LancO’s SI Programmer Simplification

Figure 1 

The simplification of LanCo’s SI programmer is aimed to be used with non-inverted integrated circuit.

There are microcontrollers which are readily available in the market which makes them popular. These microcontrollers are the ATmega8 and ATmega32 that have inverted reset and do not work with other circuits. Doing this project will resolve the issues regarding the non-inverted ICs.

One would know if the programmer is suitable for a project by doing a check on the Reset pin of the AVR in the datasheet where a bar name may be found. The Reset pin will have a bar on the name on it and it looks like a circle on the outer side of the pin.

The project uses the BC547 IC where the Base and the Emitter is proved to be short circuited by doing a debugging process. A multimeter in diode mode is being used to check if the BC547 is working properly. During the testing or checking of the transistor, a voltage drop of around 0.7V should be measured between the base and the emitter. Doing this could save a valuable time of debugging which could reach 3 hours or more time.