Time-Delay Electronic Controller Assembly
A quartz-crystal timer that counts down from a programmed time to unlock, with battery backup, keypad input, and audit log of unlock events. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.
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Bill of materials
9 top-level lines · 9 rows shown · 11 parts total · indented to 3 levels| # | Item / sub-assembly | Part no. | Qty/assy | Ext. qty | Parts | Type |
|---|---|---|---|---|---|---|
| 1 | Safe Deposit System Rtc Module | time-delay-safe-safe-deposit-system-rtc-module | 1× | 1 | — | part |
| 2 | Microcontroller | mcu | 1× | 1 | — | part |
| 3 | Bare PCB | pcb-bare | 1× | 1 | — | part |
| 4 | Keypad | time-delay-safe-keypad | 1× | 1 | — | part |
| 5 | LCD Panel | lcd-panel | 1× | 1 | — | part |
| 6 | Backup Battery | time-delay-safe-backup-battery | 1× | 1 | — | part |
| 7 | Battery Charger | time-delay-safe-battery-charger | 1× | 1 | — | part |
| 8 | Connector | connector | 3× | 3 | — | part |
| 9 | Power Supply | power-supply | 1× | 1 | — | part |
Used in 1 assembly
Sourcing — likely vendors
Companies that make this · indicative price $1–$200 · MOQ & lead are typical| Vendor | HQ | Specialty | MOQ | Lead time |
|---|---|---|---|---|
| 🇨🇳JLCPCB jlcpcb.com ↗ | Shenzhen, CN | PCB fabrication | 100 pcs | 2–4 wks |
| 🇨🇳PCBWay pcbway.com ↗ | Shenzhen, CN | PCB fab & assembly | 100 pcs | 2–4 wks |
| scc.com.cn ↗ | Shenzhen, CN | PCB manufacturer | 100 pcs | 2–4 wks |
| shogini.com ↗ | Mumbai, IN | PCB manufacturer | 100 pcs | 2–4 wks |
| venture.com.sg ↗ | Singapore | Electronics contract mfg | 100 pcs | 2–4 wks |