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Programmable coin acceptor with memory for 3 types of coins. It uses the thickness, diameter and fall time of the coins for identification. Programming is done using buttons and a 7-segment display on the side of the device. SparkFun COM-11719

Programmable coin acceptor with memory for 6 types of coins. It uses the thickness, diameter and fall time of the coins for identification. Programming is done using buttons and a 7-segment display on the side of the device. SparkFun COM-11636

Adapter from DC 5.5 x 2.1 mm male connector to terminal spring connector

Adapter from female RCA connector to terminal spring connector

Module with a 2-channel inductive sensor LDC1612. The board is equipped with a Grove connector and communicates via the I2C interface. Seeed Studio 101020599

8 latch latches with three-state buffers on outputs, TTLHC series, CMOS technology, 2-6 V power supply, DIP20 housing, manufacturers different.

Industrial IoT backplane for Raspberry Pi CM. It uses the SIM7600G-H chip for 4G, 3G, 2G communication, and has a 10/100M Ethernet port with PoE function and a 2.4 GHz WiFi module. Enclosed in an aluminum housing. Waveshare CM-IO-POE-4G-BOX

  8-bit shift register with three-state outputs, TTLHC series, CMOS technology, 2-6 V power supply, DIP16 housing, manufacturers differ.

26 "tool box with a pull-out tray with a bit holder and additional organizers for storing small items.

Base board for Arduino Nano with connectors for wireless communication modules

A communication module based on the Raspberry Pi RP2040 microcontroller, designed for data transmission in the 868 MHz band. It supports point-to-point LoRa and LoRaWAN operation, offering long range and low power consumption. The board is equipped with six Crowtail interfaces, an integrated battery charging circuit, and the ability to be powered by a solar panel. Compatibility with the Arduino IDE and MicroPython makes it an ideal platform for building IoT nodes, weather stations, and environmental monitoring systems. Elecrow RA-08H LoRaWan Node

Heart rate monitor module based on the popular MAX30101 and MAX32664. The board is equipped with connectors compliant with the Qwiic standard. SparkFun SEN-15219

Linear solenoid with a nominal operating voltage of 36 V. Allows for linear motion to move elements or control switches and levers. SparkFun ROB-10391

A set of 100 M3 screws with a length of 12mm with Philips head

A set of 10 M3 screws with a length of 12mm with Philips head

A set of 100 M3 screws with a length of 8mm with Philips head

Quartz resonator, housing HC49, RoHS