Repair Linksys WAG200G wireless router

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Low Voltage Setting for PIC microcontroller

My Slave Flash didn't fire with camera's flash, don't know why.
So I developed a new flash controller using PIC microcontroller.

But the problem is,
PIC 16F628A will work on at least 4.3 volt of power supply.
2 cells of rechargable battery can only provide up to 2.4 volt.
After asking on Pantip's webboard, I got the answer from Professor.
I should tried setting Brown out reset=Disable, and it works!!!
It works even at 1.7 volt. :D

To set Brown out reset=Disable in Mikroelektronika mikroC,
Click on Project -> Edit Project, then place checkmark on BOREN_OFF.
If you don't use crystal higher than 4 MHz, you can remove checkmark on HS_OSC,
and place checkmark on XT_OSC to reduce power comsumption.

PIC VU Meter

I spent 2 days with this.
VU Meter using PIC Microcontroller.

No audio cable needed. Just plug in the power cord.
It can be placed anywhere. Very high sensitive microphone can receive even whisper.
(IC LM386 which are used in spy microphone circuit.)
PIC 16F628A microcontroller is used to do DSP (Digital Signal Processing) and AGC (Auto volume gain controller).
Currently it has 12 modes of running light.
If there is no sound for a while, it will switch to running light mode.
Then switch back to VU meter when sound was detected again.






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USB PIC Programmer

The Serial PIC programmer shipped with i-Style book doesn't work with USB to Serial converter, although it passed initialization process.
So I decided to buy a new USB programmer, very expensive programmer, ET-PGM PIC USB V1, 1500 BHT.

Its speed is sooooo impressive, about 1-300 times faster than the old one!!!
It also has ICD2 (RJ-11 - telephone jack) port, so it can be used as software oscilloscope too.
This example circuit receives 38kHz infrared signal from TV remote control.

I think it's a little cheap now. ;-)

Auto Fish Feeder

PIC 16F627A microcontroller was used.
There are ROM 1kB , RAM 256 bytes.
Can choose frequency per day (1-6 times a day).
Can choose feeding level (1-10 level).
The food in syringe is enought for about 1-1.5 month.








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I-Style PIC Microcontroller Learning Kit

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