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Laser stopwatch timer1/4/2024 Anyone interested should start on the Arduino homepage. The community around the Arduino is quite big and helpful. It basically enables you to write programs in C that are compiled and can run on the device where they have access to the ports on it. Using the Arduino is actually quite easy if you have any programming knowledge. I ordered an Arduino from a Chinese retailer on Ebay. For a long time now I wanted to play with the Arduino and this was the perfect opportunity. In Slovenia most of the expenses we have are payed from our own pockets. Such devices do exist, but $1500 + whatever a big LED display costs is not something we could justify spending. Therefore it is great to have a device that can do this on its own. It is also a bit impractical during training where one could train slides by themselves but has to have someone to do the timing. One is that it introduces some error because it is hard to be completely accurate. Timing this with a regular stopwatch has some drawbacks. From this time the throwing player will know if he hit the speed he wanted and the sweepers can include this data into their decision about the sweeping. Therefore in training and also during games someone will time the time from when the stone crosses the tee line(some teams use the back line) until it crosses the first hog line. It is enough you know that having good control of your slide speed is very important since it enables the player to make consistent shots. Luckily for you this post won’t be about that. If your account is not in a group that allows access to the serial devices, often (dialout), try these commands with the sudo prefix.Some of you may know that I play curling. Substitute your serial device name for ttyUSB0 if your Arduino does not attach with this name. It can also be convenient to read the device directly after establishing proper settings: On LINUX I prefer:Īnother common program for serial communication is cu, The Arduino serial port uses typical defaults, like 8-N-1, so the only setting necessary is the Baud rate of 115200. On Windows the putty program has the ability to communicate to the serial port. If you do not wish to monitor the output using the Arduino IDE Serial Monitor, there are many ways to communicate with a serial port. Pass an object by the second sensor, and the on-board LED should turn off, and the elapsed time, in microseconds, should be printed to the serial monitor. Pass an object over the first sensor, and the on-board LED should light up. The IDE should already have the port set from the sketch upload, so just make sure that the serial monitor is set to the correct Baud rate, 115200 in the attached sketch. If you just used the Arduino IDE to upload your sketch to the device, the easiest way to use the system is through the Arduino Serial Monitor feature. If your Arduino board did not come with a USB cable, you may want a USB-mini like this one for Nano:.
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