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STD Nanopi Neo Core RS485 "hat"
License: Public Domain
Mode: Editors' pick
- 0
Update time：
2022-09-02 08:23:09
Creation time：
2022-02-22 07:11:54
Description
RS485 "hat" to NanoPi Neo Core with debug UART and LAN connector.
PCB is same size than Raspberrypi 4 so it should fit nicely to RPI cases.
RS485 is connected to UART1, so that needs to be enabled from configuration of Linux Distribution
I am no electronics expert, schematic for RS485 is taken from Joy-IT RPI RS485 shield
https://joy-it.net/en/products/ARD-RS485
Disclaimer: use at your own risk.
If used on some project i would love to get somekind of message how it works and such...
Design Drawing
schematic diagram
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PCB
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| ID | Name | Designator | Footprint | Quantity | BOM_Supplier | BOM_Supplier Part | BOM_Manufacturer | BOM_Manufacturer Part |
|---|---|---|---|---|---|---|---|---|
| 1 | 1uF | C1,C2,C3,C6,C7,C13,C10 | C0805 | 7 | LCSC | C28323 | SAMSUNG | CL21B105KBFNNNE |
| 2 | 100nf | C4,C5 | C0805 | 2 | LCSC | C152857 | Huaxin S&T | 0805F105M500 |
| 3 | 330Ω | R5,R6,R1,R2,R7,R8,R9,R10 | R0805 | 8 | LCSC | C17630 | UniOhm | 0805W8F3300T5E |
| 4 | 10kΩ | RS1,RS2,R3 | R0805 | 3 | LCSC | C17414 | UniOhm | 0805W8F1002T5E |
| 5 | 120Ω | RS3 | R0805 | 1 | LCSC | C17437 | UniOhm | 0805W8F1200T5E |
| 6 | MAX485CSA+T | U1 | SOIC-8_L4.9-W3.9-P1.27-LS6.0-BL | 1 | LCSC | C9945 | MAXIM | MAX485CSA+T |
| 7 | 10.0 180° ZCJB-HJ | USB1 | USB-A-TH_ZCJB-HJ | 1 | LCSC | C2681562 | SHOU HAN(首韩) | 10.0 180° ZCJB-HJ |
| 8 | MICRO-01-G2P2-A1T2 | USBPWR | MICRO-USB-SMD_MICRO-01-G3P3-A1T2 | 1 | LCSC | C2682508 | Yuandi(台湾元迪) | MICRO-01-G2P2-A1T2 |
| 9 | 0805G (Green) | BOOT,CLOUD,I-NET,PWRLED1,RXLED1,TXLED1 | LED0805-RD_GREEN | 6 | LCSC | C84256 | NATIONSTAR | FC-2012HRK-620D |
| 10 | 2kΩ | R4,R16 | R0805 | 2 | LCSC | C17604 | UniOhm | 0805W8F2001T5E |
| 11 | 2KΩ | R11,R12,R13,R14,R15 | R0805 | 5 | LCSC | C17604 | UniOhm | 0805W8F2001T5E |
| 12 | ULN2003ADR | U2 | SOIC-16_L9.9-W3.9-P1.27-LS6.0-BL | 1 | LCSC | C7512 | TI | ULN2003ADR |
| 13 | 330pF | C8 | C0805 | 1 | LCSC | C152857 | Huaxin S&T | 0805F105M500 |
| 14 | !00nf | C9 | C0805 | 1 | LCSC | C152857 | Huaxin S&T | 0805F105M500 |
| 15 | 22uF | C11 | C0805 | 1 | LCSC | C152857 | Huaxin S&T | 0805F105M500 |
| 16 | 220uf | C12 | C0805 | 1 | LCSC | C152857 | Huaxin S&T | 0805F105M500 |
| 17 | 470pF | C14 | C0805 | 1 | LCSC | C309041 | CCTC | TCC0805X7R471K500DT |
| 18 | AS0BC21-S40BB-7H | LTE | CONN-SMD_AS0BC21-S30BB-7H | 1 | LCSC | C2761526 | FOXCONN(富士康) | AS0BC21-S40BB-7H |
| 19 | HYCW300-SIM06-150B | SIM | SIM-SMD_HYC_HYCW300-SIM06-150B | 1 | LCSC | C2962044 | 华宇创 | HYCW300-SIM06-150B |
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