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The MQ-8 module allows the measurement of hydrogen concentration in the air. It has an analogue output and an output triggered by exceeding the threshold of sensitivity.

Plastic enclosure Z72 with lug ABS

6-channel transmitter (RC apparatus) 2.4 GHz Flysky FS-i6 with LCD display in set with receiver FS-IA6 with telemetry support. 6V power supply (4 x AA battery). Left-hand throttle (right-handed version). Flysky FS-i6

A module with a distance and gesture sensor that allows the detection of objects in two axes (x and z) and the detection of simple gestures. It communicates via the I2C or UART interface. SparkFun SEN-13162

The Step-Up / Step-Down S18V20F12 inverter module gives the output voltage of 12V with a wide input voltage range of 3 ... 30V and a maximum output current of 2A. Polol 2577

DTMF module (two-tone multi-frequency dialing) dedicated to Arduino. It allows you to add the tone signaling function used in telephones for dialing. DFRobot DFR0308

DE1-SoC Development Kit

Class-D stereo digital audio amplifier module PAM8403. The system allows you to connect two speakers with an impedance of 4 to 8 Ω and a power of 3 W. DFRobot DFR0119-O

Plastic enclosure Z74 lightgray PS

The 4 AA R6 battery holder is a basic but essential item for those who need a simple way to connect batteries for higher voltage. Cable length 15 cm

Vibration sensor designed to test seismic vibrations. It converts data on ground movements into electrical impulses. Adapted to receive low frequencies ranging from 10 to 240 Hz. SparkFun SEN-11744

A two-part set that enables wireless power supply for devices with a voltage of 5V. 7W power can be obtained at a distance <7mm. Maximum efficiency 50%

1.5A USB-Friendly Li-Ion Battery Charger and Power-Path Management IC, QFN16, TI, RoHS

Hermetic enclosure Z74 lightgray with gasket PS

360° encoder module with LED indicators. It communicates via the I2C interface (Gravity connector). DFRobot SEN0502

LilyPad reed switch in a black insulated casing preventing the element from breaking. SparkFun DEV-13343

Adapter for connecting the GPIO line of the Raspberry Pi to the breadboard (2.54 mm). The set includes a connection tape. SparkFun BOB-13717

The 2 AAA R3 battery holder is a basic but essential item for those who need a simple way to connect batteries for higher voltage. Cable length 15 cm

Plastic enclosure Z78 blue ABS