pinewood_timer
julia-laine-11
Timer system for a pinewood derby track.
Components (14)
| Reference | Value | Description |
|---|---|---|
| U1 | S16B-PHDSSLFSN | |
| U2,U3 | TLC59210IN | led driver |
| U4,U5 | 74HC138 | 3-to-8 line decoder/multiplexer inverting, DIP-16/SOIC-16/SSOP-16 |
| U6-U9 | SA39-12YWA | Single digit 7 segment display, yellow, common anode |
| 3V1-3V4,GND1-GND8 | TestPoint | test point |
| D1-D4 | LED | Light emitting diode |
| J1 | 559592430 | |
| M1-M20 | N-MOSFET | General Purpose PNP Transistors |
| PA11-PA14 | TP | test point (alternative shape) |
| R1-R16,R33-R36 | 150Ω | Resistor, small US symbol |
| R17-R32 | 47Ω | Resistor, small US symbol |
| R37-R40 | 220Ω | Resistor, small US symbol |
| R41-R44 | 56KΩ | Resistor, small US symbol |
| T1-T4 | TDCR1050M |