| Electronics > Repair |
| LAN tester with burned IC |
| << < (5/5) |
| magic:
The chip clearly contains both an oscillator and a counter, and apparently pressing the button even puts it into a "slow" mode. Sounds like it's some dirt cheap Chinese microcontroller with appropriate firmware. Even if you could somehow identify and buy the MCU, it's still worthless without the code. |
| madires:
Why so pessimistic? It would be a nice weekend project with a simple circuit and a bit of coding. |
| amyk:
According to https://electronics.stackexchange.com/questions/34447/can-anyone-identify-the-microcontroller-on-an-hc-sr04 that pinout could be EM78P153S or similar series: https://i.sstatic.net/Pz8cD.png |
| Zlobnick:
Thanks a lot everyone, I'll definitely post the results if I ever get it working :-+ |
| Navigation |
| Message Index |
| Previous page |