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Re: Transformer Problem
The battery is a non linear load. Imagine a capacitor connected instead of a battery. This would alter the overall mosfet capacitance (in short).The best option would be to use the mosfet like a linear regulator, the negative of the battery will be at ground potential...
thynol chloride
Are u drawing too little current???. Try to load the battery to 10% of Ah. Just floating the battery for long periods will make it lose internal resistance. U can also try 90% of charge and leave the battery hungry or a periodic charge discharge.
spdt solid state relay
Toggle switch? I think the way to go is an triac/scr solidstate switch (SSR). It is controlled at the input with a few milliamps of current and 5 to 20V. you get these in all flavours of voltage and currents. All u would need for the drive is a 555 toggling at 100 Hz or...
Flybacks tend to be noisy at no load. the load helps a great deal in reducing the spikes. Also if directly connected to the mains,(with out pfc), the mains acts as a damper for the flyback spikes. so u would need a good damping circuit for the flyback spikes. This could easily contribute to the...
Diab compier 68K
Hi,
i am using a diab compiler 5.3. I have a problem with a section of code developed with sds 7.1.
A=newB (this,int,&C::D,char,int). the compiler throws an error
Warning :qualified name not allowed in member declaration,char *C::D
Error:no instance of constructor "B::B"...
i have not used the programmer you mention, but a modified jdm programmer works fine with winpic800 software.It is also called a multipic programmer or a feng programmer.
It does program most of the pic's and also works from the power from serial port. It works fine on desktops, but may not work...
Re: Autonomous Robot
The book INSECTRONICS gives full details of the making of such a walking Robot. Harware, fabrication, pic basic codes, etc. You will need to get the ultrasonic sensor module / ir module (self fabrication) for obstacle avoidance.
Checkout this link...
pic16f684 software
Yes, winpic800 is a freeware. But if you want to use the full potential of the software, you need the programmer GTP USB+ from sisco.
The (modified )JDM2 programmer does work with winpic800.
I will check out if it will program a 16f684.... though i dont see any reason, why it...
tsop 1738 picbasic
Have a go at this link. These circuits have been checked by me to work perfectly. More over, they are not the standard RC5 codes, so your board cannot be interfeared by other IR or RF transmitters.
h**p://jap.hu/electronic/codec.html
using microcontroller for automation
In fact you can use any of the ready made modules for the ISM band. 433 modules are easily available. Some dual frequency modules are also available. It is easy to buy commercial modules for RF than make your own unless you are an RF design and layout...
HI,
probably the input is from a key board. But dec 49 is not the same as 0x49. the compiler will give you equ. hex from the decimal. Do you want hex 31 or hex 49 for this decimal input??. Not very clear what you want.
Re: UART
yes, you can communicate to 2 UARTS at the same time. You said there are two uarts, i presume it is hardware uarts. so where is the problem. If you are using a two pin config(tx and RX) then a single level translator max 232 is sufficient. in case of 2 hardware uarts, even data...
Re: L293D
Stray voltages on the drive and enable pins could switch the bridge on. If the drive is not comming from the microcontroller, try to put a 10k or More pull down resistor on the control pins of the Bridge Module.
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