raddevus
  • Member for 7 years, 5 months
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1 answers
2 votes
3k views
When I write data to a BLE Characteristic (FFE1) to send data over bluetooth, is the data encrypted?
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3 votes

I found one sentence as part of another answer that seems to indicate that writing data to a characteristic before being bonded means that the data is not encrypted. "You will not have encrypted ...

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2 answers
0 votes
107 views
ceil(log2(x)) or ceil(log2(x)) - 1 [repeat the post question]
1 votes

I think what you need to focus on for the problem you are looking at is what type is the value stored in. The reason you need to know what type it is stored in is because you need to know how many ...

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4 answers
0 votes
650 views
How to do this USB transfer?
1 votes

I'm not sure if the STM32 is a requirement or just happens to be the hardware you saw and began trying with. However, there is much easier hardware (than stm32) to use to do this. If you get an ...

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2 answers
1 votes
364 views
Mini solar panel not working
1 votes

How about trying something a bit different to make things easier. First, let's see if you can light up an LED with using the solar panel. Build the following circuit. simulate this circuit – ...

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4 answers
3 votes
2k views
Multimeter, measuring current calculates less. Can I calculate meter's internal resistance this way?
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1 votes

I was directed to the following YouTube video and it contains the best explanation of the phenomenon that I am seeing. What is ammeter burden voltage, and why you should care (YouTube) My extra ...

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4 answers
2 votes
3k views
What are some reasons my atmega32u4 loses program when disconnected from power?
1 votes

I have a usbasp programmer so after I read @nick-gammon's great answer and it sounded like I just needed to flash a new bootloader onto my knock-off boards I wanted to try it. I did not exactly know ...

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2 answers
0 votes
70 views
Build PCB with 19 Pin PCB Headers
0 votes

Download free kicad software (PCB design) Add 19 pin connector holes (thru hole design) to PCB upload PCB file to oshpark - PCB creator. order finalized PCB when you receive them solder on your ...

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3 answers
0 votes
98 views
Am I correct in assuming voltage is used to describe two different concepts?
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I believe you are using two different analogies to explain voltage. Voltage is really one concept. Another term for voltage is potential difference. This is similar to the concept of water in a pipe. ...

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2 answers
0 votes
528 views
Mechanical Keyboard PCB: Single Row Failure
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I'm just a hobbyist myself. I was browsing over the board and I noticed the screw (shown in image). This screw location is extremely questionable to me. It seems like it creates a place of contact ...

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2 answers
1 votes
90 views
What’s this connector?
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I think I found it and it has dimensions too so you can check. https://amzn.to/2Dau5I6

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3 answers
0 votes
190 views
How are size of caps determined/calculated for use in smoothing voltage?
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0 votes

I found a definitive answer in the Atmega328p complete data sheet (starting at bottom of page 50) so I thought I'd post it here for future reference. Low Power Crystal Oscillator Pins XTAL1 ...

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1 answers
-1 votes
196 views
Processor speed for generating PWM at 1 MHz
-4 votes

You could use something as simple as an Arduino Nano (main processor is an ATMega328) and run the following code (from official arduino site): int outPin = 8; // digital pin 8 void ...

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