detection (14) “Force” sensors, one per servo, to recognize abuse through force feedback joints. Orientation/tilt sensor IR transceiver for bidirectional data communication with other Pleos. IR interrupter for detection of objects in Pleo’s mouth (14) motors. Standard low voltage DC motors (150) gears and clutches Rechargeable NiMH battery pack USB port with mini USB connector SD/MMC memory card slot
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