My task for the system was to implement and program all the hardware devices and make data available to the receiver program running on the PC. This includes the configuration of all Prospeckz devices and implementing protocols for radio transmissions communication back to PC. I was also tasked with setting up the accelerometer chip(s) for data ga
Click here to download the full size of the above Circuit.
thering. To do this, I split the problem into several requirements: The wireless communications between hardware devices were initially required to support a single transmitter, however this requirement was amended in later stages of system development to support receiving data from multiple transmitters with minimal losses. To define the format of data transferred from receiver to PC, I worked closely with Li to create a compact and efficient format that conforms to the standards of my implementation and the PC processor that he worked on. - Design the circuit peripherals around the chips and mount them on protoboards for testing, later switching to small PCBs to integrate with transmitters compactly Initially the group had an idea to also incorporate a gyroscope into the hardware implementation to increase the system`s capabilities, however no devices were available and in the end only an accelerometer proved to be sufficient. In response to the requirements above, I tackled each task individually, making sure the implementation is robust before moving on to the next stage. I first implemented the radio communications between transmitter and receiver, using test programs on the Prospeckz such as the Cycling Led example in the Prospeckz Guide to verify by design. The ProSpeckz IIK (Programmable Speck using Zigbee Radio) was used extensively in this project, as it acted as the main microcontroller for all hardware behavior....
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.....
characters left: