The HS-422 is one of the most durable and reliable servos Hitec has ever offered. With its dual iron-oilite bushings, high impact resin gear train and high performance circuitry, the HS-422 features excellent centering and resolution.

Dimensions1.59" x 0.77" x 1.44" (40.39 x 19.56 x 36.58mm)

Product Weight1.6oz (45.5g)

Output Shaft Style24 tooth (C1) spline

Voltage Range4.8V - 6.0V

No-Load Speed (4.8V)0.21sec/60°

No-Load Speed (6.0V)0.16sec/60°

• Metal Gear Servo with a brushed DC coreless motor inside, making quick response, strong adaptability, and low electromagnetic interference.
• Stall Torque: 12 kg/cm(4.8V), 15kg/cm(6V)
• Metal gear and dual-ball bearing.
• Dimensions : 54.1 x 20 x 44.3 mm; Weight: 55g
• Supports voltage control in bipolar driver mode.

NOTE: This product is only designed for use with solar panels sold at the Adafruit store. We cannot guarantee this will work with solar panels purchased elsewhere. Please purchase this kit and panels from Adafruit to ensure optimized functionality! A 2.1mm adapter cable is also required to adapt a solar panel to the DC power jack.

The SparkFun Battery Babysitter is an all-in-one single-cell Lithium Polymer (LiPo) battery manager. It’s half battery charger, half battery monitor, and all you’ll ever need to keep your battery-powered project running safely and extensively.

The simplest way to reduce the voltage of a DC supply is to use a linear regulator (such as a 7805), but linear regulators waste energy as they operate by dissipating excess power as heat and do not yield any current step up. Buck converters, on the other hand, can be remarkably efficient (95% or higher for integrated circuits), making them useful for tasks such as converting the main voltage in a computer (12V in a desktop, 12-24V in a laptop) down to the 0.8-1.8V needed by the processor.

Specifications:

• Charge module- Linear charging
• Current- 1A adjustable
• Charge precision- 1.5%
• Input voltage- 4.5V-5.5V
• Full charge voltage- 4.2V
• Led indicator- red is charging blue is full charged
• Input interface- mini USB
• Work temperature- -10℃ to +85℃
• Inversed polarity- NO
• Size- small to 25X19X10mm

Note:

This is the Sunny Buddy, a maximum power point tracking (MPPT) solar charger for single-cell LiPo batteries. This MPPT solar charger provide you with the ability to get the most possible power out of your solar panel or other photovoltaic device and into a rechargable LiPo battery. Set-up is easy as well, just plug your solar panel into one side of the Sunny Buddy and your battery into the other and you are good to start charging!

• Compact Switching BEC

• 5-23V 

• 2-5S LiPo, 5-15 NiMh

• 11.5g including ferrite ring, wire and connector.

• Output: 5V, 3A continuous