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DIY Doorbell Kit with NE555 Chip by diymore
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US$54.00 cheaper than the new price!!
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Used US$36.00
Product details
| Management number | 213621790 | Release Date | 2026/04/12 | List Price | US$36.00 | Model Number | 213621790 | ||
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This DIY Doorbell Kit, powered by a NE555 chip, comes with components like 100UF and 10UF capacitors, and other essential parts. It operates within a 4.0-7.0V range and features a compact PCB size of 28mm x 25mm. The kit includes an 8 Ohm 0.25W horn, along with red and black lines, the NE555 chip, an 8P IC block, and various capacitors and resistors. The circuit design produces two distinct frequencies for the speaker, creating 'ding' and 'dong' sounds.
- New and High-Quality: Enjoy a fresh, top-tier product
- Doorbell Switch Operation: Press the door's push button switch (s1) to charge the capacitor, initiating a timer that produces sound frequency f1. Release the switch to discharge the capacitor, generating a different frequency (2f). The timer resets once the capacitor is fully discharged
| Brand Name | diymore |
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| Item Weight | 15 Grams |
| Manufacturer | diymore |
| Material Type | Metal |
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