pinewood_timer
julia-laine-11
Timer system for a pinewood derby track.
Components (35)
| Reference | Value | Description |
|---|---|---|
| U1,U6,U12 | 74HC138 | 3-to-8 line decoder/multiplexer inverting, DIP-16/SOIC-16/SSOP-16 |
| U2-U5 | TDCR1050M | |
| U7,U8,U18 | TLC59210IN | led driver |
| U10 | AMS1117-3.3 | 1A Low Dropout regulator, positive, 3.3V fixed output, SOT-223 |
| U11 | STM32L151CBTxA | STMicroelectronics Arm Cortex-M3 MCU, 128KB flash, 32KB RAM, 32 MHz, 1.65-3.6V, 37 GPIO, LQFP48 |
| U13 | 74LS47 | BCD to 7-segment Driver, Open Collector, 30V outputs |
| U14,U16,U19,U21 |