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If you are confused about connecting motor driver, then here is explanation
Look at the datasheet of L298. Place a 3ohm, 5W resistor in between pins 1 and 15. output pins connect to motor. Input pins to microcontroller. Enable pin to PWM of microcontroller, if you want to control speed or else...
Thanks Brain and Frank . Yes, I have searched amateur radio web sites and found yagi antenna is best. I'm a newbie in antennas. I'm supposed to use yagi on receiver side or transmitter or both ? Do I need a connect co axial cable to feed or receive from the antenna ?
If in case, I go with wired...
Easy way to do that would be L298 driver IC with a heat sink. I think you can supply 12V to drive motor but accordingly place sense resistor to limit the current. Since voltage is 3.2 V and current is 2.8A. If you use 12V then maximum current is 0.75A
If you use a sensing resistor greater than...
With experimentation I found that, what betwixt stated is exactly right. There is no much improvement in the range even if I change data rate from minimum to maximum , may be only 2-3 meters difference. I'm totally convinced by the reason
With 17cm Single strand wire as antenna on both Tx/Rx...
Thank you for your detailed answer that helped me a lot . I started building this circuit so I can experiment with the range. Once I complete it I'll post the results and if I have any doubts I'll ask .
Thank you again betwixt :)
Thank you very much for answering. Actually I'm using this for a remote control application itself. But I want a little more range because of RCC(reinforced cement concrete) in between Tx and Rx . So when I look at datasheet of HT12E there is a provision of lowering data rate there is graph of...
I gathered information from googling. But still have doubts . Please help me with this
I'm using a 433 Mhz Tx/Rx Pair for RF Communication and HT12E and HT12D for encoding and decoding. I wanted to know more about data rate and setting it for faithful transreception.
And bandwidth for ASK is...
Typical Bitrate of HT12E is 1kbps so bandwidth for ASK is 2*Bit rate which is 2KHz. But it is mentioned in data sheet as 2Mhz?
I'm using a 433 Mhz Tx/Rx Pair for RF Communication. Typically we use 1Mohm as Rosc ? can I use a 10M ohm resistor to reduce fosc and get a lower data rate which...
Hello Everyone ,
I'm using RF 433Mhz modules like this one https://www.sunrom.com/143 . What will be bandwidth I'll be getting ?and what is the data rate ? In this datasheet https://www.robokits.co.in/datasheets/TXC1.pdf it is mentioned that 1kbps . How it is calculated ?
Does the data rate...
I'm working with Atmega 2560 , have to do both white line following and some servo actions . Both should run live so that both process gets same priority . With normal C programming i'm not able to achieve this , if white line following is made a priority than servo actions are not perfect and...
I'm working on a dispenser mechanism for which i need 12V stepper motor, Bipolar.
In local stores i found PM35-S048 motor which i connected to micro controller with L293D drive circuitry(half step drive), but the holding torque is not sufficient.
As per datasheet of PM35-S048 , it is 24V...
ya , i checked datasheet and found 200ma is max sinking capacity of 555 timer. I'm using 400 ohm coil PCB Relay .
I checked Current drawn it was 30 ma when i checked it using CFL at Relay load .
But when i connect to AC Motor 230v it behaves abruptly . For some time circuit works proper ...
To control 0.5 HP motor i did this circuit . Using PCB relay , 555 is getting heated up sometimes and relay switching abruptly. Is this Circuit correct ?
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