03/09/2026
đ§ Two soldering tutorials for the Year 9 Bluetooth Speaker Project are now live!
These short, practical videos help students:
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Check whether a soldering iron is hot enough using two simple tests
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Prepare wires and soldering points
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Apply solder correctly for a neat, reliable joint
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Connect wires securely to the Bluetooth module and speaker component
Watch both videos and read the full guide here:
https://designjournalsos.blogspot.com/2026/09/the-first-two-soldering-tutorials-for.html
Let me know in the comments if you would like other or additional content.
The first two soldering tutorials for Year 9 students: test iron temperature, then connect wires to a Bluetooth module and speaker.