A mini low-frequency power transformer is used to step up or step down AC voltage at standard mains frequencies — 50Hz or 60Hz. It’s commonly used in AC adapters, power supplies, and electronic circuits requiring isolated, stable low-voltage AC. 

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🔧 Soldering Paste (also known as solder paste) is a semi-solid material used in electronics to temporarily hold components in place and create strong electrical connections when soldering — especially in surface-mount technology (SMT).

“Timah Solder” means solder wire in Bahasa (Indonesian/Malay), and Asahi is a well-known Japanese brand producing high-quality lead-free solder wire. The 0.8mm diameter is a versatile size used for most electronics soldering tasks.

Goot is a well-known Japanese brand specializing in soldering equipment, widely respected for its durability, precision, and reliability. It's commonly used by professionals and hobbyists alike in electronics, PCB repair, and prototyping.

STM32F103C8T6 ARM

A portable electric soldering iron is a compact, mobile tool for soldering electronic components without the need for constant AC power. Perfect for field work, small DIY projects, or emergency repairs.

A desoldering pump is a tool used to remove melted solder from circuit boards when taking out electronic components. 

A Li-Ion charger is a device used to safely charge lithium-ion batteries, which are commonly found in phones, power banks, drones, tools, and DIY electronics.

USB Type-B is a square-shaped USB connector commonly used for connecting printers, scanners, and some older external hard drives to a computer.