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Brickteam-RO
STM32-powered real-time maze generator and solver built for the Robochallenge 2026 - Freestyle Showcase University competition
| Reference | Value | Description |
|---|---|---|
| U1 | STM32F103C8Tx | STMicroelectronics Arm Cortex-M3 MCU, 64KB flash, 20KB RAM, 72 MHz, 2.0-3.6V, 37 GPIO, LQFP48 |
| U2 | CH340C | USB serial converter, crystal-less, UART, SOIC-16 |
| U3,U4 | TPS5420D | Adjustable Output, 2A Step-Down Converter, 5.5V-36V Input, 500kHz Switching Frequency |
| U5 | AMS1117-3.3 | 1A Low Dropout regulator, positive, 3.3V fixed output, SOT-223 |
| U6 | PCA9306DCUR | Dual bidirectional I2C Bus and SMBus voltage level translator, SO-8 |
| U7 | 74HC138 | 3-to-8 line decoder/multiplexer inverting, DIP-16/SOIC-16/SSOP-16 |
| C1,C2 | 20pF | Unpolarized capacitor, small symbol |
| C3,C4 |
|---|
| 12pF |
| Unpolarized capacitor, small symbol |
| C5-C15,C26 | 100nF | Unpolarized capacitor, small symbol |
|---|
| C16,C21 | 10nF | Unpolarized capacitor, small symbol |
|---|
| C17,C18,C20,C22,C24,C25,C27 | 10uF | Unpolarized capacitor, small symbol |
|---|
| C19,C23 | 220uF | Polarized capacitor, small US symbol |
|---|
| D1-D3 | B340 | 40V 3A Schottky Barrier Rectifier Diode, SMC |
|---|
| J1 | BOOT PIN HEADER | Generic connector, single row, 01x03, script generated (kicad-library-utils/schlib/autogen/connector/) |
|---|
| J2 | ST-Link | Generic connector, single row, 01x04, script generated (kicad-library-utils/schlib/autogen/connector/) |
|---|
| J3 | UART_USB | USB 2.0-only 16P Type-C Receptacle connector |
|---|
| J4 | I2C_HEADER | Generic connector, single row, 01x04, script generated (kicad-library-utils/schlib/autogen/connector/) |
|---|
| J5 | KPJX-4S-S | 4 (Power) Position Circular Connector Jack, Female Sockets Solder |
|---|
| J6 | SPI_TEST | Generic connector, single row, 01x05, script generated (kicad-library-utils/schlib/autogen/connector/) |
|---|
| J7,J9,J11,J13,J15 | M20-7820646 | M20: 6 Pos Receptacle SIL Straight 3mm THT Connector 8.5mm high Tin |
|---|
| J8,J10 | Conn_01x04 | Generic connector, single row, 01x04, script generated (kicad-library-utils/schlib/autogen/connector/) |
|---|
| J17 | Terminal 1 | Generic screw terminal, single row, 01x02, script generated (kicad-library-utils/schlib/autogen/connector/) |
|---|
| J18 | Terminal 2 | Generic screw terminal, single row, 01x02, script generated (kicad-library-utils/schlib/autogen/connector/) |
|---|
| J19-J23 | Terminal Block | Generic screw terminal, single row, 01x03, script generated (kicad-library-utils/schlib/autogen/connector/) |
|---|
| L1,L2 | 22uH | Inductor, small symbol |
|---|
| R1,R17,R18 | 100k | Resistor, small US symbol |
|---|
| R2-R6,R10,R11 | 10k | Resistor, US symbol,Resistor, small US symbol |
|---|
| R7,R8,R13-R16 | 5.1k | Resistor, small US symbol |
|---|
| R9 | 34.8k | Resistor, small US symbol |
|---|
| R12 | 30.9k | Resistor, small US symbol |
|---|
| R19 | 0.5 | Resistor, small US symbol |
|---|
| SW1 | STM_RST | Push button switch, generic, two pins |
|---|
| SW2 | GEN_MAZE | Push button switch, generic, two pins |
|---|
| SW3 | TOGGLE_MAZE | Push button switch, generic, two pins |
|---|
| SW4 | SOLVE_MAZE | Push button switch, generic, two pins |
|---|
| Y1 | 8MHz | Two pin crystal |
|---|
| Y2 | 32.768KHz | Two pin crystal |
|---|