The iMAX-B6AC can charge and discharge NiMH, NiCd, Pb, LiPo, Li-ion, and LiFe batteries with individual cell balancing for up to 6 lithium cells. It features a built-in adapter that can be powered from 100–240 VAC, or it can alternatively be powered via a 11–18 VDC input. With its versatile charging capabilities and advanced features like input power monitoring, delta-peak sensitivity, cyclic charging and discharging, and more, the iMAX-B6AC is a great addition to the workbench of any RC, DIY, or robot enthusiast.

Get a FREE copy of Elektor magazine’s February issue with your order while supplies last. This offer is only available for orders shipped to USA or Canada. To get your free issue, enter the coupon code ELEKTOR0212 into your shopping cart. The magazine will add 5.3 ounces to the package weight when calculating your shipping options.

The SparkFun Inventor’s Kit for Arduino with Retail Case is a box of goodies to get the very beginner started with programmable electronics. It includes everything you need to build 14 basic circuits connected to an Arduino Uno, and no soldering is required! An included booklet guides you through the construction of each project, and each project has a breadboard-overlay card that shows you exactly where each component goes on your breadboard.

Basic Micro’s RoboClaw motor controller can control a pair of brushed DC motors using serial, RC, or analog inputs. Integrated dual quadrature decoders make it easy to create a closed-loop speed control system. This version can supply a continuous 5 A per channel (10 A peak).

Basic Micro’s RoboClaw motor controller can control a pair of brushed DC motors using serial, RC, or analog inputs. Integrated dual quadrature decoders make it easy to create a closed-loop speed control system. This version can supply a continuous 15 A per channel (30 A peak).

Basic Micro’s RoboClaw motor controller can control a pair of brushed DC motors using serial, RC, or analog inputs. Integrated dual quadrature decoders make it easy to create a closed-loop speed control system. This version can supply a continuous 30 A per channel (60 A peak).

The Arduino Mega 2560 R3, the successor to the Arduino Mega, is a microcontroller board based on a ATmega2560 AVR microcontroller. It has 70 digital input/output pins (of which 14 can be used as PWM outputs and 16 can be used as analog inputs), a 16 MHz resonator, a USB connection, a power jack, an in-circuit system programming (ICSP) header, and a reset button. The Arduino has an extensive support community, which makes it a very easy way to get started working with embedded electronics.

Get a FREE copy of Elektor magazine’s January issue with your order while supplies last. This offer is only available for orders shipped to USA or Canada. To get your free issue, enter the coupon code ELEKTOR0112 into your shopping cart. The magazine will add 5.3 ounces to the package weight when calculating your shipping options.

This board is a simple carrier of Allegro’s ±12.5A ACS711 Hall effect-based linear current sensor with overcurrent fault output, which offers a low-resistance (~1.2 mΩ) current path and electrical isolation up to 100 V. This version accepts a bidirectional current input with a magnitude up to 12.5 A and outputs a proportional analog voltage centered at Vcc/2 with a typical error of ±5%. It operates from 3 to 5.5 V, so it can interface directly to both 3.3 V and 5 V systems.

The LSM303DLM combines a digital 3-axis accelerometer and 3-axis magnetometer into a single package that is ideal for making a tilt-compensated compass. The six independent readings, whose sensitivities can be set in the ranges of ±2 to ±8 g and ±1.3 to ±8.1 gauss, are available through an I²C interface. This LSM303 carrier board includes voltage regulators and a level-shifting circuit that allows operation from 2.6 to 5.5 V, and the 0.1" pin spacing makes it easy to use with standard solderless breadboards and 0.1" perfboards.