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AC/DC Multifunction Smart Charger

Hitec’s RDX line of battery chargers continues with the introduction of the RDX2 200 AC/DC multifunction smart charger. Capable of charging two batteries simultaneously regardless of chemistry or capacity, the RDX2 200 allows you to connect different battery chemistries (NiMH/NiCd/LiPo/LiFe/Lilo/LiHV/Pb) into any of the two charging ports (100W per port, 200W total power), and features integrated balancing for six-cell LiPo batteries.

Designed with an easy-to-read LCD screen and sleek metal scroll wheel for simple setting selection, this twin-channel charger is also compatible with Hitec’s “Charge Manager” PC and Mac software that allows charger operation and firmware updates from a PC. Whether you run sport-level 1/10th and 1/8th scale electric vehicles, 600+ size helicopters, or sport and giant-scale planes using up to 6S batteries, the RDX2 200 is a compact, affordable charging option for your hobby.

Estimated street price is $129.99. Dimensions are 4.6 x 4.3 x 3.1; weight is 1.04 lb.

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Hitec RCD

4-in-1 Modular RC Kit

A new kit from OWI, Inc., that will add to your “interstellar space” adventures features the AI SmartCore 4. The kit offers four separate modular smart vehicles: All-Terrain Cube, Super Snake, Titan Tank, and Turbo Trike. The AI 4 is a second generation SmartCore with updated and reinforced wire connectors, easy-to-follow instructions, and, of course, AI SmartCore technology.

With 42 easy to snap together parts, tomorrow’s innovators will learn the STEM principals associated with physics and electronics when young budding engineers 8+ build and remix the AI SmartCore 4.

The magic of AI SmartCore 4 lies within OWI’s revolutionary AI SmartCore technology. When connected to one of the four vehicles, OWI’s AI SmartCore acts as a digital brain using a patented algorithm that evaluates the best way to control each vehicle. 

It allows the All-Terrain Cube to navigate directions with balance and predictability; it enables the Super Snake to entertain the most curious of four- and two-legged friends; the AI SmartCore empowers the Turbo Trike to cruise at high speeds while maintaining control; and transforms the Titan Tank into a roving explorer.

Best of all, the OWI SmartCore automatically pairs with the remote control, so operation is straightforward. With a built-in quick charging LiPo battery and USB charging cable included, recharging the AI SmartCore 4 is effortless. Retail price is $43.95.

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Economical 5-1/2 Digit Digital Multimeters

Saelig Company, Inc. , now has available the Rigol DM858/DM858E Digital Multimeter Series, which provides cost-effective benchtop test measurement capabilities for electronics technicians.

They feature 5.5-digit resolution, a maximum of 125/80 readings/s, a data logging memory of 500,000/20,000 points, and 0.03%/0.06% DCV accuracy (one year).

Eleven measurement functions are available for input signals, including DCV, DCI, ACV, two-/four-wire resistance, frequency, period, continuity, diode, capacitance, and sensor measurements, as well as five math operations and three graphical display types.

The gesture-sensing 7’’ capacitive color touch screen allows a dual display of measurement results which can also be seen as trend plots, histograms, and bar charts. These instruments feature USB and LAN interfaces, as well as web control capabilities for handling the instrument. They are equipped with a Type-C interface for power input.

In addition, their compact size and light weight support the attachment to a bracket or movable arm for saving valuable operating bench space. DM858/DM858E features include:

  • Maximum reading rate: 125/80 readings/
  • Up to 500,000/20,000 points of logged memory
  • 5-1/2 digit measurement resolution
  • True-RMS AC voltage and AC current measurements
  • Max. current measurement: 10/3A
  • Max. capacitance measurement: 10/1 mF
  • Built-in 10 groups of data storage and 10 groups of setup storage
  • Strong math functions, supporting various application protocols
  • Seven inch color touch screen, displaying dual-measurement results concurrently
  • Type-C interface for power input
  • Compact size and movable arm mounting frees up bench space
  • Standard USB and LAN interfaces support web control

Pricing starts at $369.

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Fine-Adjust Step-Down Voltage Regular

The D30V3x line of synchronous buck (step-down) voltage regulators now available from Pololu generates lower output voltages from input voltages as high as 45V. These are switching regulators (also called switched-mode power supplies [SMPS] or DC-to-DC converters) which makes them much more efficient than linear voltage regulators, especially when the difference between the input and output voltage is large.

These regulators can typically support continuous output currents between 1A and 4A, depending on the input voltage and output voltage. In general, the available output current decreases as the input and output voltages increase.

This line consists of the D30V30Fx family of fixed output voltages ranging from 3.3V to 15V, and two families of adjustable versions that allow the output voltage to be set with a precision 11-turn potentiometer.

Each adjustable option is available with or without an adjustable low-voltage cutoff (also set through a precision 11-turn potentiometer on the versions that have it).

The adjustable families are the D30V30MAx, which is the more compact of the two thanks to its double-sided assembly, and the D30V33MAx, which includes larger through-holes for terminal blocks and can do slightly more current thanks to its larger surface area. Single unit pricing starts at $17.95.

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