| Electronics > Projects, Designs, and Technical Stuff |
| RS232(?) Data port on cheap Chinese caliphers/comparators |
| (1/1) |
| silenter:
Hi everyone. I bought a long time ago one of those cheap chinese comparators that you can find off ebay: https://www.aliexpress.com/item/RS232-9holes-data-output-for-digital-indicator-electronic-indicator-data-output-link/1227581712.html Arguably this thing has a data port, but it came without a cable and I would like to get off some readings. There's not much I could find about the 4-lead port and/or the connector. They mention rs232, but I assume it's just about the bundled adapter. Before I spend some time on it (I would probably just solder 4 wires directly on the tracks), has somebody already tried to look into it and knows what sort of pinout/protocol is it? |
| sokoloff:
You're not the first to try this, of course. Have a look at: https://www.robotroom.com/Caliper-Digital-Data-Port.html https://hackaday.com/2010/12/15/reading-a-digital-caliper-with-a-microcontroller/ https://www.instructables.com/id/Reading-Digital-Callipers-with-an-Arduino-USB/ |
| SparkyFX:
check out TouchDRO, there are descriptions of the protocols found in various calipers. |
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