

Communication Board
- Size
- 103 × 100 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 50
- Nets
- 68
- Pads
- 220
- Tracks, vias
- 537, 19
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 18 Sep 2024
- Updated
- 5 Nov 2024
Overview
Communication Board is an open-source printed circuit board by RoboFEI, from the RoboFEI/Eletronics repository on GitHub. It is a 2-layer board of 103 × 100 mm with 50 parts on 68 nets, routed with 537 tracks and 19 vias.
It is built around the MAX485ED, FT232RL and FE1.1S. Its parts include 14 resistors, 10 capacitors, 7 diodes, 4 ICs and 4 connectors.
Main components
3MAX485ED
SOP-8-40℃~+85℃ 1 1 1mA 32 4.75V~5.25V 5Mbps Half-Duplex Transceiver ±8kV SOP-8 RS-485 / RS-422 ICs ROHSHTCRS-485 / RS-422 ICsFT232RL
SSOP-28-208mil-40℃~+85℃ 3.3V~5.25V、4V~5.25V USB 2.0 USB to UART SSOP-28-208mil USB Converters ROHSFTDIUSB ConvertersFE1.1S
SSOP-28USB 2.0 USB Hub SSOP-28 USB Converters ROHSTerminus TechUSB Converters
README
README.mdEletronics
Parts
50| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | 0.1uF | Capacitor_SMD:C_1206_3216Metric | C4, C6, C7, C9, C10 |
| 4 | , , , | ||
| 4 | 270 | Resistor_SMD:R_1206_3216Metric | R8, R9, R10, R11 |
| 3 | 10uF | Capacitor_SMD:C_1206_3216Metric | C3, C5, C8 |
| 3 | 330 | Resistor_SMD:R_1206_3216Metric | R2, R3, R4 |
| 2 | 22pF | Capacitor_SMD:C_1206_3216Metric | C1, C2 |
| 2 | 680 | Resistor_SMD:R_1206_3216Metric | R12, R14 |
| 2 | FT232RL | Package_SO:SSOP-28_5.3x10.2mm_P0.65mm | U2, U3 |
| 1 | 100K | Resistor_SMD:R_1206_3216Metric | R6 |
| 1 | 10K | Resistor_SMD:R_1206_3216Metric | R7 |
| 1 | 120 | Resistor_SMD:R_1206_3216Metric | R13 |
| 1 | 2K7 | Resistor_SMD:R_1206_3216Metric | R1 |
| 1 | 47K | Resistor_SMD:R_1206_3216Metric | R5 |
| 1 | Crystal 12MHz - ECS | Humanoid:Crystal 12MHz - ECS | Y1 |
| 1 | FE1.1s | Package_SO:SSOP-28_3.9x9.9mm_P0.635mm | U1 |
| 1 | HUB_PWR | LED_SMD:LED_1206_3216Metric_Pad1.42x1.75mm_HandSolder | D1 |
| 1 | IMU | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J2 |
| 1 | IMU_RX | LED_SMD:LED_1206_3216Metric_Pad1.42x1.75mm_HandSolder | D5 |
| 1 | IMU_TX | LED_SMD:LED_1206_3216Metric_Pad1.42x1.75mm_HandSolder | D4 |
| 1 | LOGO | Humanoid:logo_media | G*** |
| 1 | MAX485E | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U4 |
| 1 | MTR_RX | LED_SMD:LED_1206_3216Metric_Pad1.42x1.75mm_HandSolder | D7 |
| 1 | MTR_TX | LED_SMD:LED_1206_3216Metric_Pad1.42x1.75mm_HandSolder | D6 |
| 1 | Mini Fuse Socket | Humanoid:Mini Fuse Socket | J3 |
| 1 | USB_1 | LED_SMD:LED_1206_3216Metric_Pad1.42x1.75mm_HandSolder | D3 |
| 1 | USB_2 | LED_SMD:LED_1206_3216Metric_Pad1.42x1.75mm_HandSolder | D2 |
| 1 | USB_IN | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J1 |
| 1 | XM_conn | Humanoid:XM_conn_vertical-B4B-EH-A | J4 |
The 45 most common of 50 parts.
Questions
How big is the Communication Board PCB?
It measures 103 × 100 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Communication Board use?
50 parts, built around the MAX485ED, FT232RL and FE1.1S. 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 Communication Board KiCad files?
From the RoboFEI/Eletronics repository on GitHub, at the commit this page was made from: the board is Communication_Board/Communication_Board/Communication_Board.kicad_pcb and its schematic Communication_Board/Communication_Board/Communication_Board.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Communication Board design in my own project?
Its repository states no licence, so its author keeps all rights: ask RoboFEI before reusing the design.
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