ArduinoISP Bootloader/Programmer Combination Shield (not shown) & Arduino with USB to serial chip (e. g. Arduino Uno ) to upload the bootloader and sketches to DIYduino. You can also use a USBtoSerial programmer for uploading a sketch and work around the Bootloader Shield and use the DIYduino you build here to load the bootloader. To create
Click here to download the full size of the above Circuit.
the strip board layout I determined the schematic I wanted to create first. You can essentially do a strip board design with any schematic no matter if you invented it, downloaded it, or re-engineered it. For me the official Arduino schematic was a tad too complicated and essentially overkill for my purpose. Instead I altered the much simpler schematic of the minimalist Arduino as shown in the first figure. This schematic was published and discussed on. 2. I changed the values of the capacitors that smooth potential voltage peaks at the 5V regulator. These are the values that I had available in my stock and they`ll do the job. 3. I crossed out the LED/resistor connected to Pin13 to safe parts. I only connected an LED/resistor temporarily to test the functionality of the DIYduino as described later. Then I combined the minimalist Arduino schematic with a schematic of a L298N motordriver that I found on solarbotics`s site. I did this by connecting L1, L2, L3, and L4 (L298N pins 5, 7, 10, & 12) to the ATMEGA`s digital pins 7, 8, 13, & 12, respectively. Pins E1-2 and E3-4 (L298N pins 6 & 11) are connected to +5V for maximum motor speed at all times or to Arduino PWM pins 9 & 6 for adjustable motor speed, respectively. I am also showing the ATMEGA 168/328 pin map, which help me to assign the proper ATMEGA pins and which can be found at. The table shows all the parts for the devices including prices from Jan, 2013. I considered...
This project fits more for custom made battery casing that can have more space to hide things inside. This switch with few alterations can be used for any other project as well but is designed based on e-bike needs! This project use a clever functionality of....
The circuit described here uses ultrasonic oscillations and operates based on the propagation velocity of these oscillations in the air. Thus, we can easily determine the distance of two points if the time within which the wave travels this distance is....
Sometimes the precious metals are hidden too deep and are not detected except with complicated devices. In many cases, however, small pieces of precious metal buried near the surface can be detected by relatively simple means. Everyone is very attractive to....
Many times for various reasons we forget or can not water the plants that we have in our homes. And many humidity sensors units just notify us with a beeping sound or with a flashing light, that the pot needs watering. But what if we are away from home? This....
The principle behind a metal detector is really very simple. Proof of this is the circuit that follows, in which it proves that the construction of a metal detector can be done in the minute, with few components that we find very easily everywhere. With the....
The sub-harmonic bass generator is a sound producing unit for guitars. The sound it produces looks very much like that of the bass guitar. The octave generator is sometimes quite unusual since it does not produce any of the usual ways of coloring the sound,....
In the past the sounding (sea bottom measurement) was done with the "bullet", that is, with a heavy lead object that the seamen plucked into the sea hung from a calibrated rope. As soon as the "bullet" reached the bottom, the depth appeared directly from the....
This Amplifier was designed to have the following specifications: Distortion less than 0.1% at full power of 100W even at 20KHz. Power has to be attributed to an extended bandwidth. The output transistors must be protected against short circuits. The power....
A series of LEDs serve to alert the gardener when plants need water. Using two conventional digital integrated LEDs and a series of LEDs, we make a very useful device for gardening. The device detects the amount of water in the pot and alerts the grower.....
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