2 layers27.9 × 31.8 mm
Ee198 final project
ahadrauf2020/microsd_bluetooth_audiobook
Our class project for EE 198: a MicroSD card audiobook reader, transmitted over Bluetooth
23 parts
2 layers95 × 34 mm
Leap bot
hoani/leap-botA line following robot - built to test out KiCad 5.1
- Size
- 95 × 34 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 98
- Nets
- 86
- Pads
- 318
- Tracks, vias
- 881, 165
- Pours
- 5
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 28 May 2020
- Updated
- 31 May 2020
Overview
Leap bot is an open-source printed circuit board by hoani, from the hoani/leap-bot repository on GitHub, published under the MIT licence. It is a 2-layer board of 95 × 34 mm with 98 parts on 86 nets, routed with 881 tracks and 165 vias.
It is built around the ESP32-WROOM-32D, DRV8872DDA and ADP2302ARDZ-3.3-R7, with the FT230XS-R, QRE1113GR and BM06B-SRSS-TB among its other parts. Its parts include 31 resistors, 18 capacitors, 12 diodes, 11 ICs and 4 connectors. It belongs with the ESP32 boards of this library.
Main components
9
ESP32-WROOM-32D
-- WiFi Modules ROHSEspressif SystemsWiFi Modules
DRV8872DDA
SO-8-40℃~+125℃ 3.6A 565mΩ Interleaved conduction protection、Current sensing/regulation function Yes SO-8 Brushed DC Motor Drivers ROHSTexas InstrumentsBrushed DC Motor Drivers
ADP2302ARDZ-3.3-R7
SOIC-8-EP-40℃~+125℃@(TJ) 1 2A 3.3V 3V~20V 700kHz Buck Buck Built-in Fixed No SOIC-8-EP DC-DC Converters ROHSAnalog DevicesDC-DC Converters
FT230XS-R
SSOP-16-150mil-40℃~+85℃ 125uA 3.3V~5V 8mA USB 2.0 USB to UART SSOP-16-150mil USB Converters ROHSFTDIUSB Converters
QRE1113GR
SMD-4P1mm 20mA SMD-4P Reflective Optical Interrupters ROHSonsemiReflective Optical Interrupters
BM06B-SRSS-TB
Header SR 1.0 SMT top entry, 1mm pitchJSTUncategorised
FDV301N
SOT-23-55℃~+150℃ 1 N-channel 1.06V 1.3pF 220mA 25V 350mW 5Ω@2.7V 6pF 700pC@4.5V 9.5pF N-Channel SOT-23 MOSFETs ROHSonsemiMOSFETsBAT54C
SOT-231 Pair Common Cathode 200mA 2uA@25V 30V 600mA 800mV@100mA SOT-23 Schottky Diodes ROHSNexperiaSchottky Diodes
MPZ2012S101AT000
0805-55℃~+125℃ 1 100Ω@100MHz 20mΩ 4A ±25% 0805 Ferrite Beads ROHSTDKFerrite Beads
README
README.mdRevision 0.0.0
Pinout Allocation
| GPIO Pin | Usage | Function |
|---|---|---|
| 25 | PWM | Motor1 drive1 |
| 26 | PWM | Motor1 drive2 |
| 33 | INPUT | Motor1 nFault |
| 27 | INPUT | Encoder1 A |
| 14 | INPUT | Encoder1 B |
| 35 | PWM | Motor2 drive1 |
| 32 | PWM | Motor2 drive2 |
| 34 | INPUT | Motor2 nFault |
| 19 | INPUT | Encoder2 A |
| 18 | INPUT | Encoder2 B |
| 7 | OUTPUT | Power Front Light Sensors |
| 13 | ADC2-4 | Front-Left Light Sensor |
| 15 | ADC2-3 | Front Level Sensor |
| 36 | ADC1-0 | Front-Right Light Sensor |
| 8 | OUTPUT | Power Back Light Sensors |
| 12 | ADC2-5 | Back-Left Light Sensor |
| 2 | ADC2-2 | Back Level Sensor |
| 4 | ADC2-0 | Back Right Level Sensor |
| 3 | UART | Prog_TX |
| 1 | UART | Prog_RX |
| 6 | OUTPUT | LED0 |
| 9 | OUTPUT | LED1 |
| 22 | OUTPUT | LED2 |
| 16 | OUTPUT | LED3 |
| 11 | OUTPUT | LED4 |
| 10 | OUTPUT | LED5 |
| 21 | OUTPUT | LED6 |
| 23 | OUTPUT | LED7 |
| 39 | - | |
| 0 | BOOT | - |
| 17 | - | |
| 5 | - |
Parts
98| Qty | Value | Footprint | References |
|---|---|---|---|
| 15 | 100R | Resistor_SMD:R_0805_2012Metric | R6, R7, R8, R9, R10, R11, R12, R16, R17, R18, R19, R20, R21, R28, R29 |
| 12 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | H3, H4, H5, H6, H7, H8, H9, H10, H11, H12, H13, H14 |
| 10 | 100nF | Capacitor_SMD:C_0805_2012Metric | C2, C4, C7, C8, C9, C10, C11, C12, C13, C16 |
| 6 | 33k | Resistor_SMD:R_0805_2012Metric | R13, R14, R15, R23, R24, R25 |
| 6 | QRE1113GR | OptoDevice:Everlight_ITR8307F43 | U1, U2, U3, U6, U7, U8 |
| 5 | 4.7uF | Capacitor_SMD:C_0805_2012Metric | C3, C5, C6, C14, C15 |
| 4 | 10k | Resistor_SMD:R_0805_2012Metric | R22, R26, R27, R30 |
| 4 | 56R | Resistor_SMD:R_0805_2012Metric | R2, R3, R4, R5 |
| 4 | BLUE | LED_SMD:LED_0805_2012Metric_Castellated | D1, D2, D3, D4 |
| 4 | RED | LED_SMD:LED_0805_2012Metric_Castellated | D5, D6, D7, D8 |
| 2 | 0R22 | Resistor_SMD:R_1206_3216Metric | R31, R32 |
| 2 | 1825910-6 | Button_Switch_THT:SW_PUSH_6mm | SW1, SW2 |
| 2 | 22uF | Capacitor_SMD:C_0805_2012Metric | C17, C18 |
| 2 | BM06B-SRSS-TB | Connector_JST:JST_SH_BM06B-SRSS-TB_1x06-1MP_P1.00mm_Vertical | J3, J4 |
| 2 | DRV8872DDA | Package_SO:Texas_HTSOP-8-1EP_3.9x4.9mm_P1.27mm_EP2.95x4.9mm_Mask2.4x3.1mm_ThermalVias | U10, U11 |
| 2 | FDV301N | Package_TO_SOT_SMD:SOT-23 | Q1, Q2 |
| 2 | MountingHole | MountingHole:MountingHole_4.3mm_M4 | H1, H2 |
| 2 | YELLOW | LED_SMD:LED_0805_2012Metric_Castellated | D11, D12 |
| 1 | 10nF | Capacitor_SMD:C_0805_2012Metric | C1 |
| 1 | 27R | Resistor_SMD:R_Array_Concave_2x0603 | RN1 |
| 1 | 33uH, 1.7A | Inductor_SMD:L_Bourns-SRN8040_8x8.15mm | L1 |
| 1 | 629105150521 | Connector_USB:USB_Micro-B_Wuerth_629105150521_CircularHoles | J1 |
| 1 | ADP2302ARDZ-3.3 | Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.29x3mm | U4 |
| 1 | BAT54C | Package_TO_SOT_SMD:SOT-23 | D9 |
| 1 | Conn_01x04_Male | Connector_JST:JST_XH_B4B-XH-A_1x04_P2.50mm_Vertical | J2 |
| 1 | ESP32-WROOM-32D | RF_Module:ESP32-WROOM-32 | U9 |
| 1 | FT230XS | Package_SO:SSOP-16_3.9x4.9mm_P0.635mm | U5 |
| 1 | GREEN | LED_SMD:LED_0805_2012Metric_Castellated | D10 |
| 1 | LOGO | leapbot:logo | SYM1 |
| 1 | MPZ2012S101AT000 | Resistor_SMD:R_0805_2012Metric | FB1 |
Questions
How big is the Leap bot PCB?
It measures 95 × 34 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Leap bot use?
98 parts, built around the ESP32-WROOM-32D, DRV8872DDA, ADP2302ARDZ-3.3-R7 and FT230XS-R. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Leap bot KiCad files?
From the hoani/leap-bot repository on GitHub, at the commit this page was made from: the board is leapbot.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Leap bot design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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