EasyEDA User rodyne
rodyne
Public Project: 11 Footprint Package: 56 Likes: 29 Favorites: 25 Views: 13319

Replacement PCB For OP-320A HMI which gives partial Arduino compatability

1 year ago  

License: Public Domain

Status: Complete

ARDUINOHMILCD19264BPLCOPA-320A
Fork
Open in Editor

The PCB attaches to the back of the OP-320A unit, which is a cheap operator console panel you can get off aliexpress or ebay for about $50, you remove the PCB with the unit and attach this as a replacement to give arduino compatibility.

Wiring mostly copied from teensy++ and uno so something of a mix here, Uses a standard Arduino shield header but you will definitely need to adjust your sketches as some pins will be dedicated to the LCD and keypad. Also added two headers for the 4-pin relay boards and RS-232 boards that cost a dollar or two off ebay. All pins labelled for ease of use.

Note in my system I did not use the back plastic cover as it was going into another panel and the original back cover wont we deep enough to accommodate the unit so you will have to make a back housing and it will be deeper than the original OP-320A.

Second PCB seems to work OK with the bootloader supplied on the chip, the third version (here) has minor layout changes and should be 100% good.

Have Fun

Weighbridge HMI PLC

Weighbridge HMI PLC

Weighbridge HMI PCB

Weighbridge HMI PCB

Attachments

FilenameDownload
HMI.jpgDownload

BOM

IDValueQty.PackageComponentsManufacturer PartSupplierSeeedStudio
122010805R5
2SIP91HDR1X9KBD
3100n40805C24,C25,C4,C5
4LCM19264B1SINGLEROWHEADER1X20P
51N40011SOD123D2
6BUZZER1BUZZER-12MM-NS-KITSG2
72N70021WSOT-23Q2
810010805R1
9AT90USB646-AU1TQFP64-0.8-14X14MMU1
10ICSP1HDR2X3U2
11test1HDR1X6U3
12test2HDR1X8U4,U6
13test1HDR1X10U5
14XTALfast1CRYSTAL_HC-49UQ1
1510p20805C1,C2
16USB-MINIB1USB-MINI-B-SMD1U7
172220805R2,R3
1810K20805R4,R8
191u1C1210C3
20PWR1LED3MMD1
211K20805R6,R7
22PGM1LED3MMD4
23SPST_OFF2TACTILE-SWITCH-BOZRST,HWF/ALE
24V_REG_LM11171SOT223U9
25LM2576HVS-5.0NOPB1TS5BU10
26150u1CD127 12*12MM BOZL1
27ss341SMA-DIODED5
28220uF1ELECTRO-SMD-C-6MMCT1CS1E221M-CRE77SeeedStudio302030053
29100u1PANASONIC_SKV_CAPC6
30M03-SCREW-5MM1SCREWTERMINAL-5MM-3JP1
313266P-1-5021P250SQR9
32Relay1HDR1X6U8
33RS232-TTL1HDR1X4U11
3424V1LED3MMD3
351.5A 24V PTC1PTC1812LF1

Comments

rodyne

Note there is no firmware for this as it is a board for a client, however most of the pinouts are from the teensy++ and there are lots of sketches available to drive the LCD and the keyboard etc...

Add Comment