Gadgets & SWAG
Description: Thermoelectric coolers (TEC or Peltier) create a temperature differential on each side. One side gets hot and the other side gets cool. Therefore, they can be used to either warm something up or cool something down, depending on which side you use. You can also take advantage of a temperature differential to generate electricity.
This Peltier works very well as long as you remove the heat from the hot side. After turning on the device, the hot side will heat quickly, the cold side will cool quickly. If you do not remove the heat from the hot side (with a heat sink or other device), the Peltier will quickly reach stasis and do nothing. We recommend using an old computer CPU heatsink or other block of metal to pull heat from the hot side. We were able to use a computer power supply and CPU heatsink to make the cold side so uncomfortably cold we could not hold our finger to it.
Note: It is imperative that a heat sink is used on the hot side of the module. Running the module without one can cause damage to this part. If it’s too hot to comfortably touch, you’re in the danger zone!
- 40 x 40 x 3.6mm
- lmax - 7A
- Umax - 15.4V
- Qcmax - 62.2W
- Tmax - 69C
- 1.7 Ohm resistance
- 127 thermocouples
- Max Operating Temp: 180°C
- Min Operating Temp: -50°C
1 x cooler plate module(40mm x 40mm)
The Raspberry Pi logo, outlined in white, on this vibrant red T-shirt.
This is a high-quality heavy cotton T-shirt, with a beautifully screen-printed full colour Raspberry Pi logo.
- 90% cotton with 10% polyester
- Full colour screen-printed logo
- Preshrunk, machine washable, can be tumble dried
- Seamless double needle 7/8 collar, with taped neck and shoulders
- Double needle sleeve and bottom hems
- Quarter-turned to eliminate center crease
Take good care of your T-shirt by machine washing on a warm setting inside out with like colours. Tumble dry on a medium setting. Do not dry clean.
Item name:2.5CH Mini Micro Remote Control RC Helicopter
Required Radio: 2.5 Channel
Flight Time: Approx. 6 minutes
Charging Time: About 20minutes
Helicopter Battery: Rechargeable 3.7V 75mAh Lithium Battery(Included)
Transmitter Battery: 4 x 1.5V AA Batteries (Not Included)
Control Distance: 10-15meters
Body Material: Plastic
Color: White,Red,Yellow blue,Yellow Red
Dimensions of the helicopter: 8 x 2.1 x 5.1cm (L x W x H)
Weight of helicopter: 12 g
Package Size:14 x 6 x20cm
NOTE:2.5CH mini helicopter can not fly forward nor backward.
Semi-micro size and light weight, easy to control
High tenacity propeller, high efficiency, driving motor and surge power
Flexibly control it by IR control function
Charged by four 1.5V AA batteries
It’s simple, sturdy construction is perfect for first-time pilots
Good capability of anti-interference while remote controlling and feel fit of the transmitter
Built in Gyroscope for extreme stability and precision(compare with 2CH RC Helicopter)
With infrared function, it is advance and high-tech
1 x Mini RC Helicopter
1 x Transmitter
1 x User Manual
This cool little solar car needs no batteries, just powered from the sun energy, can directly start the engine in strong sunlight and keep running fast.
It is eco-friendly, energy-saving, specially-designed and fashionable, and without doubt, it is a perfect teaching aid for students, is a fun and educational way to learn about solar power.
The solar cell generates electricity from sunshine that drives a miniature motor that turns the wheels. This little car can really move. The mini racer is small enough to take anywhere. The car will also work when close to a strong artificial light source.
100% brand new.
No Battery Required .Powered by Solar energy
Amazing toy for Children
Not suitable for kids under 3 years old.
Size 30mm x 22mm x 15mm
1 x Solar Powered Toy Car
Material: real wood
Solar panels to power: 0.15 w
Size:150mm x 70mm x 85mm
The fuselage is made by high grade lumber. The propeller consist of a solar polycrystalline silicon rubber encapsulation and electric motor. In sunshine, the solar cells turn solar energy into electrical energy and drive the motor so the propeller begins to spin. Speed of the propeller can change gradually according to intensity of light.
Note:The Solar wooden helicopter itself is NOT going to fly in the sun.
1 x Solar Power Wooden Helicopter
Item name: Eachine H8 Mini RC Quadcopter
Gyro: 6 axis
Product size: 13.5*13.5*2.8cm
Package size: 14.5*7.8*13.5cm
Quadcopter weight: about 20g
Product battery: 3.7V 150MAH
Remote battery: 3 x AAA dry battery
Charging time: 45mins
Flying time: 5-7mins
R/C distance: about 30m
Flying distance: about 30m
With Headless Mode,there is no need to adjust the position of the aircraft before flying .
One key return function makes it easily to find the way home.
4 Channel which can do ascend, descend, forward, backward, left sideward, right sideward and rolling 360°
It has a 6-axis gyro which makes for more stable flying and easy to control
It can do 3D tumbling in four directions with 4 LED lights.
Lightweight airframe with durability
1 x H8 Mini RC Quadcopter
1 x Transmitter
1 x USB cable
1 x Screwdriver
1 x Manual