MPLAB

for this project, i'm using pic16F877A to control and to show the LCD. so, this wee, i'm start to make a coding. after searching at internet, there have a few reference based on the project that i'm will produce.

protues part 1

still in making to construct one of part in the project. half of the circuit

protues

start to construct the circuit using software by using PROTUES before test it at the board. so, the problem like component burn, broken or so on will minimize.

new sem for FYP2

in this sem, i continue from FYP1 to FYP2. this sem, i need to construct circuit, and the end of week 14, there has demonstration for my project.

BATTERY

DIFFERENCE between non-rechargeable and rechargeable battery:

• Non rechargeable batteries are called primary batteries, while rechargeable batteries are called secondary batteries

• A chemical reaction goes inside non rechargeable batteries’ that release electricity needed to run appliances

• The chemical reaction can be reversed to send or rush electricity inside rechargeable batteries to charge them

• Non rechargeable batteries are cheaper than rechargeable batteries that however prove to be more cost effective because of their ability to be recharged hundreds of times.

Types of popular rechargeables:

NiCad (Nickel Cadmium)- Cheapest and if not properly maintained will get a memory drastically reducing their battery life (drain quicker). Not for use in high drain devices like cameras - unless you like to pack lots of batteries.

NiMH (Nickel Metal Hydride) - Long life, middle cost, no memory - need special chargers - smart or passive. Good for high drain devices

Lion (Lithium Ion) - More specialized batteries. Last a really long time. Most expensive in most cases. Good for high drain devices. Usually require smart chargers.

p/s: i prefer NiMH because the current are higher compare to other rechargeable battery.