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The Variator is a device that transfers and adjusts the engine torque by changing the ratio of gears. Gear ratio can change automatically, manually or within a pre-set program. The term that most drivers and automobile enthusiasts are more accustomed with is Continuously Variable Transmission, or CVT. With DIY wooden puzzle Variator from the STEM lab collection you can learn and comprehend one of the most important parts of a car without soiling your hands in machine oil! UGears 70147
The roots of the modern car CVT go back to 1879 when an American entrepreneur and a pioneer of the automobile industry Milton Othello Reeves invented a device for use in sawmilling that he then called a variable-speed transmission. Later he began fitting this transmission to his cars. The Reeves CVT was also used by several other manufacturers.
The CVT is used in mechanisms, in which a continuous range of gear ratios must be changed seamlessly: cars, motor scooters, snowmobiles, quadracycles, conveyors, metal-cutting machines, etc. To have a better idea about how it is used in different types of equipment, try the AR application that comes with the Ugears STEM model.
The mechanical puzzle Variator of the Ugears STEM lab collection is a fully functional wooden replica of a Belt-driven Friction Cone CVT. The Cone CVT varies the drive ratio by moving a wheel or belt up and down the axis of conical roller. In the Ugears model kit Variator, the belt, powered manually via the reducer, transfers the rotation to the driven cone pulleys. Use the transmission fork to change gears and observe how the speed of the driven cone pulley drops or rises while the drive cone pulley’s speed remains the same. Due to the open design of the model, you will be able to see the whole process.
Module with a UV ultraviolet light sensor VEML6075. It enables measurement of the level of UVA (350-375 nm) and UVB (315-340 nm) radiation. It communicates via the I2C bus. Pimoroni PIM460
No product available!
Module with 6-axis IMU motion sensor that combines a 3-axis accelerometer and a 3-axis magnetometer in one system. It communicates via the I2C bus. Pimoroni PIM376
No product available!
Module with two 5x7 LED matrix displays designed to work with the Raspberry Pi. It uses IS31FL3730 drivers and communicates via the I2C interface. Pimoroni PIM527
No product available!
Module with two 5x7 LED matrix displays designed to work with the Raspberry Pi. It uses IS31FL3730 drivers and communicates via the I2C interface. Pimoroni PIM526
No product available!
The system of a practical clock with an extremely simple design is equipped with a readable LED display, an alarm clock with a snooze function, and battery backup of the clock operation after a power failure
No product available!
Kit with DA7280 vibration motor driver module and LRA (Linear Resonant Actuator) motor. It allows you to add vibration feedback from the device to the project. SparkFun ROB-18247
No product available!
No product available!
The Winstar WEH001602ABPP5N00100 OLED display is a character display with dimensions of 80×36×10 mm, capable of displaying 16 characters on 2 lines. It comes with a built-in WS0010-TX controller and operates within a power supply voltage range of 4.8–5.3 V and temperature range of -40°C to 80°C, offering excellent readability thanks to OLED technology.
No product available!
Kit with Jetson Mate base board designed for SoM modules NVIDIA Jetson Nano and Jetson Xavier NX. It allows you to connect 4 SoM modules and create a home GPU computing cluster or server. Seeed Studio 110991411
No product available!
Jetson Mate motherboard for NVIDIA Jetson Nano and Jetson Xavier NX. It allows you to connect 4 SoM modules and create a home GPU computing cluster or server. Seeed Studio 114992562
No product available!
ToF distance sensor (Time of flight) with a range of up to 2.5 m. The module is powered with the voltage of 3.3 V and communicates via the I2C interface. SparkFun SPX-17716
No product available!
RFID antenna designed for UHF RFID tags. It allows you to increase the effective range of tags to about 2.5 cm. SparkFun SPX-15113
No product available!
OLED display with a diagonal of 0.91" and a resolution of 128x32 pixels. It is equipped with Qwiic connectors and communicates via the I2C interface. SparkFun LCD-17153
No product available!
Starter kit with RedBoard development board and Qwiic modules: IMU, environmental sensor, GPS module, joystick, accelerometer, keyboard and proximity sensor, MP3 player, relay and OLED display. SparkFun KIT-16262
No product available!
QLED IPS 9" display with a touch screen and Quantum Dot technology. The display is equipped with an HDMI interface for image display and USB for the touch panel. Resolution 1280x720 pixels. Waveshare 9HP-CAPQLED
No product available!
QLED IPS 10.1" display with a touch screen and Quantum Dot technology. The display is equipped with an HDMI interface for image display and USB to the touch panel. Resolution 1280x720 pixels. Waveshare 10.1HP-CAPQLED
No product available!
The Variator is a device that transfers and adjusts the engine torque by changing the ratio of gears. Gear ratio can change automatically, manually or within a pre-set program. The term that most drivers and automobile enthusiasts are more accustomed with is Continuously Variable Transmission, or CVT. With DIY wooden puzzle Variator from the STEM lab collection you can learn and comprehend one of the most important parts of a car without soiling your hands in machine oil! UGears 70147