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www.xudongz.com
| | coderdojoathenry.org
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| | Hello again everyone. I was away this week so Dave led the group, they did a couple of Arduino projects. They revisited the traffic lights from December but this time used the Arduino to control them and then moved on to a temperature and humidity sensor called the DHT11. Here is the wiring diagram...
| | hut.pm
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| | craigjb.com
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| | Adventures in hardware hacking, low-level software, FPGAs, and more!
| | ciesie.com
121.8 parsecs away

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| You programmed STM32 microcontroller using Nucleo or Discovery boards. That means you used Serial Wire Debug (SWD) for programming/debugging. Now, you are designing a PCB with a STM32 microcontroller on it, which means you have to be able to program it. One solution is uploading the code through a bootloader - a small piece of software, made by ST that has been saved in the protected (read-only) memory of the microcontroller.