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Hi,
I'm in the middle of learning about TFT as I'm in the process of learning about embedded. I would like to get feedback and advice from the DP communities.
From my understanding the TFT normally connected using another IC called LCD/TFT drivers which are controlled by the MCU either through...
Tutorial - Building GCC From Scratch For Cortex-M3
Hi,
Currently I'm dabbling and playing around with Cortex M3 development board and found that there are resources scattered around the internet (old and new) that shows how to build the toolchain, but it's not an easy task for someone who...
The dev board is powered up using USB so I will need to use an external power source, ok this I understand better now. Now looking at the motor spec it requires 0.28A (no load) and Operating Volts of 1.5- 4.5V and Nominal Volts 3V, bit lost here what is the difference between operating and...
That's what I'm trying to understand whether after calculating that we have calculate before we still need extra power source, so looks like it we still need an extra power.
Ok, so let me see if I understand all this correctly (sorry just trying to get my head around it, I'm a slow learner at this :) ), so from your explanation using the either Mosfet or NPN Darlington is enough to drive the motor without using an extra source, is this correct ?
Hi,
I read one of the link that you provdided **broken link removed** take note, we were lucky because our Ibase = 16mA, a microcontroller’s single pin can only source a current of about 20mA. If om/2011/03/22/how-to-drive-a-motor-using-mcu/ and it mentioned
Correct me if I'm wrong does this...
For now I'm happy to start and stop the motor but later I also want to change the rotation but it's not important right now, just trying to get the basic first.
Frankly speaking I'm not sure for this one, what I'm planning to do is just make the DC motor turn by starting or stopping it from...
Hi Alex,
Sorry for a basic question as I understand that the board is powered up using USB so it's a 5v so how do we calculate the output in mA ?
I have a breadboard so I connect the GPIO pin using a female-male pin and then I can use a transistor in the breadboard correct ? can you help me...
Hi,
I just bought a small DC motor to experiment on how to control it. I've got a STM32 Cortex-M3 dev board (attached in this post). I know how to program the board and run an app I need guidance from the expert whether what I'm doing is the right thing.
What I plan to do is connect the (+) of...
Looks like after using one of BigDog's link I managed to calculate the Ω values which comes to - 10 and 15 which makes sense why the LED keep on blowing up. Need to go back to electronic shop to do more resistor shopping.
Thanks all
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