Banggoodでの6桁DIY時計キットのトップポジティブレビュー Japan|購入日本

40% OFF 6桁のDIY時計キットオートディスプレイタイム DIYアラーム時計スダリング練習キット学生やDIY愛好家向け DC4.5V-5.5V US$8.99 US$15.00 View It

全体：

jeever 26/08/2024

This is a lovely nostalgic kit that wouldn't look out of place in an ‘elektor’ from the 1980s. However, it is an ideal project to teach people how to solder and introduce them to digital electronics. The proper functioning of such a clock obviously hinges on the accuracy of the one-second clock pulse. We measured the pulse period with our frequency/period meter PM6669 from Fluke. Over a period of one day, the pulse duration varied between the two values below: - 0.999,762,6 second - 1.000,047,2 seconds The positive and negative deviations are probably caused by variations in room temperature. That, over one day, there is both positive and negative deviation from the exact value of 1,000,000.0 seconds is favourable. The lagging of the clock at 0.999,762,6 seconds is then partially offset by the leading at 1.000,047,2 seconds.

提出

バッジについて

バッジはコミュニティに関連しており、ユーザーは質の高いコンテンツを作成したり、ミッションを完了したり、特別なアクティビティに参加したりすることでバッジを獲得します。特定の人には独自の専用バッジもあります。

CEOバッジ

CEOバッジの所有者はバングッドのボス。

獲得できるバッジはまもなく提供されます

About Badges

Badges are related to the community, and users earn badges by creating quality content, completing missions, or by participating in special activities.

Helpful Badges

The Badge is awarded to users who are subscribed to the Invite Answer email and signifies their gratitude to help others. The badge appearance upgrades as the user helps more people.

You are the expert,can you help?

We sincerely invite you to subscribe to the Invite Answer email!

If you subscribe, we will invite you via email to answer questions people have about products. By subscribing you'll also earn the "Helpful Badge"! You can unsubscribe at any time on the privacy settings page.

Help others and be happier!

Thank you! Your answer will help ###name### and ###num### other people!

Subscribe to "Invite Answer" emails and use your knowledge to help more people with product questions. By subscribing you'll also earn the "Helpful Badge"!

バッジについて

CEOバッジ

CEOバッジの所有者はバングッドのボス。

獲得できるバッジはまもなく提供されます

About Badges

Badges are related to the community, and users earn badges by creating quality content, completing missions, or by participating in special activities.

Helpful Badges

The Badge is awarded to users who are subscribed to the Invite Answer email and signifies their gratitude to help others. The badge appearance upgrades as the user helps more people.

You are the expert,can you help?

We sincerely invite you to subscribe to the Invite Answer email!

Help others and be happier!

Thank you! Your answer will help ###name### and ###num### other people!

Subscribe to "Invite Answer" emails and use your knowledge to help more people with product questions. By subscribing you'll also earn the "Helpful Badge"!

カテゴリー

バッジについて

About Badges

Helpful Badges

You are the expert,can you help?

バッジについて

About Badges

Helpful Badges

You are the expert,can you help?