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In the market, there are different types of 4G LTE-based dongles which have hotpot features. That means, if anyone put a SIM in there and simply powers it up it works as a WiFi router. And then, we can connect multiple devices with this hotspot.
Now, my question is, how we can make it? If I...
I was working on a project to use STM32F105RBT6 as a USB Host and another device which is CH340 based acting as a device. Now, using the STM32CubeMx, I have generated the code for the USB host that can detect if there is anything in the USB port, can detect if it is disconnected.
While...
I was trying to connect the STM32F105RBT6 board with PC. But the USB driver not found.
Tried different drivers from the internet, but no one actually works. It says already updated driver installed. Do you have any idea to find a perfect driver?
Thanks in Advance.
We know that we can scan nearby Bluetooth devices through our phones. But how we can scan nearby available Bluetooth devices using Bluetooth modules such as HC-05/06 or JDY-08 etc?
Thanks in advance.
1648993590
I used this code after reading that the HC05 can find the scan list.
#include...
ok, understood.
I have a battery pack, that is using CH340 to communicate through the USB port. It takes command and changes voltage, output, etc. To make any change, each time I need to connect it with a PC. But this pack is supplying power to a microcontroller board in which I have UART. That...
We use CH340 for serial to USB communication. If we use the same two sets, like the image below:
Is it possible to make communicate with two devices that have serial/UART options, we use CH340 for Serial/USB conversion, and again USB/serial conversion is done with another CH340 which gives a...
No, it's your misunderstanding. I know the basic math and physics of 3phase. But you are misunderstanding me. Yes, it's complex to calculate. But I found many 3phase meters at extremely low cost. Inside the MCUs are also lower level which is not suitable for the basic math of calculating...
In common 3 phase panel meters (volt) the lines and the neutral are connected to the meter. The GND of the internal circuit is common with Neutral. Or with a series resistor. And the other 3 phase lines are connected through some resistors. Simple voltage divider circuit.
But how do they...
But that we also find using DMM while measuring voltage Line to Line. How can we find the equation of that reading? Yes we know that taking average will not give actual value. But what equation we should use?
I do not need to calculate 100% preciously. As with the DMM, near value is enough. Using a DMM, I can measure the Line-Line voltage. But I need the equation so that I can calculate the line-line voltage measuring the Neutral-Phase voltage.
Your average method may work. But I'm sure. I did not...
We know that the voltage calculation for phase to phase is line voltage x root(3).
But what formula we can use for unbalanced voltage. Such as,
Phase A: (N-P) 220V,
Phase B: (N-P) 210V,
Phase C: (N-P) 230V.
Then what will be the Line - Line voltage calculation? I mean the equation.
Thanks in...
I'm using MikroC pro for PIC. There is no such explanation about heap. But there is always option in the properties to set memory as heap. I want to know what is this heap and why we need to use it and when we should uese it?
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