51 MCU BUCK Step-Down/BOOST Step-Up Adjustable Digital Power Supply Development Board Tutorial, PID Control STM32

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300-Piece SMD Loose Components Electronic Welding PCB Test Kit, Practice Board Skills Circuit Board YH-113

$19.50

(Loose Parts) Photo-Sensitive Light-Controlled Audio-Visual Alarm Kit with Buzzer and Double-Sided PCB Board for Teaching, Training, and Soldering Practice

$6.80

SOP8 Chip SMD Component Soldering Practice Board Skill Training Discrete Parts PCB DIY Training 0805 0603

$10.42

Through-Hole and SMD Dual-Use Soldering Practice Board FR4 Fiberglass Material PCB Soldering Practice Board YH-359

$30.00

Environmental Humidity Controller Kit Electronic DIY Soldering Skill Training Electronic Circuit PCB Board Production Practice

$35.84

8-Channel Digital Display Quiz Buzzer Electronic Kit CD4511 Multi-Channel PCB Board Electrician Skill Soldering Practice Loose Parts

$4.62

(Loose Parts) High-Density Multi-Pin SMD Chip Soldering SMT Running Light Practice Board High-Difficulty PCB Kit

$38.80

(Loose Parts) SMD SOP-8P Chip, 0805 Electronic Components, 0603 Resistors, PCB Soldering IC Practice Board Kit

$16.00

555 Components Through-Hole and SMT Double-Sided Welding Enhanced Practice Board Kit Electronic DIY Parts PCB Fabrication

$77.64

Plasma Speaker - Classic TL494 Plasma Audio System, Handmade DIY Electronic Teaching Kit

$37.00

Remote Control Car DIY Kit, Wooden Handmade Assembly Model Materials, Primary and Secondary School Science Experiments, Technology Production

$6.30