William Grill doesn't like people messing up his sock drawer, so he added an electronic lock that requires a user-defined sequence of key codes from three pushbuttons. The correct sequence opens the lock and turns on a status light. Enter the wrong sequence and an alarm circuit socks it to you with a noisy buzzer, flashing LED, or both. The designs use a Microchip Technology PIC12F509 microcontroller. Who knows what's in store for William's tie rack?
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| Amt | Part Description | Allied Part # |
| 1 | IC1-Microchip PIC12F509 MCU (8-pin DIP) | 383-0284 |
| 1 | Solenoid | 804-0116 |
| 1 | 10I.25F Capacitor (50V DC) | 613-0936 |
| 1 | 2.2I.25F Capacitor (50V DC) | 613-0710 |
| 1 | L3-LED, Green | 505-2101 |
| 2 | L1, L2-LED Red | 505-2117 |
| 1 | ASLM1-Mallory Sonalert | 854-0034 |
| 2 | Q1, Q2-IRLD024 Power MOSFET, N Channel | 503-0515 |
| 1 | 820I(C) Resistor (1/8W) | 840-0092 |
| 2 | 10KI(C) Resistor (1/8W) | 840-0043 |
| 1 | 100I(C) Resistor (1/8W) | 840-0076 |
| 1 | 330I(C) Resistor (1/8W) | 840-0028 |
| 1 | L78L05ACZ Voltage Regulator | 248-0683 |
| 2 | D1, D2-1N4148 Diode | 431-0614 |
| 2* | D3, D4-11DQ05 Schottky Diode | 503-0046 |
| 3 | K1,K2,K3-Pushbutton Switch | 676-0219 |
| 1 | AZ943-1AH-5DE Relay, %V DC Coil | 686-0175 |
| 1 | 8-Pin DIP Socket | 374-4541 |
| 2 | 3-Contact Terminal Block | 742-0083 |
| 1 | Battery Holder (3 AAA) | 839-2484 |
| 3 | Battery, AAA. Alkaline | 729-4092 |
| Get Build Instructions | ||
| Submit Your Gadget Freak Design | ||
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