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Std EditionNanopi Neo Core RS485 "hat"

Profile:NanoPI Neo Core RS485 "hat"

License: Public Domain

Published Time:2022-02-22 15:11:54
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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...

Documents
ID Name Designator Footprint Quantity
1 1uF C1,C2,C3,C4,C5 C0805 5
2 100nf C6,C7 C0805 2
3 KF2EDGR-5.08-5P CN1 CONN-TH_5P-P5.08_KF2EDGR-5.08-5P 1
4 PINHD-1X4 DEBUG 1X4 1
5 HY911105AE J1 RJ45-TH_HR911105A 1
6 PINHD-1X12 JP1-LEFT1,JP1-LEFT2,JP2-RIGHT1,JP2-RIGHT2 1X12 4
7 PINHD-1X10 JP2-RIGHT,JP3-LEFT 1X10 2
8 0805G (Green) PWRLED1,RXLED1,TXLED1 LED0805-RD_GREEN 3
9 BSS123_C397175 Q1 SOT-23_L2.9-W1.3-P1.90-LS2.4-BR 1
10 2N7002 Q2,Q3 SOT-23-3_L2.9-W1.3-P1.90-LS2.4-BR 2
11 560Ω R1,R2,R7 R0805 3
12 10kΩ R3,R4,R5-RS,R6-RS R0805 4
13 330Ω R5,R6 R0805 2
14 120Ω R8-RS R0805 1
15 MAX481CSA+ U1 SOIC-8_L4.9-W3.9-P1.27-LS6.0-BL 1

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