

A 2-layer PCB for a small sumobot including MSP430G2553, regulators, motor drivers, and IR receiver.
- Size
- 50 × 65 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 81
- Nets
- 57
- Pads
- 292
- Tracks, vias
- 863, 74
- Pours
- 49
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 13 Jun 2021
- Updated
- 28 Jun 2022
Overview
Nsumo is an open-source printed circuit board by artfulbytes, from the artfulbytes/nsumo_hardware repository on GitHub, published under the MIT licence. It is a 2-layer board of 50 × 65 mm with 81 parts on 57 nets, routed with 863 tracks and 74 vias.
It is built around the MSP430G2553IPW28, AMS1117-3.3 and RS3E075ATTB, with the B5819W among its other parts. Its parts include 21 connectors, 16 resistors, 15 capacitors, 9 diodes and 7 ICs. It belongs with the robots and motor control boards and the MSP430 boards of this library.
Main components
4MSP430G2553IPW28
TSSOP-28-40℃~+85℃ 1.8V~3.6V 10bit 16 Bit 16KB 16MHz 24 512Byte Built-in FLASH MSP430 CPU16 TSSOP-28 Microcontrollers (MCU/MPU/SOC) ROHSTexas InstrumentsMicrocontrollers (MCU/MPU/SOC)AMS1117-3.3
SOT-223-40℃~+125℃ 0.003%Vout 1 1.1V@(800mA) 15V 1A 3.3V 5mA 72dB@(120Hz) Fixed Over Current Protection、Short Circuit Protection、Thermal shutdown Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSAdvanced Monolithic SystemsVoltage Regulators - Linear, Low Drop Out (LDO) RegulatorsRS3E075ATTB
SOIC-8MOSFETsROHM SemiconductorB5819W
SOD-123-55℃~+125℃ 1.5A 1mA@40V 25A 40V 600mV@1A Standalone SOD-123 Schottky Diodes ROHSMDDSchottky Diodes
README
README.mdNsumo hardware
This repository contains the schematic and PCB design of Nsumo, a mini-class Sumobot (500g 10x10cm), created in KiCad, and manufactured by JLCPCB. It's a 2-layer PCB with microcontroller MSP430G2553IPW28, regulators 3.3V (AMS1117-3.3) and 5V (MP2359), two motor drivers TB6612FNG, IR receiver TSP382, and circuit protection (RS3E075AT).
Setup
Import the project into KiCad >6.0 and make sure you have the "default global symbol library table" and the "default footprint library" available. KiCad should find the 3Dmodels and symbols under libs/ automatically. You must manually import the footprints under libs/footprints/ (select "file/add library" from the menu in the footprint editor and add them to the project).
Parts
81| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | 100 | Resistor_SMD:R_0805_2012Metric | R10, R11, R13, R14, R16 |
| 5 | RED | LED_SMD:LED_0603_1608Metric | D1, D5, D7, D8, D9 |
| 4 | 0.1uF | Capacitor_SMD:C_0805_2012Metric | C9, C10, C11, C12 |
| 4 | MountingHole_Pad | MountingHole:MountingHole_2.2mm_M2_Pad_Via | H1, H2, H3, H4 |
| 3 | 10uF | Capacitor_SMD:C_0805_2012Metric | C1, C13, C14 |
| 2 | 10k | Resistor_SMD:R_1206_3216Metric | R8, R9 |
| 2 | 1k | Resistor_SMD:R_0805_2012Metric | R6, R7 |
| 2 | 470 | Resistor_SMD:R_0805_2012Metric | R4, R5 |
| 2 | 750mA | Fuse:Fuse_1206_3216Metric | F1, F2 |
| 2 | TB6612FNG | Custom_SSOP:SSOP-24_5.3x8.2mm_P0.65mm_LongPads | U3, U6 |
| 1 | 1 | Resistor_SMD:R_0805_2012Metric | R2 |
| 1 | 100k | Resistor_SMD:R_0805_2012Metric | R3 |
| 1 | 100nF | Capacitor_SMD:C_0603_1608Metric | C8 |
| 1 | 10nF | Capacitor_SMD:C_0805_2012Metric | C4 |
| 1 | 10uF | Capacitor_SMD:C_0603_1608Metric | C6 |
| 1 | 10uH | Inductor_SMD:L_Sunlord_MWSA0518_5.4x5.2mm | L1 |
| 1 | 1nF | Capacitor_SMD:C_0603_1608Metric | C5 |
| 1 | 1uF | Capacitor_SMD:C_0603_1608Metric | C7 |
| 1 | 1uF | Capacitor_SMD:C_0805_2012Metric | C2 |
| 1 | 22uF | Capacitor_SMD:C_0805_2012Metric | C15 |
| 1 | 47k | Resistor_SMD:R_0603_1608Metric | R1 |
| 1 | 47uF | Capacitor_SMD:C_1206_3216Metric | C3 |
| 1 | 49.9k | Resistor_SMD:R_0805_2012Metric | R12 |
| 1 | 9.53k | Resistor_SMD:R_0805_2012Metric | R15 |
| 1 | AMS1117-3.3 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U5 |
| 1 | B5819W | Diode_SMD:D_SOD-123 | D4 |
| 1 | BLUE | LED_SMD:LED_0603_1608Metric | D6 |
| 1 | BattConn0 | Connector_JST:JST_PH_S2B-PH-K_1x02_P2.00mm_Horizontal | J5 |
| 1 | BattConn1 | Connector_JST:JST_PH_S2B-PH-K_1x02_P2.00mm_Horizontal | J3 |
| 1 | GREEN | LED_SMD:LED_0603_1608Metric | D2 |
| 1 | I2C | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J6 |
| 1 | LED | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J12 |
| 1 | Ld_back_left | Custom_Connectors:Molex_PicoBlade_53048-0310_1x03_P1.25mm_Horizontal | J20 |
| 1 | Ld_back_right | Custom_Connectors:Molex_PicoBlade_53048-0310_1x03_P1.25mm_Horizontal | J22 |
| 1 | Ld_front_left | Custom_Connectors:Molex_PicoBlade_53048-0310_1x03_P1.25mm_Horizontal | J19 |
| 1 | Ld_front_right | Custom_Connectors:Molex_PicoBlade_53048-0310_1x03_P1.25mm_Horizontal | J21 |
| 1 | MOT_BACK_LEFT | Custom_Connectors:TerminalBlock_TE_282834-2_1x02_P2.54mm_Horizont | J17 |
| 1 | MOT_BACK_RIGHT | Custom_Connectors:TerminalBlock_TE_282834-2_1x02_P2.54mm_Horizont | J15 |
| 1 | MOT_FRONT_LEFT | Custom_Connectors:TerminalBlock_TE_282834-2_1x02_P2.54mm_Horizont | J16 |
| 1 | MOT_FRONT_RIGHT | Custom_Connectors:TerminalBlock_TE_282834-2_1x02_P2.54mm_Horizont | J14 |
| 1 | MP2359 | Package_TO_SOT_SMD:TSOT-23-6 | U2 |
| 1 | MSP430G2553IPW28 | Package_SO:TSSOP-28_4.4x9.7mm_P0.65mm | U4 |
| 1 | PWR | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J13 |
| 1 | RS3E075AT | Package_SO:SOP-8_3.9x4.9mm_P1.27mm | U7 |
| 1 | Range_sensor_front | Connector_Molex:Molex_PicoBlade_53048-0610_1x06_P1.25mm_Horizontal | J2 |
| 1 | Range_sensor_front_left | Connector_Molex:Molex_PicoBlade_53048-0510_1x05_P1.25mm_Horizontal | J4 |
| 1 | Range_sensor_front_right | Connector_Molex:Molex_PicoBlade_53048-0510_1x05_P1.25mm_Horizontal | J7 |
| 1 | Range_sensor_left | Connector_Molex:Molex_PicoBlade_53048-0510_1x05_P1.25mm_Horizontal | J1 |
| 1 | Range_sensor_right | Connector_Molex:Molex_PicoBlade_53048-0510_1x05_P1.25mm_Horizontal | J9 |
| 1 | SWD | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J11 |
| 1 | SW_DPST_x2 | Button_Switch_SMD:SW_Push_1P1T_NO_6x6mm_H9.5mm | SW1 |
| 1 | SW_SPST | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | SW2 |
| 1 | TSOP382xx | OptoDevice:Vishay_MINICAST-3Pin | U1 |
| 1 | UART | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J10 |
| 1 | UNUSED | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J8 |
| 1 | YELLOW | LED_SMD:LED_0603_1608Metric | D3 |
The 77 most common of 81 parts.
Questions
How big is the Nsumo PCB?
It measures 50 × 65 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Nsumo use?
81 parts, built around the MSP430G2553IPW28, AMS1117-3.3, RS3E075ATTB and B5819W. 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 Nsumo KiCad files?
From the artfulbytes/nsumo_hardware repository on GitHub, at the commit this page was made from: the board is nsumo.kicad_pcb and its schematic nsumo.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Nsumo 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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