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Hi!
When using the CIPSEND method, CTRL+Z (0x1A) ist the escape caharcter. Now, if I'm not wanting to send ASCII but binary data, it is very possible that a 0x1A occurs in this binary string. In this case, the CIPSEND would be stopped at this byte, wouldn't it?
Is there any workaround for this...
Re: SIM300D Charging Circuit
Hmm if the SIM300 ist that problematic, a seperate chaging circuit might really be a better idea. I already used a MAX1811 in another circuit and it works quite well. Only two capacitors and it works flawlessly.
Using a Charging Circuit would mean that I can...
Re: SIM300D Charging Circuit
Sorry for double-post.
Is a current-limitation using the LM317 appliable to this case? In order to have 625mA, there has to be a 2 Ohm resistor (see attachment).
If I'm right, these 625mA will flow through the resistor. Does this mean that it should be suited for...
Re: SIM300D Charging Circuit
Hi!
Thanks for your answer. I have thought a bit and wanted to get rid of the mechanical components (i.e. the relay). Because of this, I thought about using a transistor. The attachment shows my current approach (Well I didn't thought about the current limiting...
SIM300D Charging Circuit
Hello!
I have some questions related to the charging possibility of the SIM300D. My aim is to build a device, that can be as well used mobile (power by a LiIon-Battery) or e.g. in a car (powered by Car-Voltage).
What I understand by the datasheet is, that you connect...
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