Building a Sound-Reactive LED Kit Using FNIRSI HS-03 Cordless Soldering Iron

Looking for a fun electronics project and want to see the new FNIRSI HS-03 cordless soldering iron in action? In this video, we are assembling and testing the CD4017 Voice-Activated LED Water Light DIY Kit entirely with the HS-03! This sound-reactive circuit uses a microphone to trigger a beautiful "running water" LED effect. Watch the step-by-step process from unboxing to the final sound test, and see how the new FNIRSI cordless iron handles the job. 📌 What's Inside the Video: 00:00 - Unboxing the DIY Kit 01:30 - Component Layout 03:00 - Soldering Resistors & Diodes with Fnirsi HS-03 05:00 - Installing IC Sockets and Capacitors 07:00 - Soldering the LEDs and Microphone 09:15 - Connecting Power & First Turn-On 10:00 - Sound Test & Voice Reaction (💡 Note: Adjust these timestamps slightly to match your exact video timeline!) If you enjoyed this build or want to see more tool tests, please give it a 👍 Like, leave a Comment with your thoughts on the FNIRSI HS-03, and Subscribe for more DIY electronics! 🛠️ Tools Used: Soldering Iron: FNIRSI HS-03 Cordless Soldering Iron Solder: Lead-free / Rosin core Wire Cutters / Flush Cutters #FNIRSI #HS-03 #CordlessSolderingIron #DIYElectronics #CD4017 #LEDChaser #SolderingKit #VoiceActivated #ElectronicsProject