Short Circuits Two Project - Countdown Timer
Assembly Required
This neat project enables you to dial a time you want to elapse before you want something to happen, say the exposure of a camera shutter or an electrically operated door to stay open. At the end of the timed period (seconds to many minutes) a relay is energized which can switch something on or off.
•PCB and all parts supplied, including relay.
•Requires 9V battery.
Instructions sold separately or withing the Short Circuits book range,
Short Circuits Books are available for Download Here
For More Information on Kids science/electronics projects Click Here for Kits for Kids
| Kit Form | Short Form (circuit only) |
| Kit Group | Short Circuit Series |
| Difficulty | Simple |
| Application Field | Countdown Timer |
| Contains High Voltage Components | No |
| Device | Timer |
| Instructions Included | No |
| PCB Width | 47mm |
| PCB Length | 61mm |
| Additional required items | 9V battery |
| Project Number(s) | 2 |
| Volume Number | Volume 2 |
Downloads
Assembly Required
This neat project enables you to dial a time you want to elapse before you want something to happen, say the exposure of a camera shutter or an electrically operated door to stay open. At the end of the timed period (seconds to many minutes) a relay is energized which can switch something on or off.
•PCB and all parts supplied, including relay.
•Requires 9V battery.
Instructions sold separately or withing the Short Circuits book range,
Short Circuits Books are available for Download Here
For More Information on Kids science/electronics projects Click Here for Kits for Kids
| Kit Form | Short Form (circuit only) |
| Kit Group | Short Circuit Series |
| Difficulty | Simple |
| Application Field | Countdown Timer |
| Contains High Voltage Components | No |
| Device | Timer |
| Instructions Included | No |
| PCB Width | 47mm |
| PCB Length | 61mm |
| Additional required items | 9V battery |
| Project Number(s) | 2 |
| Volume Number | Volume 2 |
Downloads
Description
Assembly Required
This neat project enables you to dial a time you want to elapse before you want something to happen, say the exposure of a camera shutter or an electrically operated door to stay open. At the end of the timed period (seconds to many minutes) a relay is energized which can switch something on or off.
•PCB and all parts supplied, including relay.
•Requires 9V battery.
Instructions sold separately or withing the Short Circuits book range,
Short Circuits Books are available for Download Here
For More Information on Kids science/electronics projects Click Here for Kits for Kids
| Kit Form | Short Form (circuit only) |
| Kit Group | Short Circuit Series |
| Difficulty | Simple |
| Application Field | Countdown Timer |
| Contains High Voltage Components | No |
| Device | Timer |
| Instructions Included | No |
| PCB Width | 47mm |
| PCB Length | 61mm |
| Additional required items | 9V battery |
| Project Number(s) | 2 |
| Volume Number | Volume 2 |
