The basestation is responsible for setting up and connection between the PC and the robots themselves. At the moment we have two types of basestation, old and new basestation. At the time of writing, 'new basestation' is almost finished, but not yet.
The basestation that is currently in use consists out of a standard Nucleo development board (nucleo f767zi), with a custom PCB slapped on-top of it that hosts two communication chips (SX1280), some LEDs and a display connection. We have a total of three of these stations.
One basestation can only connect to one team (yellow or blue) at the time. This means that if you want to play a game against yourself, you will need two separate basestations.
The new basestation has quite some improvements about which you can read in our TDP from 2023 (link). These basestations should be more stable, have faster USB rates and directly support screens.
Updated 29-08-2023, using the Basestation schematic and BOM
Designator | Order code | Component name | Description | Value |
3V3, 5V, Active, LED1, LED2, LED3, RX, TX, USB | LED | |||
C1, C3, C4, C7, C8, C36 | KEMET C0805C104M3RACTU | Capacitor | CAP 100nF 25V ±20% 0805 (2012 Metric) Thickness 1mm SMD | 100nF, 25V 20% |
C2, C5, C6, C9, C10, C11, C12, C13, C14, C15, C16, C17, C18, C19, C20, C21, C22, C23, C24, C25, C26, C30, C34, C37, C38, C39, C40, C41 | Capacitor | 100nF | ||
C27, C28 | Capacitor | WCAP-PSHP Aluminum Polymer Capacitor, V-Chip, SMT, D8xH8.7mm, 68uF, 20V | 68uF, 20V | |
C29, C33 | Capacitor | 10uF | ||
C31 | Capacitor | 12.5nF | ||
C32 | Capacitor | 12.5uF | ||
C35 | Capacitor | 12.5uF | ||
D1 | PMEG40T50EPX | Schottky Diode | DIODE SCHOTTKY 40V 5A CFP5 | 40V, 5A |
F1, F2 | Fuse | |||
IC1 | Low Dropout Regulator | LDO Regulator, 1.3A, 3.3 V | ||
J | Micro SD Holder | 10 _8 + 2_ Position Card Connector Secure Digital - microSDâ„¢ Surface Mount, Right Angle Gold | ||
J1 | 10118192-0001LF | Connector | Micro USB B Type Receptacle, -55 to 85 degC, 5-Pin SMD, RoHS, Tape and Reel | |
L1 | B82462-G4 | Inductor | EPCOS, B82462-G4 Shielded Wire-wound SMD Inductor with a Ferrite Core, 10 μH ±20% Wire-Wound 3.4A Idc | 10 μH ±20% |
L2, L3, L4, L5, L6, L7, L8, L9 | 742792641 | Ferrite Bead | SMD EMI Suppression Ferrite Bead WE-CBF, Z = 300 Ohm | 300R, 2A |
P1 | Header | JTAG and usb header | ||
P2, P5, P6, P7, P8 | PMPB27EPA | P-Channel MOSFET | P-channel enhancement mode Field-Effect Transistor (FET) in a leadless medium power DFN2020MD-6 (SOT1220) Surface-Mounted Device (SMD) plastic package using Trench MOSFET technology. | |
P3 | Header | Header, 2-Pin | ||
P4 | Connector | XT60 | ||
P9 | Header | Header, 2-Pin | ||
P10 | Connector | 2 Way Through Hole SIP Switch SPST | ||
P11 | RAPC712X | Connector | Conn Power PL 2 POS Solder RA Thru-Hole 3 Terminal 1 Port Bulk | |
R1, R2 | Resistor | 12k | ||
R3, R4, R5, R6, R7, R8, R9, R16, R17 | Resistor | 1k | ||
R10, R14, R18, R19, R20 | Resistor | 150k | ||
R11 | Resistor | 10.2k | ||
R12 | Resistor | 1.96k | ||
R13, R21 | Resistor | 10.4k | ||
R15 | Resistor | 10.4k | ||
R22 | CAT16-473J4LF | Resistor | Resistor array of 4 47kOhm resistors (1206) | 47k |
SCREEN | Connector | FPC connector 20 pin 1mm pitch | ||
SW1 | Button | TL 1105 - E switch | ||
Switch | Switch | 4 Way Surface Mount DIP Switch SPST, Raised Actuator Slide Actuator | ||
SX_RX, SX_TX | E28-2G4M12S | Wireless transceiver | EBYTE E28-2G4M12S SX1280 2.4G LoRa Bluetooth Module | |
U1 | USB3300-EZK-TR | Connector | ||
U2 | STM32F767ZIT6 | Microcontroller | High-performance and DSP with FPU, ARM Cortex-M7 MCU with 2 Mbytes Flash, 216 MHz CPU, Art Accelerator, L1 cache, SDR… | |
U3 | TPS54332DDA | Step Down Voltage Converter | Conv DC-DC Single Step Down 3.5V to 28V 8-Pin HSOP EP Tube | |
X1, X2 | Crystal | 24MHz Oscillator 5×3.2 | 24MHz |