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Hello,
The simplest technique to achieve this operation is the use of a Dual Pole Dual Throw relay.
The Connection would be :
NO1=Supply + NO2= Supply -
CN1=Motor + CN2=Motor -
NC1=Supply - NC2=Supply +
Here NO - Normally open Terminal; NC- Normally...
I have developed a small board for the AT89C51 as well as P89V51RD2.
The schematics is attached.
Send me a PM in case you want to know more.
Warm Regards,
Boseji
https://m8051.blogspot.com
485 to 232 conversion
Hello,
RS485 is not a protocol but a Physical Layer.
It is basically a Differential line transmission like Ethernet.
There is a TX+ & TX- along with RX+ and RX-.
For conversion to the RS232 you would require to convert this diffential signal to a Single ended signal...
Hello,
A mistake from my side. The AVCC itself would become the Reference. This facility of Internal reference is only available in a few of the M16s I have used. So I mixed it with R8C. You require to use the AVCC with the levels of 3.3V or 5V. Also keep in mind that the Input ADC signal...
microcontroller to use
I have used quite a few of the Micros:
1. AT89C51/2051/52, P89C51RD2
2. C8051F340, R2010
3. AVR - Mega, Tiny
4. R8C/13.29
5. PIC16F877,PIC18F4550
6. STM32F102
7. LPC2138/48
8. AVR32- AP7000
9. MSP430F20XX, MSP430F149
10. Cypress PSoC Micros 28X series.
11. AT91SAM7X256...
Hello,
It is possible that you are trying to Do a C++ thing in C. You should do it the C way:
CODE
unsigned int Key_0;
int Key_0=IOPIN1& 0x00080000 ; // Read input pin P1.24
You cant arbitrary load defined vars in C.
Best of Luck!!
Hello,
Dont loose heart.
Those who keep Trying Never Loose!!
I am a R8C user too. We I have used R8C/13.
You can either use the internal ref or use the VCC for external ref. But mind it the Vref < VCC - 0.5 else I have faced a lot of problem in one of my projects. I was trying to make a scope...
38khz ir transmitter schematic
Hello,
I hope that you will be having the remote for the device you want to control.
In a fast micro like AVR, write a cap-com type of program using dual Interrupt and find out the timing. Using this you can determin the type of code.
Next task is to make a 38KHz...
Hello,
I respect all out C/C++ fans. But let me tell you on system side if you want to do some simple things C takes a far longer time to do it.
Eg: I want to Scan a data file for a string of bytes
In C: 102 lines (No comments)
In Python: 18 Lines (No comments & Win32)
I want to write...
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