Arduino At Home DIY ElectronicsArduino Distance Sensor Sensing the proximity of objects can be achieved effectively using ultrasonic echo techniques. Transmitting pulses of ultrasonic sound and measuring the time it takes the echo to return does present us with some interesting challenges however. The sound can bounce off more than one object at different distances or the pulse is scattered. Sometimes the receiver doesn't even hear the echo. Luckily these problems can be overcome and a useful instrument built using an HC-SR04 ultrasonic transceiver and a little clever software running on an Arduino. More... Arduino Pro-Mini Carrier with ISP Programming One of the most versatile of the Arduino family is the Pro-Mini. Its tiny footprint and low power make it ideal for many battery powered devices. However it lacks a USB port and an ISP programming connector which makes it a little more difficult to program. You can either attach an FTDI USB to serial converter and program it using the bootloader like other Arduinos or you can program it using the ISP programmer built onto this break out board. Don't worry, the ISP programmer is no more difficult to use than the bootloader and it also allows you to reprogram the bootloader and the configuration fuses. This is most important when configuring the board to run at very low current consumption and you can't do that with the bootloader. More... Arduino Safety Cut Out Senses Jams Arduino Pro-Mini ISP Programmer Using A UNO The Arduino Pro-Mini is a tiny microcontroller with similar features to that of the UNO. It has a bootloader for uploading programs but unlike the UNO it doesn't have a USB interface so you need to use a USB to serial adapter to use it. Why not use an In System Programmer (ISP) instead? You can use a cheap UNO as an ISP and you can then program the bootloader and fuses as well as the application program. Sounds like a win-win to me. More... << Previous page ..2 of 2 Amplifier
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