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microcontroller project washing machine control
One problem:
EMI noise coming from the relay coil.
See URL for Suppressing Relay Coil Transients. (DC coil)
http://relays.tycoelectronics.com/kilovac/appnotes/transients.stm
Another problem:
EMI coming from switching inductive loads.
(Spikes...
emi on pic micros led
If you have EMI problems post the whole schematic.
Use numbers for the components like R13 470 Ohm so people on this
forum can refer to the schematic with ease. Example: replace R13 with 220 Ohm.
Luciano
washing machine control system block diagram
Hi!
Make a list of what you need to control.
A washing machine can be quite sophisticated.
Average machine in Europe:
- Buttons.
- Display.
- LED's.
- Water IN.
- Water level.
- Water heater ON/OFF.
- Water temperature sensor.
- Water IN (washing...
i2c serial ram
FRAM
FRAM offers a unique set of features relative to other semiconductor technologies. Traditional mainstream semiconductor memories can be divided into two primary categories -- volatile and nonvolatile. Volatile memories include SRAM (static random access memory) and DRAM...
Re: BCD FloatingPoint
APP NOTES BY FUNCTION
**broken link removed**
App Notes Math:
**broken link removed**
https://ww1.microchip.com/downloads/en/AppNotes/00575.pdf
https://ww1.microchip.com/downloads/en/AppNotes/00660.pdf
https://ww1.microchip.com/downloads/en/AppNotes/00670b.pdf...
Hi!
RS-485 is the right solution to your problem.
You should call the server 'master' and the clients 'slaves'.
DATASHEET MAXIM RS-485 Transceiver
MAX485E up to 32 transceivers on the bus.
MAX487E and MAX1487E up to 128 transceivers on the bus.
**broken link removed**
Example with RS-485...
Re: guide me
Hi!
1. What is your educational background?
2. What programming languages do you know? (Also your level).
3. What computer you will be using? (Windows, Linux, Mac, ..).
4. What do you know about analog electronics?
5. What do you know about digital electronics?
6. Why do you want...
Re: C code
Hi!
You should be able to find an answer in any C book for beginner.
If a book doesn't answer these simple questions, well, maybe you'll want
to try a different hobby.
Luciano
In case of a MCU with external RAM (battery backed-up RAM),
how do you prevent what was mentioned in the reply of the user Cortex?
(Make a copy of the MCU and make a copy of the external RAM).
Hi!
......with 50 grams of C4 explosive.
Are you working for Q Branch?
Seriously, the anti-tamper circuit will work for the first enclosure, but once you open it you
will see how it is built and therefore you will know how to open the second enclosure without
triggering the anti-tamper...
what does &porta mean
Hi!
Before you write software for microcontrollers, learn
first the C programming on a PC. Use a PC with an ANSI
compliant C compiler. Write EXE programs that will run
in a MS-DOS console window. On the WEB you can find a lot
of free tutorials about C.
Example...
op-amp sine-to-square wave converter
1 Silicon Diode + 1 Resistor + 1 Digital Output optocoupler.
From secondary AC > Silicon diode > Resistor > LED inside optocoupler > Back to secondary AC.
The LED inside the optocoupler will pulse at 50 Hz. The value of the resitor
depends on the secondary...
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