RasPi4-UART-RS485
About the RasPi4-UART-RS485 PCB
RasPi4-UART-RS485 is an open source PCB design by noriakinakagawa, published on GitHub under the Custom license license. It is a 2-layer board measuring 65 × 56 mm, with 46 components from 14 distinct parts.
Other key parts include the 74LVC1G04, LTC6994xS6-1, ST1480ACDR, MPU-9250 and D24V50F5. By type, the board carries 17 ICs, 10 capacitors, 9 connectors, 8 resistors, 1 module and 1 diode.
From the project
Raspberry Pi 4 のUART 5chをRS485に変換したコマンド式サーボモータを動かすための基板データ
以下を追加して保存・再起動 dtoverlay=pi3-miniuart-bt dtoverlay=uart0 dtoverlay=uart2 dtoverlay=uart3 dtoverlay=uart4 dtoverlay=uart5 //inituartclock=169600000 // for RasPi5
Main components on the RasPi4-UART-RS485
RasPi4-UART-RS485 bill of materials (BOM)
46 components, 14 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 5 | 74LVC1G04 | SOT-353_SC-70-5 | U1, U2, U3, U4, U5 |
| 5 | LTC6994xS6-1 | TSOT-23-6 | U6, U7, U8, U9, U10 |
| 5 | ST1480ACDR | SOIC-8_3.9x4.9mm_Pitch1.27mm | U11, U12, U13, U14, U15 |
| 1 | MPU-9250 | MPU-9250 | U16 |
| 1 | D24V50F5 | D24V50F5 | U17 |
| 1 | Fan | F251R-05LB | M1 |
| 6 | B4B-EH | JST_EH_B4B-EH-A_1x04_P2.50mm_Vertical | J1, J2, J3, J4, J5, J6 |
| 1 | B2B-XH | JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | J7 |
| 1 | B2B-PH | JST_PH_B2B-PH-K_1x02_P2.00mm_Vertical | J8 |
| 1 | Conn_02x20 | PinSocket_2x20_P2.54mm_Vertical | P1 |
| 1 | LED | LED_0603 | D1 |
| 10 | 0.1u | C_0603 | C1, C2, C3, C4, C5, C6, C7, C8 +2 |
| 5 | 470k | R_0603 | R1, R2, R3, R4, R5 |
| 3 | 10k | R_0603 | R6, R7, R8 |
RasPi4-UART-RS485 design files
The KiCad project lives in the noriakinakagawa/RasPi4-UART-RS485 repository on GitHub; these links point at the commit this page was built from.
RasPi4-UART-RS485: common questions
How big is the RasPi4-UART-RS485 PCB?
The RasPi4-UART-RS485 measures 65 × 56 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the RasPi4-UART-RS485?
46 components, from 14 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the RasPi4-UART-RS485 design files?
From the noriakinakagawa/RasPi4-UART-RS485 repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.
Can I use the RasPi4-UART-RS485 design in my own project?
It is published under Custom license, which limits how it may be reused; read the license before building on it.