

Marta
Your Personal Companion Robot
- Size
- 66.5 × 70.8 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 29
- Nets
- 87
- Pads
- 203
- Tracks, vias
- 277, 0
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 12 Feb 2024
- Updated
- 2 Dec 2024
Overview
Marta is an open-source printed circuit board by arturandre, from the arturandre/Emo repository on GitHub. It is a 2-layer board of 66.5 × 70.8 mm with 29 parts on 87 nets, routed with 277 tracks and 0 vias.
It is built around the WS2812B. Its parts include 9 ICs, 6 connectors, 6 switches, 4 resistors and 1 diode. It belongs with the Raspberry Pi (Linux) boards of this library.
Main components
1README
README.mdEmo
Your Personal Companion Robot
Parts
29| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | Conn_01x08 | Connectors_JST:JST_XH_B08B-XH-A_08x2.50mm_Straight | J1, J2 |
| 1 | +3.3V | Pin_Headers:Pin_Header_Straight_1x04_Pitch2.54mm | J5 |
| 1 | +5V | Pin_Headers:Pin_Header_Straight_1x04_Pitch2.54mm | J6 |
| 1 | 220R | Resistors_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R3 |
| 1 | 2a | Resistors_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1 |
| 1 | 74HCT245 Level Shifter | Housings_DIP:DIP-20_W7.62mm | U3 |
| 1 | Conn_02x04_Odd_Even | Pin_Headers:Pin_Header_Straight_2x04_Pitch2.54mm | J3 |
| 1 | GND | Pin_Headers:Pin_Header_Straight_1x04_Pitch2.54mm | J4 |
| 1 | GPIO 13 | Connectors_JST:JST_XH_B02B-XH-A_02x2.50mm_Straight | SW5 |
| 1 | GPIO 26 | Connectors_JST:JST_XH_B02B-XH-A_02x2.50mm_Straight | SW6 |
| 1 | GPIO 5 | Connectors_JST:JST_XH_B02B-XH-A_02x2.50mm_Straight | SW3 |
| 1 | GPIO 6 | Connectors_JST:JST_XH_B02B-XH-A_02x2.50mm_Straight | SW4 |
| 1 | Left Speaker | Connectors_JST:JST_XH_B02B-XH-A_02x2.50mm_Straight | LS2 |
| 1 | MPU6050 Gyro + Accelerometer | footprints:MPU6050 | IC1 |
| 1 | ON/OFF Button | Connectors_JST:JST_XH_B02B-XH-A_02x2.50mm_Straight | SW2 |
| 1 | OnOffShim | footprints:OnOffShim | U1 |
| 1 | PAM8406 Audio Amplifier | footprints:PAM8406 | IC4 |
| 1 | PCM5102 Audio Stereo DAC | footprints:PCM5102 | IC3 |
| 1 | Power LED | Connectors_JST:JST_XH_B02B-XH-A_02x2.50mm_Straight | D1 |
| 1 | R | Resistors_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R4 |
| 1 | RDM6300 RFID Reader | footprints:RDM6300 | IC5 |
| 1 | RFID Antenna | Connectors_JST:JST_XH_B02B-XH-A_02x2.50mm_Straight | AE1 |
| 1 | RaspberryPiZeroW | footprints:RaspberryPiZeroW_UpSideDown | IC2 |
| 1 | Reset Button | Connectors_JST:JST_XH_B02B-XH-A_02x2.50mm_Straight | SW1 |
| 1 | Right Speaker | Connectors_JST:JST_XH_B02B-XH-A_02x2.50mm_Straight | LS1 |
| 1 | TCRT5000 IR Sensor | Connectors_JST:JST_XH_B04B-XH-A_04x2.50mm_Straight | U2 |
| 1 | WS2812B | Pin_Headers:Pin_Header_Straight_1x03_Pitch2.54mm | U4 |
| 1 | a | Resistors_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R2 |
Questions
How big is the Marta PCB?
It measures 66.5 × 70.8 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Marta use?
29 parts, built around the WS2812B. 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 Marta KiCad files?
From the arturandre/Emo repository on GitHub, at the commit this page was made from: the board is Circuit/EmoRobot/pcb/marta.kicad_pcb and its schematic Circuit/EmoRobot/EmoRobot.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Marta design in my own project?
Its repository states no licence, so its author keeps all rights: ask arturandre before reusing the design.
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