pinewood_timer
julia-laine-11
Timer system for a pinewood derby track.
Components (31)
| Reference | Value | Description |
|---|---|---|
| U1 | S16B-PHDSSLFSN | |
| U2 | AMS1117-3.3 | 1A Low Dropout regulator, positive, 3.3V fixed output, SOT-223 |
| U3 | STM32F091RCTx | STMicroelectronics Arm Cortex-M0 MCU, 256KB flash, 32KB RAM, 48 MHz, 2.0-3.6V, 52 GPIO, LQFP64 |
| C1,C6-C8,C12,C13 | 100nF | Unpolarized capacitor |
| C2,C5 | 10uF | Unpolarized capacitor |
| C3,C4 | 22uF | Unpolarized capacitor |
| C9 | 10nF | Unpolarized capacitor |
| C10,C11 | 1uF | Unpolarized capacitor |
| C14,C15 | 10pF | Unpolarized capacitor |
| D1,D3 | zener | |
| D2,D4-D13 | LED | Light emitting diode |
| FB1 | FerriteBead | Ferrite bead |
| J1 | 559592430 | |
| J2 | status bot | |
| J3 | status eot | |
| J4 | B02B-XASK-1LFSN | |
| J5 | race start | Generic connector, single row, 01x03, script generated |
| J6 | usb-ttl | Generic connector, single row, 01x06, script generated |
| J7 | jtag | |
| J8 | KUSBX-SMT-CS-6-BTR | |
| R1 | 1k5 | Resistor, US symbol |
| R2-R7 | 50 | Resistor, US symbol |
| R8 | 10k | Resistor, US symbol |
| R9-R12 | 220 | Resistor, US symbol |
| R13 | R_US | Resistor, US symbol |
| SW1 | ON-BOARD | Single Pole Single Throw (SPST) switch |
| SW2 | BOT | Single Pole Single Throw (SPST) switch |
| SW3 | BOOT | Switch, single pole double throw |
| SW4 | SW_SPST | Single Pole Single Throw (SPST) switch |
| TP1-TP8 | TestPoint | test point |
| Y1 | Crystal_GND24 | Four pin crystal, GND on pins 2 and 4 |