💎【FT232RL FTDI Mini USB to TTL Serial Port Module】: From a stability point of view, the FT232 series is the most reliable and can be used to debug programs without worrying about the blue screen. | ⚡【Working Voltage】：3.3V/5.5V | 🥇with 500MA self-restore Fuse; | 🥈RXD/TXD transceiver communication indicator; | 🥉Support Win95/98/98se/ME/2000/XP/win7 32bit 64bit /Vsita/, do not Support Win8

120 Pin Breadboard Jumper Wires: Length 20cm, 40pin Male to Female, 40pin Male to Male, 40pin Female to Female | Material: Copper-clad aluminum,PVC | Color: 10 Different Colors (as the picture shows) | Each cable length: About 20cm (8inch) | For DIY experiment , Electronic projects , Breadboard , PC motherboard , PCB project

💎【28BYJ-48 ULN2003 5V Stepper Motor + ULN2003 Driver Board】:A, B, C, D four-phase LED indicates the status of the stepper motor work. | ⚡【Supply Voltage】:5V 4-phase | 📐【Torque】: >34.3mN.m | 📐【Step angle】: 5.625 x 1/64 | 📐【Reduction ratio】: 1/64

💎【28BYJ-48 ULN2003 5V Stepper Motor + ULN2003 Driver Board】:A, B, C, D four-phase LED indicates the status of the stepper motor work. | ⚡【Supply Voltage】:5V 4-phase | 📐【Torque】: >34.3mN.m | 📐【Step angle】: 5.625 x 1/64 | 📐【Reduction ratio】: 1/64

💎【FT232RL FTDI Mini USB to TTL Serial Port Module】: From a stability point of view, the FT232 series is the most reliable and can be used to debug programs without worrying about the blue screen. | ⚡【Working Voltage】：3.3V/5.5V | 🥇with 500MA self-restore Fuse; | 🥈RXD/TXD transceiver communication indicator; | 🥉Support Win95/98/98se/ME/2000/XP/win7 32bit 64bit /Vsita/, do not Support Win8

💎MF RC522 is a highly integrated contactless (13.56MHz) card reader chip. | ⚡【Working Voltage】: 3.3V | 🥇Low voltage, low cost, small size contactless card reader MF RC522 chip | 🥈MFRC522 Supports MIFARE series higher-speed contactless communication, bidirectional data transmission rate up to 424kbit/s | 🥉RFID RC522 Module is a better choice for the development of smart meters and portable handheld devices

Items available: nickel-plated models and gold-plated models, please select the desired. | The pin is the standard size of 4mm diameter, fitted for most speakers worldwide。 | Plastic Handle Color: Red, Black | Screw connector fitting no soldering required for 20 AWG to 14 AWG speaker wires。 | External design: you can connect multiple banana plugs at the same time, multi-device connection.

Dimension: 1.57 x 1.57 x 0.43 inch / 40x40x11mm (L*W*H) | Sink Small Heatsink for 3D Printer TEC1-12706 Thermoelectric Cooler Chipset CPU LED Power Supply | Can be applied for passive cooling of 3D printers stepper motor, NEMA 17, TEC1-12706 Thermoelectric Peltier Cooler etc

💎MF RC522 is a highly integrated contactless (13.56MHz) card reader chip. | ⚡【Working Voltage】: 3.3V | 🥇Low voltage, low cost, small size contactless card reader MF RC522 chip | 🥈MFRC522 Supports MIFARE series higher-speed contactless communication, bidirectional data transmission rate up to 424kbit/s | 🥉RFID RC522 Module is a better choice for the development of smart meters and portable handheld devices

💎【IR Infrared Sensor】：Widely Used Robot obstacle avoidance, obstacle avoidance car, assembly line counting and black and white line tracking and many other occasions. | ⚡【Operating Voltage】：3.3-5V (3.3V Recommended) | 🥇【Detection angle】：35° | 🥈【Detection Distance】：2～30cm | 🥉【Adjustable potentiometer】：Adjust clockwise to increase the detection distance; adjust the potentiometer counterclockwise to decrease the detection distance.

💎The MAX3232 is a popular RS232 to TTL converter module, commonly used for communication between microcontrollers and devices that use RS232 serial communication. | ⚡Operating voltage: 3.3V~3.5V | 🥇Using MAX3232 chip, higher reliability and better tolerance. | 🥈Adopt 2.54mm standard interface, which can be more easily installed on other circuit boards. | 🥉Support RS232 and TTL two standards, can realize seamless conversion between low voltage mode and high voltage mode.

Mini Breadboard: 6pcs SYB-170 Mini Breadboard White Breadboard Small Plates + Multicolored Dupont Wire 10pin Male to Male, 10pin Male to Female Breadboard Jumper Wires About 21cm (8inch) | Material: 170 points Solderless breadboards with Tight Metal Spring under Tie Point for Excellent connection | Color: White | SYB-170: 4.7 * 3.5 * 0.85cm(1.85 * 1.38 * 0.33inch) | Multicolored Dupont Wire Each cable length: About 21cm (8inch)

👍【Product name】:high quality 14 Values 840 Pcs Breadboard Jumper Wires Kit work well with any breadboards or anywhere jumper wires are needed, perfect for breadboard projects | 🥇【Package content】:2/5/7/10/12/17/20/22/25/50/75 /100/125mm each 60Pcs ; 1 x Tweezer ;Plastic Dispenser Box | 🥈【Easy to use】: all the colored jumper wire are pre-stripped and preformed right-angled, easy to insert it into breadboard | 🥉【Scope of application】: computers, electronic communications, instruments, meters, industrial program control, digital cameras, MP3, card readers, DVDs, LCM/LCD displays, electronic toys，PCB project, pc motherboard etc | 💯【Extra bonus】:Free a plastic box, convenient for jumper storage; free tweezers for breadboard testing | ⚡【Note】: the breadboard wire is a little soft so that convenient for changing its shape to do connect test; if you find that it can't be inserted, please check whether the cable in the pin hole of the breadboard is in good condition or not

⚡Support USB to parallel printer port and EPP or MEM parallel port | ⚡Have UART and SPI / I2C working status indicator | ⚡The output voltage and signal level can be selected from 3.3V or 5V | ⚡Support USB to UART, I2C, SPI interface | ⚡Package Includes:1x DollaTek CH341A USB to UART/IIC/SPI/TTL/ISP adapter EPP/MEM Parallel converter

-Stable and reliable CP2102 chip, generate virtual serial port after installing the driver | -Support 3.3V and 5V STC full Series MCU Programming. | -Perfect support for the highest baud rate 115200! Applicable to STC12 series, STC11 series, STC15 series! | -On-board status indicator, transceiver indicator, the status indicator will be always on after the driver is installed correctly, the transceiver indicator will flash when communicating, the higher the baud rate, the lower the brightness. | -Supports Windows 98SE, 2000, XP, Vista, Window7, Mac OS 9, Mac OS X & Linux 2.40.

512-byte SMBus data buffer with configurable clock speed Device Address 7-bit value is the slave address of the CP2112 | Integrated 194-byte one-time programmable ROM for customizable product information | Supports HID to SMBus library API for Windows, Mac and Linux for rapid application development | Applications: portable controllers, USB dongles, data logging

💎【HC-SR04 Ultrasonic Sensor】：This is a device that can use sound waves to measure the distance of an object. It measures distance by emitting a sound wave of a specific frequency and listening to the bounce of that sound wave. The distance between the sonar sensor and the object can be calculated by recording the time elapsed between the generation of the sound wave and the bounce of the sound wave. | ⚡【Working Voltage】: 5V DC；Quiescent current: less than 2mA. | 📐【Ranging Distance】：2cm - 450 cm；High precision: 0.3 cm. | 📐【Effectual Angle】: <15° | 🎯【Test mode 】：Test distance = ((Duration of high level)*(Sonic :340m/s))/2

The temperature of the hot surface of semiconductor refrigeration should not exceed 60 ℃, otherwise there is a possibility of damage. | TEC1-12706 Semiconductor Refrigeration Tablets：It is made of ceramic substrate 12V 6A 60W Assemblypressure 85N/cm2（40 x 40 x 3.7mm） | Aluminum Heatsink：Back Side Thermal Conductive Tape（40 x 40 x 11mm） | 4010 Fans：12V 6512+5%RPM（40 x 40 x 10mm） | Unsure of hot and cold sides 1 Pcs 1.5V battery can be used to test

USB to RS485 RS232 Converter: The product can support USB to RS232 and USB to RS485, but the two functions cannot be used at the same time.RS-485 flow control mode automatic flow control | Voltage：UBS 5 V | New Original Chip CH340，Transmission distance up to 1200 meters (tested at 9600bps) | Support baud rate RS232: 300bps-120kbps. RS485 ：300bps-1Mbps | Support win98/CE/2000/2003/2008/XP/WIN7/WIN8/WIN10/VISTA/LINUX/MAC OS X system, USB interface can be hot-swappable | Industrial grade protection: TVS transient suppression protection, ESD protection, surge protection, AB signal line shorting and shorting protection with power supply (shorting does not burn)