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Hi
I want to design a PLC device to communcite throw power line .
My main feature are
- Small cost below 5E
- no high speed below 100 bit/sec
- Reliable
Do you an IC or a application that will help me.
Thanks in adavnce
Re: Need of Equivalent Part to Philips(NXP) microcontroller Part No:P89V51RD2BN
I had like 5 old project with 8051 and i just replace with SST mcu program with the same hex and the project works.
Re: Need of Equivalent Part to Philips(NXP) microcontroller Part No:P89V51RD2BN
yes the SST89E516rdxx series are compatible with old 8051.
i have test it.
I have to problem with LPC1227
1) I am using the LPC1227FBD64 as a slave in a SPI communication.
The spi have all pin MISO, MOSI,SCK,SSEL.
The master mcu makes low the SSEL and then send a raw 30 bytes in spi and after makes high the SSEL.
I only get the first byte in first byte of the 30...
Hi,
I am using ATXMEGA16E5 in an application. And i use the RTC clock ( period 1 sec , external 32.768 clock) to wakeup from power save mode.
After wake up i measure some ADC channels and after goes to power save mode.
The program works well when no debugging.
When i use the AtmelICE and i...
I am using ASF and IAR compiler.
I use Atmel ICE debuger.
My aplication is awake every 1 sec and stays awake for only 100us and after it go to sleep.
At the Build window of IAR the device always say sleep.
When i am debuging. i can not stop halt the mcu. it give faults.
When the...
I am using the CS5490. i am measuring the voltage and the current from ( shunt resistor).
But i have some problems with CS5490. The IC "stacks" and need many times reset.
Does anyone knows any other energy meter IC which is more stable.
Hi Fvm,
Thank for the answer. The limit 30uA is the total consumption not the leakage.
This device is powered by the line 30VDC.
I do not know the photovoltaic opto coupler. Do you have a tutorial link for them?
Hi ArticCynda,
R23 is for turn on and off Q1, so i turn on and off the switch. This is controlled buy a mcu.
But if i omit R21 the VGS of the Q6 and Q7 wil be like 30V. the limit for the mosfet is +-20 VDC.
Hi SunnySkyguy,
So what do you propose?
I want to replace a bistable relay with a analog siwtch with mosfet.
Because the mosfet are more cheap.
The voltage between IN and OUT is from 0 to 30VDC.
I want to turn on and off the switch i will not do PWM.
The R20 and R21 are very big because the consumption is very crusial. The current...
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