The Hakkit robotics shield is a breakout kit for the Arduino Uno R3. When assembled the shield gives five standard servo headers taking advantage of the PWM pins on the Arduino and breaks out the analog pins to give six inputs for sensors. This shield is the first part of our range of robotics kits. The analog headers on the board are intended to
Click here to download the full size of the above Circuit.
be compatible with a range of sensors which we have coming soon the have been planned so that sensors can be plugged in and receive power. These are designed to use the same plugs as standard servos so as to reduce the number of different types of connectors and leads that are needed to use the shield. The servo out connectors are there to allow the use of servos or electronic speed controllers (* See Note) allowing the robot or project to have the ability to move around. * Note: When using electronic speed controllers with BEC (Battery Elimination Circuit) you will not want to use the regulator on the board. If you want to power your Arduino separately you should remove the power jumper. If you would like to use the power supply from you ESC to power your Arduino you should put the jumper into the Arduino Power Source position. Not all speed controllers have a battery elimination circuit but if they do it is usually listed as a feature on the packaging. The above schematic shows the full breakout of the pins that we are using and the power supply circuit. We have chosen not to add capacitors onto the 7805 circuit as the voltage output from the chosen part has proven to provide an output voltage within the desired tolerance without the need of the capacitors. Not shown on the above schematic we have also included a header for a software serial port. This uses the soft serial library within Arduino. We have planned this port...
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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