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Top side PCB
About three years ago,I bought a USB data cable to use with T610 mobile phone.I can’t remember what is the model just know it is made in China.Now I have a new model mobile phone and my USB data cable not used at all.Therefore, I want to modify it to use with my microcontroller projects that use rs232 communication like a USB to RS232 converter.If you have this cable and want to modify this article may help you. Read more

Firmware v1.0
Hi-tech PICC source code
This is a PIC based water level detector.Why I choose PIC ? First I have a lot of them for my DIY projects,second I want to use this project with 4.5V batteries and PIC Micro has the sleep mode which has very low power consumption,so the life of the battery can be extended.Most of time of this circuit operates in the sleep mode and wake-up from sleep through watchdog time-out every about 2 second. Read more