HC 05 With 2-3v lithium cell
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@kowshik1729 I just find that hc05 is not getting much ampere(current) from that battery.
That is the main problem .
Amps
What to do
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Can you share me any specifications and picture of the battery??
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@kowshik1729 this link also include data sheet link
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@Geethesh I've seen your battery specifications. The battery you are using gives out 3V which is a nominal voltage but you must take one more parameter into consideration while choosing a battery for your applications. It is nothing but Amperage that it can supply.
I will explain "WHY?" ampere rating is so important in your application. HC-05 module draws most of the power from the battery while transmitting the packet data, it almost draws 200mA of current at a voltage of 3.3V this means the battery you are going to use must supply current at this amounts. But if we see the battery that you have to use i.e CR2032 which is a coin cell battery, its maximum supply current is just 3mA but our minimum required supply current is 200-250mA which is way too high for the battery to supply and that is the reason of your failure.
So, please use these battery types of Li-Ion batteries which can give a high supply current of order 500-700mA at 3.7V. I've been thinking that you are using these since the start of our conversation and that lead to my misunderstanding and made the correct reply late. Sorry for the delay. All the best...!!
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@kowshik1729 thank you
Recent Posts
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Very much informative!!!!
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If you are using raspberry pi as one of your main computers and have separate monitor, keyboard and mouse, then you might be tired of copy and pasting terminal commands and codes while doing projects with raspberry pi, because running chromium-browser and reading tutorial will pi slower and using a sperate keyboard and mouse use our workbench space too.
recently I read a blog Share your keyboard and mouse between computers with Barrier by Gordon Hollingworth which is cool.
In that blog, he mentioned a software called barrier, it's a software that will allow you to use a single keyboard and mouse to control multiple computers by physically turning a dial on the box to switch the machine you're controlling at any given moment. The barrier does this in software, allowing you to tell it which machine to control by moving your mouse to the edge of the screen, or by using a keypress to switch focus to a different system.
Follow these to share your computer keyboard and mouse with the raspberry pi
First, we need setup raspberry pi
Step 1: Download and Install Raspberry Pi OS on SD Card
Step 2: Connect raspberry pi to the wi-fi network
Step 3: Install barrier, for that open your terminal (Ctrl + T) and paste or enter the following
sudo apt install barrierThen click enter.
Step 4: Setup barrier, Open barrier by typing barrier on the terminal, if you successfully installed the barrier you can see like this.
Select option Client (Use another computer's mouse and keyboard) and Select Auto config option too, also note the Screen name, which we need for the server.
That's all next we need to set up the desktop/laptop computer.
Step 5: Download and Install barrier on desktop or laptop computer (The Server), download link
Step 6: Set up the barrier by selecting Server and position your monitor on barrier software.
To Position, the screen clicks the configure server.
Here, to drag and drop the monitor icon to the desired position you need on the grid.
double click the screen and set the screen name, you can obtain the screen name from the raspberry pi barrier client. (See Step 4)
after setup, it should be like this. Then click OK
in the following screen, click Apply and Just wait few seconds then try to move the mouse to the corner. Yes, It should work.
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@rafitc99 Looks cool, Thanks for sharing.
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